In this paper, we propose a Double-Space Time Transmit Diversity (D-STTD) communication system with Adaptive Modulation and Coding (AMC) scheme and analyze its performance using simulation experiments.
The simulation results show that the probability of selecting a high Modulation and Coding Scheme (MCS) level increased as the Signal to Noise Ratio (SNR) improved. Furthermore, the D-STTD communication system with AMC scheme provided a more uniform throughput distribution throughout the entire SNR range compared to its counterpart which did not apply AMC scheme. Also, the maximum throughput of the D-STTD communication system with AMC scheme was twice that of a conventional AMC communication system or a Space Time Transmit Diversity (STTD) communication system with AMC scheme.
References
[1]
B. Vucetic, “An adaptive coding scheme for time-varying channels,” IEEE Transactions on Communications, Vol. 39, pp. 653-663, May 1991.
[2]
A. J. Goldsmith and S. G. Chua, “Variable-rate variable- power MQAM for fading channels,” IEEE Transactions on Communications, Vol. 45, No. 10, pp. 1218-1230, October 1997.
[3]
A. J. Goldsmith and S. G. Chua, “Adaptive coded modulation for fading channels,” IEEE Transactions on Communications, Vol. 46, No. 5, pp. 595-602, May 1998.
[4]
S. M. Alamouti, “A simple diversity technique for wireless communications,” IEEE Journal on Selected Areas in Communications, Vol. 16, No. 8, pp. 1451-1458, Octo-ber 1998.
[5]
Texas Instruments, “Double-STTD scheme for HSDPA systems with four transmit antennas: Link level simulation results,” TSG-R WG1 document, TSGR1#20(01)04 58, Busan, Korea, May 21-24, 2001.
[6]
H. J. Lee, E. J. Powers, and J. Kang, “Low-complexity ZF detector for D-STTD systems in time-selective fading channels,” Vehicular Technology Conference, IEEE 62nd, pp. 2043-2047, September 25-28, 2005.
[7]
3GPP TS 25.212 TSG RAN Multiplexing and channel coding (FDD).
[8]
3GPP TS 25.222 TSG RAN Multiplexing and channel coding (TDD).
[9]
3GPP TS 25.944 TSG RAN Channel coding and multi-plexing examples.
