Performance Estimating for Space-Time Block Coded Cooperative Communication System
Luo Tao, Xiangming Li, Yue Guang-xin · 2006
A new cooperative communication system based on space-time block coding (WCC-STBC) is proposed in this paper, and a closed-form expression of bit error rate for this WCC-STBC system is also deduced. The results through theoretical analysis and computer simulation show that the diversity gain, which is dependent on the characteristics of the user's individual channel and the inter-user channel between them, could be obtained in the WCC-STBC system. When BER is 10-3, and if the inter-user channel is 5 dB better than their individual's, about 3 dB gain could be gotten in WCC-STBC system; and if one user's channel is 5 dB better than his partner's, 5 dB gain for the performance of the worse user could be improved while that of the better one is less loss, only about 0.5 dB or so