A Simple DoF-Achievable Scheme for the Gaussian Interference Channel with Delayed CSIT
A Simple DoF-Achievable Scheme for the Gaussian Interference Channel with Delayed CSIT
复制标题
具有延迟CSIT的高斯干扰信道的简单自由度可实现方案
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
B. Clerckx
中科院分区：
文献类型：
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作者：
M. Rezaee;P. Schreier;M. Guillaud;B. Clerckx
我们考虑了发射端信道状态信息过时的两用户多输入多输出干扰信道(CSIT)。对于快衰落情况，该信道的自由度(DoF)区域已由Vaze和Varanasi在[1]中进行了表征。我们设计了一种简单可实现的方案，对于不同的天线配置有一个统一的结构。在该方案中，预编码器的设计过程中使用了从连续概率分布中选择随机项的矩阵。包含随机矩阵的预编码器的统一结构使得我们的方案适合推广到其他网络。
We consider the two-user Multiple-Input-Multiple-Output Interference Channel (MIMO-IC) with outdated channel state information at the transmitters (CSIT). For a fast- fading scenario, the degrees-of-freedom (DoF) region for this channel has been characterized by Vaze and Varanasi in [1]. We devise a simple achievable scheme, which has a unified structure for different antenna configurations. In the proposed scheme, matrices with random entries chosen from a continuous probability distribution are used in the process of designing the precoders. The unified structure of the precoders involving random matrices makes our scheme suitable for generalization to other networks.