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arXiv 1207.1986cs.ITmath.IT
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两用户线性确定性干扰信道的容量域及其在多会话网络编码中的应用

On the Capacity Region of Two-User Linear Deterministic Interference Channel and Its Application to Multi-Session Network Coding

Xiaoli Xu, Yong Zeng, Yong Liang Guan, Tracey Ho

摘要:

在本文中,我们研究了两个用户的多输入多输出(MIMO)线性确定性干扰信道(IC)的容量,与可能的相关性内/之间的信道矩阵。容量区域的特征在于信道矩阵的秩。结果表明,具有Han-Kobayashi型速率分裂的\emph{linear precoding},将每个用户的信息承载符号分割成公共和专用部分足以在导出的容量区域中获得所有速率对。容量的结果被应用到获得一个可实现的速率区域的双单播网络与随机网络编码在中间结点,它可以被建模的两个用户MIMO线性确定性IC研究。结果表明,新提出的可实现的区域是严格大于文献中现有的区域。

英文摘要:

In this paper, we study the capacity of the two-user multiple-input multiple-output (MIMO) linear deterministic interference channel (IC), with possible correlations within/between the channel matrices. The capacity region is characterized in terms of the rank of the channel matrices. It is shown that \emph{linear precoding} with Han-Kobayashi type of rate-splitting, i.e., splitting the information-bearing symbols of each user into common and private parts, is sufficient to achieve all the rate pairs in the derived capacity region. The capacity result is applied to obtain an achievable rate region for the double-unicast networks with random network coding at the intermediate nodes, which can be modeled by the two-user MIMO linear deterministic IC studied. It is shown that the newly proposed achievable region is strictly larger than the existing regions in the literature.

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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