On the DMT of bidirectional relaying with limited feedback

Thanh Tùng Kim, H. Poor
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引用次数: 12

Abstract

Several half-duplex decode-and-forward two-way relaying protocols that efficiently exploit quantized channel state information (CSI) at the transmitters (CSIT) are investigated. Adapting the number of channel uses for each relaying phase and the transmit power based on limited CSIT is shown to result in a significant improvement in the diversity-multiplexing tradeoff (DMT). With CSI feedback from relay to sources, allocating the number of channel uses is sufficient to match the performance of power allocation. However, power control is instrumental to efficiently exploit CSI feedback from sources to relay.
有限反馈双向中继的DMT问题
研究了几种有效利用发射机量化信道状态信息(CSI)的半双工译码转发双向中继协议。调整每个中继相位的信道数量和基于有限CSIT的发射功率可以显著改善分集复用权衡(DMT)。利用从中继到源的CSI反馈,分配信道的使用数量足以匹配功率分配的性能。然而,功率控制有助于有效地利用从源到继电器的CSI反馈。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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