arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1009.5145cs.ITmath.IT
收藏

双向中继信道中基于网络编码的中继选择

Relay Selection with Network Coding in Two-Way Relay Channels

Yonghui Li, Raymond H. Y. Louie, Branka Vucetic

摘要:

本文研究了双向中继信道中联合网络编码和中继选择的设计问题。在所提出的方案中,两个用户首先顺序地广播他们各自的信息到所有的中继。我们提出了两个RS计划,一个单一的中继选择与NC和双中继选择与NC。对于这两种方案,所选择的中继对从两个用户发送的接收信号执行NC,并将它们转发给两个用户。提出的方案进行了分析和准确的比特出错率(BER)的表达式推导和验证通过蒙特卡罗模拟。结果表明,双中继选择与NC优于其他考虑中继选择方案在双向中继信道。结果还表明,建议的NC中继选择方案提供了一个选择增益相比,NC方案没有中继选择,和网络编码增益相对于传统的中继选择方案没有NC。

英文摘要:

In this paper, we consider the design of joint network coding (NC)and relay selection (RS) in two-way relay channels. In the proposed schemes, two users first sequentially broadcast their respective information to all the relays. We propose two RS schemes, a single relay selection with NC and a dual relay selection with NC. For both schemes, the selected relay(s) perform NC on the received signals sent from the two users and forward them to both users. The proposed schemes are analyzed and the exact bit error rate (BER) expressions are derived and verified through Monte Carlo simulations. It is shown that the dual relay selection with NC outperforms other considered relay selection schemes in two-way relay channels. The results also reveal that the proposed NC relay selection schemes provide a selection gain compared to a NC scheme with no relay selection, and a network coding gain relative to a conventional relay selection scheme with no NC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑