ibrahim altunbaş resim

İbrahim Altunbaş


Prof. Dr.
Istanbul Technical University
Electronics and Communication Engineering Department

A. INTERNATIONAL JOURNAL PAPERS

  • M. Can, İ. Altunbaş and E. Başar, "MBM-aided uplink cooperative NOMA with hardware impairments and imperfect CSI", accepted for publication in IEEE Communications Letters.
  • İ. Yıldırım, E. Başar and İ. Altunbaş, "Coordinate interleaved orthogonal design with media-based modulation", IEEE Transactions on Vehicular Technology., vol. 70, no. 3, pp. 2867-2871, March 2021.
  • E. Erdoğan, İ. Altunbaş, G. Karabulut Kurt, M. Bellemare, G. Lamontagne and H. Yanıkömeroğlu, "Site diversity in downlink optical satellite networks through ground station selection", IEEE Access, vol. 9, pp. 31179-31190, February 2021.
  • E. Erdoğan, İ. Altunbaş, N. Kabaoğlu and H. Yanıkömeroğlu, "A cognitive radio enabled RF/FSO communication model for aerial relay networks: Possible configurations and opportunities", IEEE Open Journal of Vehicular Technology, vol. 2, pp. 45-53, 2021.
  • Z. Yiğit, E. Başar and İ. Altunbaş, "Low complexity adaptation for reconfigurable intelligence surface-based MIMO systems", IEEE Communications Letters, vol. 24, no. 12, pp. 2946-2950, December 2020.
  • M. Can, İ. Altunbaş and E. Başar, "NOMA-based downlink relaying with media-based modulation", Physical Communication, vol. 41, August 2020.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Cooperative space shift keying-media based modulation with hybrid relaying", IEEE Systems Journal, vol. 14, no. 1, pp. 500-509, March 2020.
  • E. Erdoğan, N. Kabaoğlu, İ. Altunbaş and H. Yanıkömeroğlu, "On the error probability of cognitive RF-FSO relay networks over Rayleigh/EW fading channels with primary-secondary interference", IEEE Photonics Journal, vol. 12, no. 1, February 2020.
  • S.Ö. Ata and İ. Altunbaş, "STTC design for vehicular communication systems employing fixed-gain AF PLNC over cascaded fading channels", IET Communications, vol. 12, iss. 11, pp. 1283-1289, July 2018.
  • A. Koç, İ. Altunbaş and E. Başar, "Two-way full-duplex spatial modulation systems with wireless powered AF relaying", IEEE Wireless Communications Letters, vol. 7, no. 3, pp. 444-447, June 2018.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Space shift keying for multi-hop multi-branch networks", Physical Communication, vol. 27, pp. 161-169, April 2018.
  • İ. Yıldırım, E. Başar and İ. Altunbaş, "Quadrature channel modulation", IEEE Wireless Communications Letters, vol. 6, no. 6, pp. 790-793, December 2017.
  • A. Koç, İ. Altunbaş and A. Yongaçoğlu, "Relay selection in two-way full-duplex relay networks over Nakagami-m fading channels", Annals of Telecommunications, vol. 72, iss. 11-12, pp. 731-742, December 2017.
  • Ö. Öztoprak, F. Yarkın, İ. Altunbaş and E. Başar, "Performance analysis of space shift keying for AF relaying with relay selection", AEÜ - Int. Journal of Electronics and Communications, vol. 81, pp. 74-82, November 2017.
  • E. Başar and İ. Altunbaş, "Space-time channel modulation", IEEE Trans. Vehicular Technology, vol. 66, no. 8, pp. 7609-7614, August 2017.
  • A. Koç, İ. Altunbaş and A. Yongaçoğlu, "Outage performance of fixed-gain and variable-gain AF full-duplex relaying in non-identical Nakagami-m fading channels", EURASIP Journal on Wireless Communications and Networking, (2017) 2017:110.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Source transmit antenna selection for space shift keying with cooperative relays", IEEE Communications Letters, vol. 21, no. 5, pp. 1211-1214, May 2017.
  • S.Ö. Ata and İ. Altunbaş, "Joint relay and antenna selection in MIMO PLNC inter-vehicular communication systems over cascaded fading channels", Wireless Personal Communications, vol. 92, iss. 3, pp. 901-923, February 2017.
  • S. Tedik Başaran, G. Karabulut Kurt, M. Uysal and İ. Altunbaş, "A tutorial on network coded cooperation", IEEE Communications Surveys & Tutorials, vol. 18, no. 4, Fourth Quarter 2016.
  • S.Ö. Ata and İ. Altunbaş, "Fixed-gain AF PLNC over cascaded Nakagami-m fading channels for vehicular communications", AEÜ - Int. Journal of Electronics and Communications, vol. 70, iss. 4, pp. 510-516, April 2016.
  • A. Karademir and İ. Altunbaş, "SER performance of cooperative systems with the Nth best path selection in generalized-K channels", Journal of the Franklin Institute, vol. 352, iss. 11, pp. 4682-4697, November 2015.
  • A.S. Demiroğlu, İ. Altunbaş and M.E. Çelebi, "Non-orthogonal amplify and forward relay selection systems with distributed space-time trellis coded continuous phase modulation", Wireless Personal Communications, vol. 84, iss. 2, pp. 1209-1225, September 2015.
  • A.S. Demiroğlu and İ. Altunbaş, "Distributed space-time trellis codes with continuous phase modulation for amplify & forward relaying", IET Communications, vol. 7, iss. 2, pp. 110-118, 2013.
  • A.F. Coşkun, O. Kucur and İ. Altunbaş, "Performance analysis of Alamouti scheme with transmit antenna selection in non-identical Nakagami-m fading channels", Wireless Communications and Mobile Computing, vol. 13, iss. 7, pp. 671-680, 2013.
  • İ. Altunbaş, A. Yılmaz, Ş.S. Kucur and O. Kucur, "Performance analysis of dual-hop fixed-gain AF relaying systems with OSTBC over Nakagami-m fading channels", AEÜ - Int. Journal of Electronics and Communications, vol. 66, iss. 10, pp. 841-846, 2012.
  • A.F. Coşkun, O. Kucur and İ. Altunbaş, "Performance analysis of space-time block codes with transmit antenna selection in Nakagami-m fading channels", Wireless Personal Communications, vol. 67, iss. 3, pp. 557-571, December 2012.
  • İ.L. Karaevli, G. Karabulut and İ. Altunbaş, "Analysis of cooperative MIMO transmission system with transmit antenna selection and selection combining", Wireless Communications and Mobile Computing, vol. 12, iss. 14, pp. 1266-1275, 2012.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Moment generating function-based performance evaluation of amplify-and-forward relaying in N*Nakagami fading channels", IET Communications, vol. 5, iss. 3, pp. 253-263, 2011.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Novel distributed space-time trellis codes for relay systems over cascaded Rayleigh fading", IEEE Communications Letters, vol. 14, no. 12, pp. 1140-1142, December 2010.
  • Ö. Özdemir, İ. Altunbaş and M. Bayrak, "Performance of super-orthogonal space-time trellis codes with transmit antenna selection", IET Communications, vol. 4, iss. 16, pp. 1942-1951, 2010.
  • H. İlhan, M. Uysal and İ. Altunbaş, "Cooperative diversity for intervehicular communication: Performance analysis and optimization", IEEE Trans. Vehicular Technology, vol. 58, no. 7, pp. 3301-3310, September 2009.
  • S. Özyurt, O. Kucur and İ. Altunbaş, "Error performance of rotated phase shift keying modulation over fading channels", Wireless Personal Communications, vol. 43, pp. 1453-1463, December 2007.
  • İ. Altunbaş, "Performance of serially concatenated coding schemes for MIMO systems", AEÜ - Int. Journal of Electronics and Communications, vol. 61, no. 1, pp.1-9, January 2007.
  • İ. Altunbaş, "Space-time trellis codes for MSK", Journal of Computers and Electrical Engineering, vol. 31, issues 4-5, pp. 263-271, June-July 2005.
  • K.R. Narayanan, İ. Altunbaş and R. Narayanaswami, "Design of serial concatenated MSK schemes based on density evolution", IEEE Trans. Communications, vol. 51, no. 8, pp. 1283-1295, August 2003.
  • İ. Altunbaş and A. Yongaçoğlu, "Error performance of serially concatenated space-time coding", Journal of Communications and Networks, JCN, vol. 5, no. 2, pp. 135-140, June 2003.
  • İ. Altunbaş and K.R. Narayanan, "Serial concatenated coding scheme with minimum shift keying", IEE Electronics Letters, vol. 37, no. 23, pp. 1393-1395, November 2001.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coded CPFSK systems for AWGN and fading channels", IEEE Trans. Communications, vol. 48, no. 5, pp. 764-773, May 2000.
  • İ. Altunbaş and Ü. Aygölü, "Multiamplitude minimum shift keying trellis codes for AWGN and fading channels", AEÜ - Int. Journal of Electronics and Communications, vol. 51, no. 2, pp.63-72, March 1997.

B. BOOK CHAPTER

  • S. Tedik Başaran, A.R. Heidarpour, S. Gökçeli, G. Karabulut Kurt, M. Uysal and İ. Altunbaş, "Implementation of network coding in wireless systems", in Network Coding and Subspace Designs, pp. 295-317, Editors: M. Greferath, M. O. Pavcevic, N. Silberstein, M.A. Vazquez-Castro, Springer, 2018.

C. INTERNATIONAL CONFERENCE PAPERS

  • A. Kaplan, İ. Altunbaş, G. Karabulut Kurt, M. Kesal and D. Küçükyavuz, "OFDM-IM performance evaluation under jamming attack", International Telecomunication Networks and Applications Conference, ITNAC 2020, Melbourne, Australia, November 2020 (Virtual).
  • A. Kaplan, M. Can, İ. Altunbaş, G. Karabulut Kurt and D. Küçükyavuz, "LDPC coded OFDM-IM performance evaluation under jamming attack", International Conference on Information and Communication Technology Convergence, ICTC 2020, Jeju Island, Korea, October 2020 (Virtual) (This paper received "Excellent Paper Award").
  • O. Erturk, K. Bölat, A.D. Başkan and İ. Altunbaş, "A media-based modulation communication system implementation using universal software radio peripheral", 27th Telecommunications Forum, TELFOR 2019, Belgrade, Serbia, November 2019.
  • Z. Yiğit, E. Başar and İ. Altunbaş, "Circular space-time block code design for ultra-reliable index modulation schemes", IEEE PIMRC 2019, Istanbul, Turkey, September 2019.
  • İ. Yıldırım, E. Başar and İ. Altunbaş, "Fractional media-based modulation with golden angle modulation", Advances 5G Radio Access Network Features and Performance (ARANFP) Workshop, IEEE WCNC 2019, Marrakech, Morocco, April 2019.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Two-way space shift keying with relay selection", 25th Telecommunications Forum, TELFOR 2017, Belgrade, Serbia, November 2017.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Multi-hop space shift keying with path selection", RTUWO 2017: Advances in Wireless and Optical Communications, Riga, Latvia, November 2017.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Performance analysis of source transmit antenna selection in space shift keying with cooperative amplify-and-forward relaying", RTUWO 2017: Advances in Wireless and Optical Communications, Riga, Latvia, November 2017.
  • A. Koç, İ. Altunbaş and E. Başar, "Space shift keying with full duplex amplify and forward relaying", IEEE Int. Black Sea Conf. on Commun.and Networking, IEEE BlackSeaCom 2017, İstanbul, Turkey, June 2017.
  • R. Khan, İ. Altunbaş and G. Karabulut Kurt, "Channel coded complex field network coding in two-way relay networks", IEEE Int. Black Sea Conf. on Commun.and Networking, IEEE BlackSeaCom 2017, İstanbul, Turkey, June 2017.
  • A. Koç, İ. Altunbaş and B. Yaman, "Unified outage performance analysis of two-way/one-way full-duplex/half-duplex fixed-gain AF relay systems", Int. Conf. on Telecommun., ICT 2017, Limassol, Cyprus, May 2017.
  • A. Koç, İ. Altunbaş and E. Başar, "Full-duplex spatial modulation systems under imperfect channel state information", Int. Conf. on Telecommun., ICT 2017, Limassol, Cyprus, May 2017.
  • R. Khan, İ. Altunbaş and G. Karabulut Kurt, "Enhanced XOR network coding scheme with OFDM for two-way relay networks", 24th Telecommunications Forum, TELFOR 2016, Belgrade, Serbia, November 2016.
  • R. Khan, İ. Altunbaş and G. Karabulut Kurt, "Channel coded complex field network coding with OFDM in wireless networks", RTUWO 2016: Advances in Wireless and Optical Communications, Riga, Latvia, November 2016.
  • F. Yarkın and İ. Altunbaş, "Outage performance of spatial modulation with transmit antenna selection over Nakagami-m fading channels with arbitrary m", 8th International Congress on Ultra Modern Telecommunications & Control Systems, ICUMT 2016, Lisbon, Portugal, October 2016.
  • R. Khan, G. Karabulut Kurt and İ. Altunbaş, "Complex field network coding with OFDM in distributed wireless networks", Int. Conf. on Wireless Networks and Embedded Systems, WECON 2016, Rajpura, Punjab, India, October 2016.
  • A. Koç, İ. Altunbaş and A. Yongaçoğlu, "Outage probability of two-way full-duplex AF relay systems over Nakagami-m fading channels", IEEE Vehicular Technology Conference, VTC-Fall, Montreal, Canada, September 2016.
  • İ. Altunbaş, A. Koç and A. Yongaçoğlu, "Outage probability of full-duplex fixed-gain AF relaying in Rayleigh fading channels", Wireless Days Conference, Toulouse, France, March 2016.
  • S.Ö. Ata and İ. Altunbaş, "Relay antenna selection for V2V communications using PLNC over cascaded fading channels", 11th Int. Wireless Communications & Mobile Computing Conference, IWCMC, Dubrovnik, Croatia, August 2015.
  • M. Foruhandeh, M. Uysal, İ. Altunbaş, T. Güven and A. Gerçek, "Optimal choice of transmission parameters for LDPC-coded CPM", IEEE Military Communications Conference, MILCOM'14, Baltimore, Maryland, U.S.A., October 2014.
  • A. Karademir and İ. Altunbaş, "SER of multiple-relay cooperative systems with selection combining in generalized-K channels", 10th Int. Symposium on Wireless Communication Systems, ISWCS, Ilmenau, Germany, August 2013.
  • M.Ç. İlter and İ. Altunbaş, "Physical layer network coding in generalized shadowed fading channels", 9th Int. Symposium on Wireless Communication Systems, ISWCS, Paris, France, August 2012.
  • A.S. Demiroğlu, İ. Altunbaş and M.E. Çelebi, "Distributed space-time 4CPFSK trellis codes for amplify & forward relaying", The Third Int. Conf. on Communication Theory, Reliability, and Quality of Service, CTRQ, Glyfada, Athens, Greece, June 2010.
  • D. Çelik, İ. Altunbaş and Ü. Aygölü, "FSK/PSK modulated coded cooperation systems", The Third Int. Conf. on Communication Theory, Reliability, and Quality of Service, CTRQ, Glyfada, Athens, Greece, June 2010.
  • İ.L. Karaevli, İ. Altunbaş and G. Karabulut, "Performance analysis of cooperative relaying scheme applying TAS/SC", IEEE Symposium on Computers and Communications, ISCC'10, Riccione, Italy, June 2010.
  • A.F. Coşkun, O. Kucur and İ. Altunbaş, "Performance of space-time block codes with transmit antenna selection in Nakagami-m fading channels", European Wireless Conference, EW'10, Lucca, Italy, April 2010.
  • A.S. Demiroğlu, İ. Altunbaş and M. Ertuğrul Çelebi, "Distributed space-time MSK trellis codes for amplify & forward relaying", 17th European Signal Processing Conference, EUSIPCO, Glasgow-Scotland, August 2009.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Optimized amplify-and-forward relaying for vehicular ad-hoc networks", IEEE Vehicular Technology Conference, VTC-Fall, Calgary, Canada, September 2008.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Cooperative diversity for relay-assisted inter-vehicular communication", IEEE Vehicular Technology Conference, VTC-Spring, Singapore, May 2008.
  • Ö. Özdemir, İ. Altunbaş and M. Bayrak, "Error performance of super-orthogonal space-time trellis codes with transmit antenna selection", 14th European Signal Processing Conference, EUSIPCO, Florence, Italy, September 2006.
  • E. Aydın and İ. Altunbaş, "Performance of serially concatenated space-time coding scheme with LDPC code", 15th IST Mobile and Wireless Communications Summit, Myconos, Greece, June 2006.
  • E. Aydın and İ. Altunbaş, "Serial concatenation of LDPC and space-time trellis codes with transmit antenna selection", 13th IEEE Mediterranean Electrotechnical Conference, MELECON, Benalmadena, Spain, May 2006.
  • S. Özyurt, O. Kucur and İ. Altunbaş, "Performance of rotated phase shift keying modulation over Ricean fading channels", 2nd Int. Symposium on Wireless Communication Systems, ISWCS'05, Siena, Italy, September 2005.
  • İ. Altunbaş and A. Yongaçoğlu, "Performance of serially concatenated space-time QPSK systems", IEEE Symposium on Computers and Communications, ISCC'03, pp.271-276, Kemer-Antalya, Turkey, June 30-July 3, 2003.
  • İ. Altunbaş and A. Yongaçoğlu, "Concatenated coding schemes with multiple transmit and receive antennas", Int. Symposium on Wireless Systems and Networks, ISWSN,03, Dhahran, Saudi Arabia, March 2003.
  • K.R. Narayanan, İ. Altunbaş and R. Narayanaswami, "On the design of LDPC codes for MSK", IEEE Int. Global Telecommun. Conf. GLOBECOM'01, pp. 1011-1015, San Antonio, TX, USA, November 2001.
  • A.E. Pusane, Ü. Aygölü and İ. Altunbaş, "Performance analysis of trellis coded MSK in two-ray fading channels", 1st IEEE Balkan Conference on Signal Processing, Communications, Circuit and Systems, Istanbul, Turkey, June 2000.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coding of multiple FFSK", IEEE Int. Symposium on Information Theory, ISIT’97, p.393, Ulm, Germany, June 29-July 4,1997.
  • İ. Altunbaş and Ü. Aygölü, "Design and performance analysis of multilevel coded M-ary CPFSK", Int. Conf. on Telecommun., ICT’96, pp.269-272, Istanbul, Turkey, April 1996.
  • İ. Altunbaş and Ü. Aygölü, "Design of multilevel coded M-ary CPFSK systems with modulation index 1/2", IEEE Int. Global Telecommun. Conf., GLOBECOM’95, pp.644-648, Singapore, November 1995.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coded M-ary CPFSK with modulation index 1/2", Int. Conf. on Advances in Commun. and Control, COMCON 5, pp.504-510, Rethymno, Greece, June 1995.
  • İ. Altunbaş and Ü. Aygölü, "Multiple multiamplitude minimum shift keying trellis codes for AWGN and fading mobile satellite channels", IEEE Int. Conf. on Univ. Per. Commun., ICUPC’94, pp. 199-203, San Diego, USA, September 1994.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coded FSK/PSK modulation", IEEE Int. Conf. on Commun., ICC’94, pp.640-644, New Orleans, USA, May 1994.

D. NATIONAL JOURNAL PAPER

  • A. Koç and İ. Altunbaş, "Performance of full-duplex AF relay selection systems over Nakagami-m channels (In Turkish)", Dokuz Eylul University- Engineering Faculty, Journal of Science and Engineering, vol. 19, no. 57, pp.790-807, September 2017.

E. NATIONAL CONFERENCE PAPERS

  • O. Ertürk, K. Bölat, A.B. Büyükşar, A.D. Başkan and İ. Altunbaş, "Channel measurements and modeling in drone-to-ground communications (In Turkish)", 28th Signal Processing and Communication Applications Conf., SİU'20, Gaziantep, Turkey, October 2020 (Virtual).
  • A. Kaplan, G. Karabulut Kurt, İ. Altunbaş, U. Altun, F. Atay Onat and D. Küçükyavuz, "Impact of channel estimation on the performance of OFDM-IM with barrage jamming (In Turkish)", 28th Signal Processing and Communication Applications Conf., SİU'20, Gaziantep, Turkey, October 2020 (Virtual).
  • M. Can, İ. Altunbaş and E. Başar, "Media-based modulation assisted non-orthogonal multiple access (In Turkish)", 27th Signal Processing and Communication Applications Conf., SİU'19, Sivas, Turkey, April 2019.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Multi-hop space shift keying with partial relay selection (In Turkish)", 26th Signal Processing and Communication Applications Conf., SİU'18, İzmir, Turkey, May 2018.
  • F. Yarkın, İ. Altunbaş and E. Başar, "Error performance analysis of multi-hop space-shift keying with transmit antenna selection (In Turkish)", 25th Signal Processing and Communication Applications Conf., SİU'17, Antalya, Turkey, May 2017.
  • A. Koç, İ. Altunbaş and E. Başar, "Performance analysis of full-duplex spatial-modulated communication systems (In Turkish)", 25th Signal Processing and Communication Applications Conf., SİU'17, Antalya, Turkey, May 2017.
  • S.Ö. Ata and İ. Altunbaş, "Analog network coding over cascaded fast fading Rayleigh channels in the presence of self-interference (In Turkish)", 24th Signal Processing and Communication Applications Conf., SİU'16, Zonguldak, Turkey, May 2016.
  • A. Koç, İ. Altunbaş and A. Yongaçoğlu, "Outage performance of full duplex physical layer network coding systems in Nakagami-m channels (In Turkish)", 24th Signal Processing and Communication Applications Conf., SİU'16, Zonguldak, Turkey, May 2016.
  • F. Yarkın and İ. Altunbaş,"Outage probability of spatial modulation with antenna selection in Nakagami-m channel (In Turkish)", 24th Signal Processing and Communication Applications Conf., SİU'16, Zonguldak, Turkey, May 2016.
  • S.Ö. Ata and İ. Altunbaş, "Relay antenna selection for V2V PLNC system (In Turkish)", 23th Signal Processing and Communication Applications Conf., SİU'15, Malatya, Turkey, May 2015.
  • R. Khan, G. Karabulut Kurt and İ. Altunbaş, "Decoding failure probability of random network coding systems in fading channels", 23th Signal Processing and Communication Applications Conf., SİU'15, Malatya, Turkey, May 2015.
  • S. Tedik Başaran, G. Karabulut Kurt and B. Engin, İ. Altunbaş, "Joint power and subcarrier allocation in OFDMA systems (In Turkish)", 23th Signal Processing and Communication Applications Conf., SİU'15, Malatya, Turkey, May 2015.
  • B. Engin, İ. Altunbaş, S. Tedik Başaran and G. Karabulut Kurt, "Different numbers of subcarrier allocation in OFDMA systems via random bipartite graphs (In Turkish)", 23th Signal Processing and Communication Applications Conf., SİU'15, Malatya, Turkey, May 2015.
  • A. Karademir and İ. Altunbaş, "Error performance of cooperative systems in generalized-K channels (In Turkish)", 21th Signal Processing and Communication Applications Conf., SİU'13, Girne, KKTC, April 2013.
  • M.Ç. İlter and İ. Altunbaş, "Physical layer network coding in the shadowing/fading channels (In Turkish)", 20th Signal Processing and Communication Applications Conf., SİU'12, Fethiye, Muğla, Turkey, April 2012.
  • M. Yağımlı and İ. Altunbaş, "Physical layer network coding with antenna selection (In Turkish)", 20th Signal Processing and Communication Applications Conf., SİU'12, Fethiye, Muğla, Turkey, April 2012.
  • H. İlhan and İ. Altunbaş, "Error performance of distributed turbo coded cooperative systems over cascaded fading channels (In Turkish)", 19th Signal Processing and Communication Applications Conf., SİU'11, Antalya, Turkey, April 2011.
  • Y. Sitti and İ. Altunbaş, "Error performance analysis of cooperative systems with receiver diversity: Effect of shadowing in source-destination link (In Turkish)", 19th Signal Processing and Communication Applications Conf., SİU'11, Antalya, Turkey, April 2011.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Design of distributed space-time trellis code for relay systems over cascaded Nakagami channels (In Turkish)", 18th Signal Processing and Communication Applications Conf., SİU'10, Diyarbakır, Turkey, April 2010.
  • A.F. Coşkun, O. Kucur and İ. Altunbaş, "Performance of Alamouti scheme with transmit antenna selection in non-identical Nakagami fading channels (In Turkish)", 18th Signal Processing and Communication Applications Conf., SİU'10, Diyarbakır, Turkey, April 2010.
  • İ.L. Karaevli, İ. Altunbaş and G. Karabulut, "Error performance of multiple antenna relay system applying transmit antenna selection and selection combining (In Turkish)", 3rd Communication Technologies and Applications Symposium, HABTEKUS'09, İstanbul, Turkey, December 2009.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Performance analysis of relay systems under cascaded Nakagami channels (In Turkish)", 17th Signal Processing and Communication Applications Conf., SİU'09, Antalya, Turkey, April 2009.
  • D. Çelik, İ. Altunbaş and Ü. Aygölü, "Performance improvement in coded cooperation systems using FSK/PSK modulation (In Turkish)", 17th Signal Processing and Communication Applications Conf., SİU’09, Antalya, Turkey, April 2009.
  • İ. Altunbaş, A.S. Demiroğlu and M. Ertuğrul Çelebi, "Distributed space-time MSK trellis codes for relay systems (In Turkish)", 2nd Communication Technologies and Applications Symposium, HABTEKUS'08, İstanbul, Turkey, October 2008.
  • H. İlhan, İ. Altunbaş and M. Uysal, "Performance analysis and optimization of relay-assisted vehicle-to-vehicle (V2V) cooperative communication (In Turkish)", 16th Signal Processing and Communication Applications Conf., SİU’08, Didim, Aydın, Turkey, April 2008 (This paper received "Second Best Student Paper Award").
  • C. Çınar, O. Kucur and İ. Altunbaş, "Space-frequency-time coded OFDM with transmit antenna selection (In Turkish)", 1st Communication Technologies and Applications Symposium, HABTEKUS'07, İstanbul, Turkey, November 2007.
  • H. İlhan and İ. Altunbaş, "Relay cooperative systems with improved super-orthogonal space-time trellis codes (In Turkish)", 15th Signal Processing and Communication Applications Conf., SİU’07, Eskişehir, Turkey, June 2007.
  • H. İlhan and İ. Altunbaş, "Error performance analysis of cooperative diversity systems employing conventional space-time codes (In Turkish)", ELECO 2006, Bursa, Turkey, December 2006.
  • E. Aydın and İ. Altunbaş, "Serially concatenated LDPC and space-time trellis codes with transmit antenna selection (In Turkish)", 14th Signal Processing and Communication Applications Conf., SİU’06, Antalya, Turkey, April 2006.
  • A.S. Demiroğlu and İ. Altunbaş, "Space-time trellis codes with asymmetric 4PSK modulations (In Turkish)", 13th Signal Processing and Communication Applications Conf., SİU’05, Kayseri, Turkey, May 2005.
  • Ö. Özdemir, İ. Altunbaş and M. Bayrak, "Super-orthogonal space-time trellis coding with transmit antenna selection (In Turkish)", 13th Signal Processing and Communication Applications Conf., SİU’05, Kayseri, Turkey, May 2005.
  • S. Özyurt, O. Kucur and İ. Altunbaş, " Performance of phase shift keying modulation with rotated signal constellation over Ricean fading channels (In Turkish)", 13th Signal Processing and Communication Applications Conf., SİU’05, Kayseri, Turkey, May 2005.
  • Ö.Oruç, İ. Altunbaş and Ü. Aygölü, "Multilevel super-orthogonal space-time coding (In Turkish)", 12th Signal Processing and Communication Applications Conf., SİU’04, Kuşadası, Aydın, Turkey, April 2004.
  • İ. Altunbaş and A. Yongaçoğlu, "Error performance of serially concatenated space-time codes (In Turkish)", 11th Signal Processing and Communication Applications Conf., SİU’03, pp.446-449, Sarıyer, İstanbul, Turkey, June 2003.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coded CPFSK systems for fading channels (In Turkish)", 5th Signal Processing and Applications Conf., SİU’97, pp.371-376, Kuşadası, Aydın, Turkey, May 1997.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coding of FFSK (In Turkish)", 4th Computer-Communication Symposium, pp.64-67, Bursa, Turkey, December 1996.
  • İ. Altunbaş and Ü. Aygölü, "Multilevel coded CPFSK (In Turkish)", Electrical Engineering 6th National Conf., pp.786-789, Bursa, Turkey, September 1995.
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