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arXiv 0902.2438cs.ITmath.IT
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高斯双向中继信道的容量控制在1/2比特以内

Capacity of the Gaussian Two-way Relay Channel to within 1/2 Bit

Wooseok Nam, Sae-Young Chung, Yong H. Lee

摘要:

在本文中,高斯双向中继信道,其中两个源节点通过一个中继交换消息,被认为是。我们假设所有的节点都工作在全双工模式,并且源节点之间没有直接的信道。我们提出了一个可实现的方案组成的嵌套格码的上行链路和结构化的分仓下行链路。我们表明,该计划实现在1/2位从割集界的所有信道参数,并成为渐近最优的信噪比增加。

英文摘要:

In this paper, a Gaussian two-way relay channel, where two source nodes exchange messages with each other through a relay, is considered. We assume that all nodes operate in full-duplex mode and there is no direct channel between the source nodes. We propose an achievable scheme composed of nested lattice codes for the uplink and structured binning for the downlink. We show that the scheme achieves within 1/2 bit from the cut-set bound for all channel parameters and becomes asymptotically optimal as the signal to noise ratios increase.

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。

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