- Research Article
- Open Access
Differential Detection of Space-Time Spreading with Two Transmit Antennas
EURASIP Journal on Wireless Communications and Networking volume 2006, Article number: 070509 (2006)
A differential detection scheme for space-time spreading with two transmit antennas is proposed. The scheme does not require channel state information at either the transmitter or the receiver. With segmentation and preamble symbols padded at the transmitter, the receiver recovers the information using differential detection. Both phase-shift keying (PSK) and quadrature amplitude modulation (QAM) signals are considered. The proposed scheme achieves two-level transmit diversity gain with low complexity and saves the use of channel estimation, while having about 3 dB performance loss as compared to the coherent detection scheme. When multiple receive antennas exist, additional receive diversity gain can be achieved along with the transmit diversity gain. The scheme works fine under block-fading channel as well as slow Rayleigh fading channel, which is a popular scenario for high-rate data communications. The system performance for different segment sizes, channel fading speeds, modulation methods, and numbers of receive antennas is studied through simulations.
Tarokh V, Naguib A, Seshadri N, Calderbank AR: Space-time codes for high data rate wireless communication: performance criteria in the presence of channel estimation errors, mobility, and multiple paths. IEEE Transactions on Communications 1999,47(2):199–207. 10.1109/26.752125
Tarokh V, Seshadri N, Calderbank AR: Space-time codes for high data rate wireless communication: performance criterion and code construction. IEEE Transactions on Information Theory 1998,44(2):744–765. 10.1109/18.661517
Alamouti SM: A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications 1998,16(8):1451–1458. 10.1109/49.730453
Al-Dhahir N: A new high-rate differential space-time block coding scheme. IEEE Communications Letters 2003,7(11):540–542. 10.1109/LCOMM.2003.820095
Diggavi SN, Al-Dhahir N, Stamoulis A, Calderbank AR: Differential space-time coding for frequency-selective channels. IEEE Communications Letters 2002,6(6):253–255. 10.1109/LCOMM.2002.1010872
Jafarkhani H, Tarokh V: Multiple transmit antenna differential detection from generalized orthogonal designs. IEEE Transactions on Information Theory 2001,47(6):2626–2631. 10.1109/18.945280
Tarokh V, Alamouti SM, Poon P: New detection schemes for transmit diversity with no channel estimation. Proceedings of IEEE International Conference on Universal Personal Communications (ICUPC '98), October 1998, Florence, Italy 2: 917–920.
Tarokh V, Jafarkhani H: A differential detection scheme for transmit diversity. IEEE Journal on Selected Areas in Communications 2000,18(7):1169–1174. 10.1109/49.857917
Tarokh V, Jafarkhani H, Calderbank AR: Space-time block codes from orthogonal designs. IEEE Transactions on Information Theory 1999,45(5):1456–1467. 10.1109/18.771146
Tarokh V, Jafarkhani H, Calderbank AR: Space-time block coding for wireless communications: performance results. IEEE Journal on Selected Areas in Communications 1999,17(3):451–460. 10.1109/49.753730
Hochwald B, Marzetta TL, Papadias CB: A transmitter diversity scheme for wideband CDMA systems based on space-time spreading. IEEE Journal on Selected Areas in Communications 2001,19(1):48–60. 10.1109/49.909608
Soni RA, Buehrer RM: On the performance of open-loop transmit diversity techniques for IS-2000 systems: a comparative study. IEEE Transactions on Wireless Communications 2004,3(5):1602–1615. 10.1109/TWC.2004.833410
Buehrer RM, Soni RA, Benning RD: Transmit diversity for combined 2G and 3G CDMA systems. IEEE Transactions on Communications 2004,52(10):1648–1653. 10.1109/TCOMM.2004.836437
Yang L-L, Hanzo L: Adaptive space-time-spreading-assisted wideband CDMA systems communicating over dispersive Nakagami-m fading channels. EURASIP Journal on Wireless Communications & Networking 2005,2005(2):216–230.
Yang L-L, Hanzo L: Performance of broadband multicarrier DS-CDMA using space-time spreading-assisted transmit diversity. IEEE Transactions on Wireless Communications 2005,4(3):885–894.
Chong LL, Milstein LB: The effects of channel-estimation errors on a space-time spreading CDMA system with dual transmit and dual receive diversity. IEEE Transactions on Communications 2004,52(7):1145–1151. 10.1109/TCOMM.2004.831350
Proakis JG: Digital Communications. McGraw-Hill, New York, NY, USA; 1995.
Rappaport TS: Wireless Communications: Principles and Practice. Prentice-Hall, Upper Saddle River, NJ, USA; 1996.
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Shi, T., Cao, L. Differential Detection of Space-Time Spreading with Two Transmit Antennas. J Wireless Com Network 2006, 070509 (2006). https://doi.org/10.1155/WCN/2006/70509
- Channel Estimation
- Channel State Information
- Rayleigh Fading Channel
- Quadrature Amplitude Modulation
- Transmit Antenna