Opportunistic relaying in two-way networks
Opportunistic relaying in two-way networks
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DOI：
10.4108/chinacom.2010.98
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发表时间：
2010-08
期刊：
影响因子：
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通讯作者：
S. Atapattu;Y. Jing;Hai Jiang;C. Tellambura
中科院分区：
文献类型：
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作者：
S. Atapattu;Y. Jing;Hai Jiang;C. Tellambura
本文研究的是双向通信网络的机会中继。对于具有两个用户通过多个放大转发中继相互交换信息的网络，我们提出了单中继选择方案。由于通信是双向的，因此所提出的方案旨在优化用户对之间的两个通信任务的较差性能。使用该方案获得了两个用户的有效较差信噪比（SNR）的累积分布函数（CDF）的近似值，并在此基础上导出了块错误率（BLER）和双向网络的分集阶数。然后，借助中继排序思想，将单中继选择方案推广为多中继选择方案。提供数值和模拟结果来验证分析。
This paper is on opportunistic relaying for networks with two-way communications. For a network with two users that exchange information with each other through multiple amplify-and-forward relays, we propose a single-relay selection scheme. Since the communication is two-way, the proposed scheme aims at optimizing the worse performance of the two communication tasks between the pair of users. An approximation on the cumulative distribution function (CDF) of the effective worse signal-to-noise ratio (SNR) of the two users using the proposed scheme is obtained, based on which the block error rate (BLER) and the diversity order of the two-way network are derived. Then, the single-relay selection scheme is generalized to a multiple-relay selection scheme with the help of the relay ordering idea. Numerical and simulation results are provided to verify the analysis.