Diversity-Multiplexing Tradeoff of Wireless Communication Systems With User Cooperation
作者： Qian Li , Kwok H Li , Kah C Teh , None
关键词:
摘要: As one of the key technologies for future wireless communication systems, user cooperation has a great potential in improving system performance. In this paper, diversity benefit is evaluated using diversity-multiplexing tradeoff (DMT) as performance metric. Ways exploiting are devised. We investigate two typical channel models, namely, multiple-access (MAC) and interference (IFC). For MAC, all terminals equipped with multiple antennas K(K ≥ 2) sources cooperate full-duplex mode. determine optimal DMT propose compressed-and-forward (CF) based scheme to achieve DMT. IFC, we consider two-user single-antenna source cooperation. A upper bound lower bounds derived. The derived on capacity bound, decode-and-forward (DF) schemes. most scenarios, found be tight. This implies that under certain can achieved by DF-based
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