A New Detection Scheme for Differential Unitary Space-Time Modulation
The performance loss of approximately 3 dB signal to noise ratio is always paid with conventional differential unitary space-time demodulation (DUSTD) compared to the related coherent detection. In this paper, a new detection scheme consists of two steps is proposed for differential unitary space-time modulation (DUSTM) system. In the first step, the data sequence is estimated by conventional DUSTD and recoded to produce an initial estimate of the transmitted symbol stream. In the second step, the initial estimate of the symbol stream is utilized to estimate the channel, which is then used to implement coherent sequence detection. Simulation results show that the proposed detection scheme performs much better than conventional DUSTD.
Zhengfeng Du Xiqi Gao
National Mobile Communications Research Laboratory(NCRL) Southeast University Nanjing, 210096 P.R.China
国际会议
2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)
成都
英文
646-649
2006-10-22（万方平台首次上网日期，不代表论文的发表时间）