Publications

47 results

2021
[47]	Burak Ede, Batuhan Kaplan, İbrahim Kahraman, Samed Keşir, Serhan Yarkan, Ali Rıza Ekti, Tunçer Baykaş, Ali Görçin, Hakan Ali Çırpan, "Measurement-Based Large Scale Statistical Modeling of Air-tob-Air Wireless UAV Channels via Novel Time-Frequency Analysis", In IEEE Wireless Communications Letters, vol. , no. , pp. 1-1, 2021. [bibtex] [pdf] [doi]
[46]	M. Turhan, E. Öztürk, H.A. Çırpan, "Deep Learning-Aided Spatial Multiplexing with Index Modulation", In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 12629 LNCS, pp. 226-236, 2021. [bibtex] [pdf] [doi]
[45]	Mustafa Atahan Nuhoglu, Yasar Kemal Alp, Aydin Bayri, Hakan Ali Cirpan, "Iterative Semidefinite Relaxation for Geolocation of Uncooperative Radars Using Doppler Frequency Measurements", In IEEE Transactions on Aerospace and Electronic Systems, vol. 57, no. 2, pp. 1197-1210, 2021. [bibtex] [pdf] [doi]
[44]	Akif Kabacı, Mehmet Başaran, Hakan Ali Çırpan, "Reference signal-aided channel estimation in spatial media-based modulation systems", In Physical Communication, vol. 47, pp. 101396, 2021. [bibtex] [pdf] [doi]
[43]	O. F. Gemici, I. Hokelek, H. A. Cirpan, "Modeling Queuing Delay of 5G NR with NOMA under SINR Outage Constraint", In IEEE Transactions on Vehicular Technology, vol. , no. , pp. , 2021. [bibtex] [pdf] [doi]
2019
[42]	Ömer Faruk Gemici, Fatih Kara, İbrahim Hökelek, Hakan Ali Çırpan, "User scheduling and power allocation for nonfull buffer traffic in NOMA downlink systems", In International Journal of Communication Systems, vol. 32, no. 1, pp. e3834, 2019. [bibtex] [pdf] [doi]
[41]	Ersin Öztürk, Ertugrul Basar, Hakan Ali Çırpan, "Multiple-input multiple-output generalized frequency division multiplexing with index modulation", In Physical Communication, vol. 34, pp. 27 - 37, 2019. [bibtex] [pdf] [doi]
2018
[40]	M. Basaran, H. Şenol, S. Erküçük, H. A. Çırpan, "Channel Estimation for TDS-OFDM Systems in Rapidly Time-Varying Mobile Channels", In IEEE Transactions on Wireless Communications, vol. , no. , pp. , 2018. [bibtex] [pdf] [doi]
[39]	E. Öztürk, E. Basar, H. A. Çırpan, "Generalized Frequency Division Multiplexing With Flexible Index Modulation Numerology", In IEEE Signal Processing Letters, vol. 25, no. 10, pp. 1480-1484, 2018. [bibtex] [pdf] [doi]
2017
[38]	E. Ozturk, E. Başar, H. A. Cirpan, "Generalized Frequency Division Multiplexing with Flexible Index Modulation", In IEEE Access, vol. , pp. , 2017. [bibtex] [pdf] [doi]
[37]	S. Gul, M. Oner, H. Cirpan, "Cyclostationarity Based Blind Block Timing Estimation for Alamouti Coded MIMO Signals", In IEEE Communications Letters, vol. , no. 99, pp. , 2017. [bibtex] [doi]
2016
[36]	M. Başaran, S. Erküçük, H. A. Çırpan, "Bayesian compressive sensing for primary user detection", In IET Signal Processing, vol. 10, no. 5, pp. 514-523, 2016. [bibtex] [doi]
[35]	Merve Turan, Mengüç Oner, Hakan A. Çırpan, "Joint Modulation Classification and Antenna Number Detection for MIMO Systems", In Communications Letters, IEEE, vol. 20, no. 1, pp. 193-196, 2016. [bibtex] [pdf] [doi]
2015
[34]	M. Özgör, S. Erküçük, H. A. Çırpan, "Bayesian compressive sensing for ultra-wideband channel estimation: algorithm and performance analysis", In Telecommunication Systems, vol. 59, no. 4, pp. 417-427, 2015. [bibtex] [pdf] [doi]
2014
[33]	B. Karakaya, H. A. Çırpan, H. Arslan, "Channel interpolation for LTE uplink systems with high mobility using Slepian sequences", In Physical Communication, vol. 10, pp. 169-178, 2014. [bibtex] [pdf] [doi]
[32]	M. Bąsaran, S. Erküçük, H. A. Çırpan, "Compressive sensing for ultra-wideband channel estimation: On the sparsity assumption of ultra-wideband channels", In International Journal of Communication Systems, vol. 27, no. 11, pp. 3383-3398, 2014. [bibtex] [pdf] [doi]
2011
[31]	S. Ozer, C.H. Chen, H. A. Çırpan, "A set of new Chebyshev kernel functions for support vector machine pattern classification", In Pattern Recognition, vol. 44, no. 7, pp. 1435-1447, 2011. [bibtex] [pdf] [doi]
2010
[30]	E. Panayırcı, H. Dogan, H. A. Çırpan, A. Kocian, B.H. Fleury, "Iterative joint data detection and channel estimation for uplink MC-CDMA systems in the presence of frequency selective channels", In Physical Communication, vol. 3, no. 2, pp. 87-96, 2010. [bibtex] [pdf] [doi]
2009
[29]	S. Çekli, H.A. Çırpan, "Localization of acoustic emitters with time delay compensated ML", In Frequenz, vol. 63, no. 3-4, pp. 69-76, 2009. [bibtex] [pdf]
[28]	F. Simoens, H. A. Ci̧rpan D. Duyck, E Panayırcı, M. Moeneclaey, "Monte carlo solutions for blind phase noise estimation", In Eurasip Journal on Wireless Communications and Networking, vol. 2009, 2009. [bibtex] [pdf] [doi]
2008
[27]	N. Kabaoglu, H.A. Çırpan, "Wideband target tracking by using SVR-based sequential Monte Carlo method", In Signal Processing, vol. 88, no. 11, pp. 2804-2816, 2008. [bibtex] [pdf] [doi]
[26]	H. Dogan, H.A. Çırpan, E. Panayırcı, "An efficient joint channel estimation and decoding algorithm for turbo-coded space-time orthogonal frequency division multiplexing receivers", In IET Communications, vol. 2, no. 7, pp. 886-894, 2008. [bibtex] [pdf] [doi]
[25]	H. Dogan, E. Panayırcı, H.A. Çırpan, B.H. Fleury, "MAP channel-estimation-based PIC receiver for downlink MC-CDMA systems", In Eurasip Journal on Wireless Communications and Networking, vol. 2008, 2008. [bibtex] [pdf] [doi]
2007
[24]	H. Dogan, H.A. Çırpan, E. Panayırcı, "Iterative channel estimation and decoding of turbo coded SFBC-OFDM systems", In IEEE Transactions on Wireless Communications, vol. 6, no. 8, pp. 3090-3101, 2007. [bibtex] [pdf] [doi]
2006
[23]	H. Şenol, H.A. Çırpan, E. Panayırcı, "Linear expansions for frequency selective channels in OFDM", In AEU - International Journal of Electronics and Communications, vol. 60, no. 3, pp. 224-234, 2006. [bibtex] [pdf] [doi]
[22]	H. Şenol, H.A. Çırpan, E. Panayırcı, M. Çevik, "A low-complexity time-domain MMSE channel estimator for space-time/frequency block-coded OFDM systems", In Eurasip Journal on Applied Signal Processing, vol. 2006, 2006. [bibtex] [pdf] [doi]
[21]	H.A. Çırpan, E. Panayırcı, H. Dogan, "Nondata-aided channel estimation for OFDM systems with space-frequency transmit diversity", In IEEE Transactions on Vehicular Technology, vol. 55, no. 2, pp. 449-457, 2006. [bibtex] [pdf] [doi]
[20]	E. Panayırcı, H.A. Çırpan, M. Moeneclaey, N. Noels, "Blind-phase noise estimation in OFDM systems by sequential Monte Carlo method", In European Transactions on Telecommunications, vol. 17, no. 6, pp. 685-693, 2006. [bibtex] [pdf] [doi]
2005
[19]	H. Şenol, H.A. Çırpan, E. Panayırcı, "A low-complexity KL expansion-based channel estimator for OFDM systems", In Eurasip Journal on Wireless Communications and Networking, vol. 2005, no. 2, pp. 163-174, 2005. [bibtex] [pdf] [doi]
[18]	E. Panayırcı, C. Georghiades, X. Wang, H.A. Çırpan, "Eurasip Journal on Wireless Commuication and Networking: Editorial", In Eurasip Journal on Wireless Communications and Networking, vol. 2005, no. 2, pp. 79-82, 2005. [bibtex] [pdf] [doi]
2004
[17]	H.A. Çırpan, E. Panayırcı, H. Dogan, "Iterative channel estimation approach for space-time/frequency coded OFDM systems with transmitter diversity", In European Transactions on Telecommunications, vol. 15, no. 3, pp. 235-248, 2004. [bibtex] [pdf] [doi]
[16]	A. Sen, H.A. Çırpan, E. Panayırcı, "Adaptive Kalman receiver for OFDM systems with transmit diversity in mobile wireless channels", In Frequenz, vol. 58, no. 11-12, pp. 234-238, 2004. [bibtex] [pdf]
[15]	N. Kabaoglu, H.A. Çırpan, S. Paker, "EM based stochastic maximum likelihood approach for localization of near-field sources in 3-D", In Frequenz, vol. 58, no. 7-8, pp. 178-184, 2004. [bibtex] [pdf]
2003
[14]	A. Şen, H.A. Çırpan, E. Panayırcı, "Joint channel tracking and symbol detection for OFDM systems with Kalman filtering", In AEU - International Journal of Electronics and Communications, vol. 57, no. 5, pp. 317-327, 2003. [bibtex] [pdf] [doi]
[13]	E. Çekli, H.A. Çırpan, "Unconditional maximum likelihood approach for localization of near-field sources: Algorithm and performance analysis", In AEU - International Journal of Electronics and Communications, vol. 57, no. 1, pp. 9-15, 2003. [bibtex] [pdf]
[12]	N. Kabaoglu, H.A. Çırpan, E. Çekli, S. Paker, "Deterministic maximum likelihood approach for 3-D near field source localization", In AEU - International Journal of Electronics and Communications, vol. 57, no. 5, pp. 345-350, 2003. [bibtex] [pdf] [doi]
2002
[11]	H.A. Çırpan, E. Panayırcı, E. Çekli, "Maximum likelihood blind channel estimation for space-time coding systems", In Eurasip Journal on Applied Signal Processing, vol. 2002, no. 5, pp. 497-506, 2002. [bibtex] [pdf] [doi]
[10]	H.A. Çırpan, E. Çekli, "Deterministic maximum likelihood approach for localization of near-field sources", In AEU-Archiv fur Elektronik und Ubertragungstechnik, vol. 56, no. 1, pp. 1-10, 2002. [bibtex] [pdf]
[9]	E. Panayırcı, H.A. Çırpan, "Maximum A posteriori multipath fading channel estimation for OFDM systems", In European Transactions on Telecommunications, vol. 13, no. 5, pp. 487-494, 2002. [bibtex] [pdf]
2001
[8]	H.A. Çırpan, O.N. Ucan, "Blind equalization of quadrature partial response-trellis coded modulated signals in Rician fading", In International Journal of Satellite Communications, vol. 19, no. 2, pp. 159-168, 2001. [bibtex] [pdf] [doi]
[7]	H.A. Çırpan, Y. Çekli E. Turker, "A stochastic approach for blind estimation of multiple co-channel signals received at an antenna array", In AEU-Archiv fur Elektronik und Ubertragungstechnik, vol. 55, no. 2, pp. 119-122, 2001. [bibtex] [pdf]
[6]	H.A. Çırpan, M.K. Tsatsanis, "Maximum-likelihood estimation of FIR channels excited by convolutionally encoded inputs", In IEEE Transactions on Communications, vol. 49, no. 7, pp. 1125-1128, 2001. [bibtex] [pdf] [doi]
1999
[5]	H.A. Çırpan, "Blind receivers for nonlinearly modulated signals in multipath", In IEEE Transactions on Signal Processing, vol. 47, no. 2, pp. 583-586, 1999. [bibtex] [pdf] [doi]
[4]	H.A. Çırpan, M.K. Tsatsanis, "Maximum likelihood blind channel estimation in the presence of Doppler shifts", In IEEE Transactions on Signal Processing, vol. 47, no. 6, pp. 1559-1569, 1999. [bibtex] [pdf] [doi]
1998
[3]	H.A. Çırpan, M.K. Tsatsanis, "Stochastic maximum likelihood methods for semi-blind channel estimation", In IEEE Signal Processing Letters, vol. 5, no. 1, pp. 21-24, 1998. [bibtex] [pdf] [doi]
1997
[2]	H.A. Çırpan, M.K. Tsatsanis, "Blind receivers for nonlinearly modulated signals in multipath", In IEEE Transactions on Signal Processing, vol. 45, no. 7, pp. 1900, 1997. [bibtex] [pdf]
[1]	H.A. Çırpan, M.K. Tsatsanis, "Maximum likelihood blind channel estimation in the presence of doppler shifts", In IEEE Transactions on Signal Processing, vol. 45, no. 4, pp. 1102, 1997. [bibtex] [pdf]

4 results

2006
[4]	Erdal Panayırcı, Hakan A. Çırpan, Marc Moeneclaey, Nele Noels, "Blind Phase Noise Estimation in OFDM Systems by Sequential Monte Carlo Method", Springer, 2006. (Book Chapter edited by K. Fazel and S. Kaiser) [bibtex] [pdf]
2004
[3]	Hakan A. Çırpan, Erdal Panayırcı, Hakan Dogan, "Iterative Channel Estimation Approach for Space-Frequency Coded OFDM Systems with Transmitter Diversity", Kluwer Academic Publishers, 2004. (Book Chapter edited by K. Fazel and S. Kaiser) [bibtex] [pdf]
2002
[2]	Hakan A. Çırpan, Erdal Panayırcı, Hakan Dogan, "Non-Data Aided EM-Based Channel Estimation for OFDM Systems with Time-Varying Fading Channels", Kluwer Academic Publishers, 2002. (Book Chapter edited by K. Fazel and S. Kaiser) [bibtex] [pdf]
2001
[1]	Osman N. Ucan, Hakan A. Çırpan, "Blind Equalization of Quadrature Partial Response –Trellis Coded Modulated Signals", Springer, 2001. (Book Chapter edited by K. Fazel and S. Kaiser) [bibtex] [pdf]

84 results

2021
[84]	Hüseyin Enes Ilhan, Sedat Ozer, Güneş Karabulut Kurt, Hakan Ali Cirpan, "Offloading Deep Learning Empowered Image Segmentation from UAV to Edge Server", In 2021 44th International Conference on Telecommunications and Signal Processing (TSP), vol. , no. , pp. 296-300, 2021. [bibtex] [pdf] [doi]
[83]	M.A. Nuhoglu, Y.K. Alp, A. Bayri, H.A. Cirpan, "A new iterative method for passive doppler geolocation based on semi-definite programming", In European Signal Processing Conference, vol. 2021-January, pp. 1812-1816, 2021. [bibtex] [pdf] [doi]
[82]	E.C. Akpolat, O. Faruk Gemici, M.S. Demir, I. Hokelek, S. Coleri, H.A. Cirpan, "Genetic Algorithm Based ARINC 664 Mixed Criticality Optimization Using Network Calculus", In 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings, 2021. [bibtex] [pdf] [doi]
2020
[81]	Y. Yildirim, S. Ozer, H.A. Cirpan, "Deep Receiver Design for Multi-carrier Waveforms Using CNNs", In 2020 43rd International Conference on Telecommunications and Signal Processing, TSP 2020, pp. 31-36, 2020. [bibtex] [pdf] [doi]
[80]	B. Kaplan, I. Kahraman, A. Gorcin, H.A. Cirpan, A.R. Ekti, "Measurement based FHSS-type Drone Controller Detection at 2.4GHz: An STFT Approach", In IEEE Vehicular Technology Conference, vol. 2020-May, 2020. [bibtex] [pdf] [doi]
[79]	B. Ede, S. Yarkan, A.R. Ekti, T. Baykas, H.A. Cirpan, A. Gorcin, "Measurement Based Statistical Channel Characterization of Air-to-Ground Path Loss Model at 446MHz for Narrow-Band Signals in Low Altitude UAVs", In IEEE Vehicular Technology Conference, vol. 2020-May, 2020. [bibtex] [pdf] [doi]
2019
[78]	M. Turhan, E. Ozturk, H.A. Cirpan, "Deep Convolutional Learning-Aided Detector for Generalized Frequency Division Multiplexing with Index Modulation", In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, vol. 2019-September, 2019. [bibtex] [pdf] [doi]
[77]	O.F. Gemici, I. Hokelek, H.A. Cirpan, "NOMA Power Allocation for Minimizing System Outage under Rayleigh Fading Channel", In 2019 IEEE 40th Sarnoff Symposium, Sarnoff 2019, 2019. [bibtex] [pdf] [doi]
2018
[76]	AB Büyükşar, H Şenol, S Erküçük, HA Çırpan, "Rapidly Varying Sparse Channel Tracking with Hybrid Kalman-OMP Algorithm", In International Telecommunications Conference. Lecture Notes in Electrical Engineering, vol 504. Springer, Singapore, 2018. [bibtex] [pdf] [doi]
[75]	H. Pamukcu, B. Karakaya, E. Başar, H. A. Cirpan, "Quadrature Channel Modulation in the Presence of Channel Estimation Errors", In Second International Balkan Conference on Communications and Networking (BalkanCom), Podgorica, Montenegro, 2018. [bibtex] [pdf] [doi]
2017
[74]	Ersin Öztürk, Ertuğrul Başar, Hakan Ali Çırpan, "Generalized Frequency Division Multiplexing with Space and Frequency Index Modulation", In 2017 IEEE International Black SeaConference on Communications and Networking, Istanbul, Turkey, 2017. [bibtex] [doi]
[73]	Omer Faruk Gemici, Fatih Kara, ̇Ibrahim Hokelek, Gunes Karabulut Kurt, Hakan Ali Çırpan, "Resource Allocation for NOMA Downlink Systems: Genetic Algorithm Approach", In 40th International Conference on Telecommunications and Signal Processing (TSP), 2017. [bibtex] [doi]
[72]	Hasan Anıl Akyıldız, İbrahim Hökelek, Mervan İleri, Ece Saygun, Hakan Ali Çırpan, "Joint Server and Route Selection in SDN Networks", In 2017 IEEE International Black SeaConference on Communications and Networking, Istanbul, Turkey, 2017. [bibtex] [doi]
2016
[71]	E. Ozturk, E. Basar, H. A. Cirpan, "Generalized Frequency Division Multiplexing with Index Modulation", In 2016 IEEE Globecom Workshops (GC Wkshps), pp. 1-6, 2016. [bibtex] [doi]
[70]	Mehmet Başaran, Serhat Erkucuk, Habib Senol, Hakan A. Çırpan, "Effect of Inter-Block-Interference-free Region on Compressed Sensing Based Channel Estimation in TDS-OFDM Systems", In 2016 IEEE International Black Sea Conference on Communications and Networking, At Varna, Bulgaria, pp. , 2016. [bibtex] [doi]
[69]	A. B. Buyuksar, H. Senol, S. Erkucuk, H. A. Cirpan, "Data-aided autoregressive sparse channel tracking for OFDM systems", In 2016 International Symposium on Wireless Communication Systems (ISWCS), pp. 424-428, 2016. [bibtex] [doi]
[68]	E. Öztürk, E. Başar, H.A. Çırpan, "Spatial Modulation GFDM: A Low Complexity MIMO-GFDM System For 5G Wireless Networks", In 2016 IEEE International Black SeaConference on Communications and Networking, 2016. [bibtex] [doi]
2015
[67]	M. Başaran, S. Erkucuk, H. A. Çırpan, "The effect of primary user bandwidth on Bayesian compressive sensing based spectrum sensing", In Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2015 7th International Congress on, pp. 35-39, 2015. [bibtex] [pdf] [doi]
[66]	M. Turan, M. Oner, H. A. Çırpan, "Space Time Block Code classification for MIMO signals exploiting cyclostationarity", In IEEE International Conference on Communications, vol. 2015-September, pp. 4996-5001, 2015. [bibtex] [pdf] [doi]
2014
[65]	Ö.F. Gemici, I. Hokelek, H. A. Çırpan, "GA based multi-objective LTE scheduler", In 2014 1st International Workshop on Cognitive Cellular Systems, CCS 2014, 2014. [bibtex] [pdf] [doi]
[64]	G. Coskun, H. A. Çırpan I. Hokelek and, "Energy efficient handover in hetnets using IEEE 802.21", In Proceedings - IEEE International Conference on Distributed Computing in Sensor Systems, DCOSS 2014, pp. 349-353, 2014. [bibtex] [pdf] [doi]
[63]	M. Başaran, S. Erkucuk, H. A. Çırpan, "Achievable performance of Bayesian compressive sensing based spectrum sensing", In Proceedings - IEEE International Conference on Ultra-Wideband, pp. 86-90, 2014. [bibtex] [pdf] [doi]
[62]	H.A. Akyildiz, B. Akkuzu, I. Hökelek, H.A. Çırpan, "LTE downlink scheduler with reconfigurable traffic prioritization", In 2014 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2014, pp. 58-62, 2014. [bibtex] [pdf] [doi]
2013
[61]	T. Mert, O. Kaya, H. A. Çırpan, "Jointly optimal chunk and power allocation in uplink SC-FDMA", In IEEE International Conference on Communications, pp. 3393-3397, 2013. [bibtex] [pdf] [doi]
[60]	O.F.Gemici, I. Hokelek, H. A. Çırpan, "Trade-off analysis of QoS-aware configurable LTE downlink schedulers", In 2013 20th International Conference on Telecommunications, ICT 2013, 2013. [bibtex] [pdf] [doi]
2012
[59]	M. Özgör, S. Erküçük, H. A. Çırpan, "Bayesian compressive sensing for ultra-wideband channel models", In 2012 35th International Conference on Telecommunications and Signal Processing, TSP 2012 - Proceedings, pp. 320-324, 2012. [bibtex] [pdf] [doi]
2011
[58]	Ö. Çetin, B. Karakaya, H. A. Çırpan, "Low complexity channel estimation for 3GPP LTE downlink MIMO OFDM systems", In IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference, pp. 1441-1444, 2011. [bibtex] [pdf] [doi]
[57]	H. A. Çırpan and H. Arslan M. Karabacak, "An efficient modulation identification algorithm without constellation map knowledge", In 2011 IEEE Radio and Wireless Week, RWW 2011 - 2011 IEEE Radio and Wireless Symposium, RWS 2011, pp. 146-149, 2011. [bibtex] [pdf] [doi]
[56]	M. Başaran, S. Erküçük, H. A. Çırpan, "The effect of channel models on compressed sensing based UWB channel estimation", In Proceedings - IEEE International Conference on Ultra-Wideband, pp. 375-379, 2011. [bibtex] [pdf] [doi]
[55]	E. Aydin, H. A. Çırpan, "Bayesian-based iterative blind joint data detection, code delay and channel estimation for DS-CDMA systems in multipath environments", In IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference, pp. 1413-1417, 2011. [bibtex] [pdf] [doi]
[54]	E. Aydin, H. A. Çırpan, "SMC-based iterative joint MUD data detection, code delay and multipath estimation in DS-CDMA systems", In ELECO 2011 - 7th International Conference on Electrical and Electronics Engineering, pp. II274-II278, 2011. [bibtex] [pdf]
2010
[53]	B. Karakaya, H.A. Çırpan, H. Arslan, A. Can, "Slepian based channel interpolation for LTE uplink system with high mobility", In 2010 IEEE Globecom Workshops, GC'10, pp. 1307-1311, 2010. [bibtex] [pdf] [doi]
[52]	M. Karabacak, H. A. Çırpan, H. Arslan, "Adaptive pilot based modulation identification and channel estimation for OFDM systems", In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, pp. 730-735, 2010. [bibtex] [pdf] [doi]
2009
[51]	I. Güvenç, S. Tombaz, M.E. Şahin, H. Arslan, H. A. Çırpan, "ICI-minimizing blind uplink time synchronization for OFDMA-based cognitive radio systems", In GLOBECOM - IEEE Global Telecommunications Conference, 2009. [bibtex] [pdf] [doi]
2008
[50]	B. Karakaya, H. Arslan, H.A. Çırpan, "Channel estimation for LTE uplink in high Doppler spread", In IEEE Wireless Communications and Networking Conference, WCNC, pp. 1126-1130, 2008. [bibtex] [pdf]
2007
[49]	Ö. Özfidan, H.A. Çırpan, U. Bayazit, "Cluster scheduling in range only tracking", In ISSPIT 2007 - 2007 IEEE International Symposium on Signal Processing and Information Technology, pp. 704-709, 2007. [bibtex] [pdf] [doi]
[48]	Ö. Özfidan, U. Bayazit, H.A. Çırpan, "Cluster based sensor scheduling in a target tracking application with particle filtering", In IEEE International Symposium on Industrial Electronics, pp. 1741-1746, 2007. [bibtex] [pdf] [doi]
[47]	S. Çekli, E. Çekli, N. Kabaoglu, H.A. Çırpan, "EM-based recursive tracking algorithm for near-field moving sources", In IEEE Intelligent Vehicles Symposium, Proceedings, pp. 381-385, 2007. [bibtex] [pdf]
[46]	Ozgur Ozfidan, Hakan A. Çırpan, Ulug Bayazit, Azime Can, "Cluster Management in Bearing-Only Tracking", In 5th Intl. Conf. on Electrical and Electronics Engr.,(ELECO), 2007. [bibtex] [pdf]
[45]	E. Panayırcı, H. Dogan, H.A. Çırpan, B.H. Fleury, "Joint data detection and channel estimation for uplinkmc-CDMA systems over frequency selective channels", In Lecture Notes in Electrical Engineering, vol. 1 LNEE, pp. 397-406, 2007. [bibtex] [pdf]
[44]	E. Panayırcı, H. Dogan, H.A. Çırpan, B.H. Fleury, "An efficient joint data detection and channel estimation technique for uplink MC-CDMA systems based on SAGE algorithm", In 2007 16th IST Mobile and Wireless Communications Summit, 2007. [bibtex] [pdf] [doi]
[43]	B. Karakaya, H.A. Çırpan, E. Panayırcı, "Channel estimation for MIMO-OFDM systems in fixed broadband wireless applications", In 2007 9th International Symposium on Signal Processing and its Applications, ISSPA 2007, Proceedings, 2007. [bibtex] [pdf] [doi]
[42]	H. Dogan, E. Panayırcı, H.A. Çırpan, "Iterative channel estimation techniques for uplink MC-CDMA systems", In ISSPIT 2007 - 2007 IEEE International Symposium on Signal Processing and Information Technology, pp. 302-306, 2007. [bibtex] [pdf] [doi]
[41]	H. Dogan, E. Panayırcı, H.A. Çırpan, "EM-based MAP channel estimation and data detection for downlink MC-CDMA systems", In IEEE Wireless Communications and Networking Conference, WCNC, pp. 227-231, 2007. [bibtex] [pdf] [doi]
2006
[40]	E. Panayırcı, H.A. Çırpan, M. Moeneclaey, N. Noels, "Blind phase noise estimation in OFDM systems by sequential Monte Carlo method", In Multi-Carrier Spread-Spectrum - Proceedings from the 5th International Workshop, pp. 483-490, 2006. [bibtex] [pdf]
[39]	E. Panayırcı, H.A. Çırpan, M. Moeneclaey, N. Noels, "Blind data detection in the presence of PLL phase noise by sequential Monte Carlo method", In IEEE International Conference on Communications, vol. 7, pp. 3202-3206, 2006. [bibtex] [pdf] [doi]
[38]	E. Panayırcı, H.A. Çırpan, M. Moeneclaey, N. Noels, "Blind phase noise estimation and data detection based on SMC technique and unscented filtering", In European Signal Processing Conference, 2006. [bibtex] [pdf]
[37]	S. Ozer, H.A. Çırpan, N. Kabaoglu, "Support vector regression for surveillance purposes", In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 4105 LNCS, pp. 442-449, 2006. [bibtex] [pdf]
2005
[36]	H. Şenol, H.A. Çırpan, E. Panayırcı, "Frequency selective fading channel estimation in OFDM systems using KL expansion", In 13th European Signal Processing Conference, EUSIPCO 2005, 2005. [bibtex] [pdf]
[35]	Habib Şenol, Hakan A. Çırpan, Erdal Panayırcı, Mesut Cevik, "Low-Complexity MMSE Channel Estimator for Space Time Coded OFDM Systems with Transmitter Diversity", In ELECO 2005, 2005. [bibtex] [pdf]
[34]	Erdal Panayırcı, Hakan A. Çırpan, Marc Moeneclaey, "A sequential Monte Carlo method for blind phase noise estimation and data detection", In Signal Processing Conference, 2005 13th European, pp. , 2005. [bibtex] [pdf]
2004
[33]	H. Şenol, H.A. Çırpan, E. Panayırcı, "Pilot-aided bayesian MMSE channel estimation for OFDM systems: Algorithm and performance analysis", In GLOBECOM - IEEE Global Telecommunications Conference, vol. 4, pp. 2361-2365, 2004. [bibtex] [pdf]
[32]	Habib Şenol, Hakan A. Çırpan, Erdal Panayırcı, "Pilot-aided Bayesian MMSE channel estimation for OFDM systems: algorithm and performance analysis", In Global Telecommunications Conference, 2004. GLOBECOM'04. IEEE, vol. 4, pp. 2361–2365, 2004. [bibtex]
[31]	N. Kabaog̃lu, H.A. Çırpan, S. Paker, "Unconditional maximum likelihood approach for localization of near-field sources in 3-D space", In Proceedings of the Fourth IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2004, pp. 233-237, 2004. [bibtex] [pdf]
2003
[30]	Hakan A. Çırpan, Erdal Panayırcı, Hakan Dogan, "Iterative Channel Estimation Approach for Space-Frequency Coded OFDM Systems with Transmitter Diversity", In Fourth International Workshop, Germany, 2003. [bibtex]
[29]	Habib Şenol, Hakan A. Çırpan, Erdal Panayırcı, "MMSE Estimation Approach for Karhunen-Loeve Expansion Coefficients of Multipath Channel in OFDM", In Sixth Baiona Workshop on Signal Processing in Communications, Baiona, İspanya, 2003. [bibtex]
[28]	Nihat Kabaoglu, Hakan A. Çırpan, Selçuk Paker, "Performance Analysis of Maximum Likelihood 3-D Source Localization Algorithm", In ELECO’03 Third International Conference on Electrical and Electronics Engineering, Bursa, Türkiye, 2003. [bibtex]
[27]	Habib Şenol, Hakan A. Çırpan, Erdal Panayırcı, "Adaptive MMSE channel estimation in OFDM systems", In ELECO’03 Third International Conference on Electrical and Electronics Engineering, Bursa, Türkiye, 2003. [bibtex]
[26]	Erdal Panayırcı, Hakan A. Çırpan, Hakan Dogan, "Maximum Aposteriori Channel Estimation for Space Frequency Block-Coded OFDM systems", In ELECO’03 Third International Conference on Electrical and Electronics Engineering, Bursa, Türkiye, 2003. [bibtex]
[25]	N. Kabaoglu, H.A. Çırpan, E. Çekli, S. Paker, "Maximum likelihood 3-D near-field source localization using the em algorithm", In Proceedings - IEEE Symposium on Computers and Communications, pp. 492-497, 2003. [bibtex] [pdf] [doi]
[24]	Mesut Çevik, Adnan Şen, Hakan A. Çırpan, "Combined Adaptive Receiver for OFDM Systems", In International Conference on Signal Processing (ICSP-2003), Çanakkkale, Turkey, 2003. [bibtex]
[23]	Mesut Çevik, Hakan A. Çırpan, Erdal Panayırcı, "Unconditional Maximum Likelihood Approach for OFDM Channel Estimation", In ELECO’03 Third International Conference on Electrical and Electronics Engineering, Bursa, Türkiye, 2003. [bibtex]
2002
[22]	H.A. Çırpan, E. Panayırcı, "Blind channel estimation for space-time coding systems with Baum-Welch algorithm", In IEEE International Conference on Communications, vol. 3, pp. 1579-1583, 2002. [bibtex] [pdf]
[21]	E. Panayırcı, H.A. Çırpan, "Channel estimation for space-time block coded OFDM systems in the presence of multipath fading", In Conference Record / IEEE Global Telecommunications Conference, vol. 2, pp. 1157-1161, 2002. [bibtex] [pdf]
[20]	Adnan Şen, Hakan A. Çırpan, Erdal Panayırcı, "Joint Channel Tracking and Symbol Detection for OFDM Systems with Kalman Filtering", In 7.International OFDM-Workshop 2002, Hamburg, Germany, 2002. [bibtex]
[19]	Adnan Şen, Hakan A. Çırpan, Erdal Panayırcı, "Joint Channel Tracking and Symbol Detection for OFDM Systems with Kalman Filtering", In 7.International OFDM-Workshop 2002, Hamburg, Germany, 2002. [bibtex]
2001
[18]	Hakan A. Çırpan, Erdal Panayırcı, Erdinç Çekli, "Blind Maximum Likelihood Channel Estimation for Space-Time Coding Systems", In ELECO’01 Second International Conference on Electrical and Electronics Engineering, Bursa, Türkiye, 2001. [bibtex] [pdf]
[17]	Erdinç Çekli, Hakan A. Çırpan, Erdogan Dilaveroglu, "Cramer rao bounds for direction of arrival and range estimation of near field sources", In ECCTD 01-European conference on circuit theory and design, vol. 3, pp. 105–108, 2001. [bibtex]
[16]	E. Çekli, H.A. Çırpan, "Unconditional maximum likelihood approach for near-field source localization", In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems, vol. 2, pp. 753-756, 2001. [bibtex] [pdf]
[15]	Erdal Panayırcı, Hakan A. Çırpan, "Maximum A Posteriori Multipath Fading Channel Estimation for OFDM Systems", In ISCIS-2001 International Symposium on Computer and Information Sciences, 2001. [bibtex]
[14]	Erdal Panayırcı, Hakan A. Çırpan, "A Non-Data Aided EM -Based Channel Estimation for OFDM Systems with Time-Varying Fading Channels", In Third International Workshop on Multi-Carrier Spread-Spectrum(MCSS2001) and Related Topics, Oberpfaffenhofen, Germany, 2001. [bibtex]
[13]	Erdinç Çekli, Hakan A. Çırpan, "Cramer-Rao Bounds for the Near-Field Source Parameters", In ELECO’01 Second International Conference on Electrical and Electronics Engineering, Bursa, Turkey, 2001. [bibtex]
[12]	E. Celcli, H.A. Çırpan, "Deterministic maximum likelihood method for the localization of near-field sources:Algorithm and performance analysis", In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems, vol. 2, pp. 1077-1080, 2001. [bibtex] [pdf]
2000
[11]	Hakan A. Çırpan, Yücel Türker, Erdinç Çekli, "Stochastic Approach for Blind Estimation of Multiple Co-Channel Signals Received at an Antenna Array", In IEEE Norsig Signal Processing Symposium, Norrkoping, Sweden, 2000. [bibtex]
[10]	Hakan A. Çırpan, Erdinç Çekli, "Deterministic Maximum Likelihood Method for the Localization of Near-Field Sources", In First Balkan Conference on Signal Processing and Communications, İstanbul, Turkey, 2000. [bibtex]
1999
[9]	Hakan A. Çırpan, Michail K. Tsatsanis, "Maximum Likelihood Estimation of Channels Excited by Convolutionally Coded Inputs", In Conference on Information Sciences and Systems, John Hopkins University Baltimore (CISS’97), USA, 1999. [bibtex]
[8]	Hakan A. Çırpan, Osman N. Uçan, "Blind Equalization of Quadrature Partial Response-Trellis Coded Modulated Signals in Rician Fading", In International Workshop on Mobile Communications, Crete, Greece, 1999. [bibtex]
[7]	Osman N. Uçan, Hakan A. Çırpan, "Trellis Coded Quantization/Modulation over Rician Fading Channel", In ELECO’99 International Conference on Electrical and Electronics Engineering, Bursa, Turkey, 1999. [bibtex]
[6]	K. Eren, E. Öztürk., H.A. Çırpan, "Bayesian Learning Approach for Sparse Channel Estimation in IEEE 802.11p Basedd V2V Communication Systems", In 9th International Conference on Technical and Physical Problems of Electrical Engineering, 1999. [bibtex]
1998
[5]	Hakan A. Çırpan, Michail K. Tsatsanis, "Stochastic maximum likelihood methods for semi-blind channel equalization", In Conference Record of the Asilomar Conference on Signals, Systems and Computers, vol. 2, pp. 1629-1632, 1998. [bibtex] [pdf]
1997
[4]	Hakan A. Çırpan, Michail K. Tsatsanis, "Maximum likelihood blind channel estimation in the presence of frequency shifts", In Conference Record of the Asilomar Conference on Signals, Systems and Computers, vol. 1, pp. 713-717, 1997. [bibtex] [pdf]
[3]	Hakan A. Çırpan, Michail K. Tsatsanis, "Chip interleaving in direct sequence CDMA systems", In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 5, pp. 3877-3880, 1997. [bibtex] [pdf]
[2]	Hakan A. Çırpan, Michail K. Tsatsanis, "Blind receivers for nonlinearly modulated signals in multipath", In IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC, pp. 149-152, 1997. [bibtex] [pdf]
1996
[1]	Michail K. Tsatsanis, Hakan A. Çırpan, "Blind identification of nonlinear channels excited by discrete alphabet inputs", In IEEE Signal Processing Workshop on Statistical Signal and Array Processing, SSAP, pp. 176-179, 1996. [bibtex] [pdf]

21 results

2021
[21]	A. Kabaci, M. Basaran, H.A. Cirpan, "The effect of channel estimation error on the performance of spatial media-based modulation systems [Kanal kestirim hatasinin uzaysal ortam tabanli modülasyon sistem performansina etkisi]", In SIU 2021 - 29th IEEE Conference on Signal Processing and Communications Applications, Proceedings, 2021. [bibtex] [pdf] [doi]
2020
[20]	B. Kaplan, I. Kahraman, A.R. Ekti, S. Yarkan, H.A. Cirpan, "Measurement Based Direction of Arrival Estimation for Frequency Hopping Signals [Frekans Atlamali Sinyaller icin Olcum Tabanli Gelis Acisi Kestirimi]", In 2020 28th Signal Processing and Communications Applications Conference, SIU 2020 - Proceedings, 2020. [bibtex] [pdf] [doi]
2017
[19]	Fatih Kara, Ömer Faruk Gemici, İbrahim Hökelek, Hakan Ali Çırpan, "Aşağı Yönlü Noma Sisteminde Eniyi Güç Paylaşımı", In 25. IEEE Sinyal İşleme ve İletişim Uygulamaları Kurultayı, Antalya, Türkiye, pp. , 2017. [bibtex] [pdf] [doi]
[18]	Hasan Anıl Akyıldız, İbrahim Hökelek, Ece Saygun, Hakan Ali Çırpan, "SDN Ağlar için Akış Yeniden Yönlendirme Tabanlı Trafik Mühendisliği", In 25. IEEE Sinyal İşleme ve İletişim Uygulamaları Kurultayı, Antalya, Türkiye, pp. , 2017. [bibtex] [pdf] [doi]
2016
[17]	S. Çelik, M. Başaran, S. Erküçük, H. A. Çırpan, "Comparison of compressed sensing based algorithms for sparse signal reconstruction", In 2016 24th Signal Processing and Communication Application Conference (SIU), pp. 1441-1444, 2016. [bibtex] [doi]
2014
[16]	M. Turan, M. Oner, H. A. Çırpan, "Space-time block code classification for MIMO signals [MIMO sinyalleri i̧in uzay-zaman blok kodu klasifikasyonu]", In 2014 22nd Signal Processing and Communications Applications Conference, SIU 2014 - Proceedings, pp. 2039-2042, 2014. [bibtex] [pdf] [doi]
[15]	G. Coşkun, I. Hökelek, H. A. Çırpan, "Energy efficient handover between heterogeneous networks using IEEE 802.21 [IEEE 802.21 kullanarak heterojen aglar arasinda enerji verimli el degiştirme]", In 2014 22nd Signal Processing and Communications Applications Conference, SIU 2014 - Proceedings, pp. 674-677, 2014. [bibtex] [pdf] [doi]
[14]	H. A. Akyildiz, B. Akkuzu, I. Hokelek, H.A. Çırpan, "A QoS-aware reconfigurable LTE MAC scheduler [Servis kalitesine duyarli yeniden yapilandirilabilir lte mac çizelgeleyici]", In 2014 22nd Signal Processing and Communications Applications Conference, SIU 2014 - Proceedings, pp. 1467-1470, 2014. [bibtex] [pdf] [doi]
2011
[13]	M. Başaran, S. Erküçük, H. A. Çırpan, "The effect of channel resolution on compressed sensing based Ultra-Wideband channel estimation [Kanal çözünürlüg ünün sikiştirilmiş algilama tabanli ultra geni̇ş bantli kanal kesti̇ri̇mi̇ne etki̇si̇]", In 2011 IEEE 19th Signal Processing and Communications Applications Conference, SIU 2011, pp. 367-370, 2011. [bibtex] [pdf] [doi]
[12]	S. O. Ata, H. A. Çırpan, "Signal detection based on linear trend in the noise-originated eigenvalues of the correlation matrix for Cognitive Radio [Bilişsel Radyo için özilişki matrisinin gürültü-kaynakli özdegerlerinin dogrusal degişimine dayah i̇şaret sezimi]", In 2011 IEEE 19th Signal Processing and Communications Applications Conference, SIU 2011, pp. 494-497, 2011. [bibtex] [pdf] [doi]
2010
[11]	Ö. Çetin, B. Karakaya, H.A. Çırpan, "Channel estimation for 3GPP LTE MIMO-OFDMA systems [3GPP LTE MIMO-OFDMA sistemlerde kanal kestirimi]", In SIU 2010 - IEEE 18th Signal Processing and Communications Applications Conference, pp. 129-132, 2010. [bibtex] [pdf] [doi]
[10]	B. Karakaya, H. A. Çırpan, H Arslan, "Leakage reduction in DFT-based channel estimation for LTE Uplink [LTE Uplink için DFT-tabanli kanal kestirimcide sizma azaltimi]", In SIU 2010 - IEEE 18th Signal Processing and Communications Applications Conference, pp. 137-140, 2010. [bibtex] [pdf] [doi]
2009
[9]	S. Çekli, H. A. Çırpan, "Near field broadband acoustic source localization with observation delay compensated MUSIC algorithm [Genişbantli temel bant akustik kaynagin gözlem gecikme telafili MUSIC algoritmasi ile yakin alan konumlandirmasi]", In 2009 IEEE 17th Signal Processing and Communications Applications Conference, SIU 2009, pp. 5-8, 2009. [bibtex] [pdf] [doi]
2008
[8]	S. Çekli, H.A. Çırpan, "Wideband source localization and tracking with observation shifted maximum likelihood estimation method [Gözlem kaymali en büyük olabilirlik kestirim yöntemi i̇le hareketli genişbant kaynagin konum kestirimi ve takibi]", In 2008 IEEE 16th Signal Processing, Communication and Applications Conference, SIU, 2008. [bibtex] [pdf] [doi]
2007
[7]	S. Çekli, E. Çekli, H.A. Çırpan, "Location estimation of wideband sources with expectation maximization algorithm [Beklenti/en büyükleme algoritmasi ile genişbant kaynagin konumunun kestirimi]", In 2007 IEEE 15th Signal Processing and Communications Applications, SIU, 2007. [bibtex] [pdf] [doi]
[6]	H. Dogar, H.A. Çırpan, E. Panayırcı, "EM-MAP based initialization of PIC receiver for downlink MC-CDMA systems [Aşagi link MC-CDMA sistemlerinde kullanilan PIC ahcinin EM-MAP tabanli olarak i̇lklendirilmesi]", In 2007 IEEE 15th Signal Processing and Communications Applications, SIU, 2007. [bibtex] [pdf] [doi]
[5]	H. Dogan, E. Panayırcı, H.A. Çırpan, B.H. Fleury, "EM-based joint data detection and channel estimation for uplink MC-CDMA systems over frequency selective channels [Frekans seçici kanallarda çalişan yukari link MC-CDMA sistemleri için em tabanh birleşik bilgi sezim ve kanal kestirim yöntemi]", In 2007 IEEE 15th Signal Processing and Communications Applications, SIU, 2007. [bibtex] [pdf] [doi]
2006
[4]	S. Özer, H.A. Çırpan, N. Kabaoglu, "Support vector machines based target tracking techniques [Destek vektör makineleri tabanli hedef takip yöntemleri]", In 2006 IEEE 14th Signal Processing and Communications Applications Conference, vol. 2006, 2006. [bibtex] [pdf] [doi]
[3]	S. Çekli, Çekli E. , N. Kabaoglu, H.A. Çırpan, "Near field parameter estimation of moving sources with recursive expectation maximization algorithm [Yinelemeli beklenti/en büyükleme algoritmasi ile hareketli kaynaklarin yakin-alan parametrelerinin kestirimi]", In 2006 IEEE 14th Signal Processing and Communications Applications Conference, vol. 2006, 2006. [bibtex] [pdf] [doi]
[2]	B. Karakaya, H.A. Çırpan, E. Panayırcı, "Channel estimation for MIMO-OFDM in fixed broadband wireless applications [Sabit genişbanth telsiz uygulamalarinda çgçç- dfbç için kanal kestirimi]", In 2006 IEEE 14th Signal Processing and Communications Applications Conference, vol. 2006, 2006. [bibtex] [pdf] [doi]
[1]	H. Dogan, H.A. Çırpan, E. Panayırcı, "EM based MAP channel estimation for turbo/convolutional coded SFBC/STBC-OFDM systems [Turbo/katlamali kodlanmiş SFBC/STBC-OFDM sistemlerinde yinelemeli kanal kestirimi]", In 2006 IEEE 14th Signal Processing and Communications Applications Conference, vol. 2006, 2006. [bibtex] [pdf] [doi]