A differential modulation scheme for MIMO links with distributed transmit antennas

作者：Sun, Defu^*; Tang, Youxi; Shao, Shihai

来源：IEEE Communications Letters, 2007, 11(11): 892-894.

DOI：10.1109/LCOMM.2007.071189

• channel propagation delay
• differential modulation
• distributed antenna system
• multiple-input multiple-output

This letter proposes a differential en/decoding scheme for multiple-input multiple-output (MIMO) communication links with distributed transmit antennas, in which neither the transmitter nor the receiver knows channel knowledge. The proposed scheme is based on the layered differential space-time codes we present. Simulation results show that the bit error rate (BER) performance is nonidentical in different channel propagation delay cases. The optimum delay. time for two transmit antennas system, for example, is about 0.6T(s) (where T-s denotes symbol period) when the links achieve better performance.

• 出版日期2007-11
• 单位电子科技大学