arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2112.13630cs.ITeess.SPmath.IT
收藏

排列矩阵调制

Permutation Matrix Modulation

Rahmat Faddli Siregar, Nandana Rajatheva, Matti Latva-Aho

摘要:

我们提出了一种新的方案,允许MIMO系统调制一组置换矩阵发送更多的信息比特,扩展我们的初步工作的主题。这种系统被称为置换矩阵调制(PMM)。其基本思想是采用置换矩阵作为预编码器,并将其视为调制符号。我们继续在MIMO的索引调制的演变,采用全天线激活,并获得一组独特的符号,从改变天线发射功率的位置。分析了高斯混合模型(GMM)分布\revv{and finite cardinality input (FCI). Numerical results are evaluated by comparing PMM with the other existing systems.}下PMM的可达速率,并提出了一种利用邻域点法求解最大化问题来获得最优PMM可达速率的方法。提出了一种基于迫零(ZF)的低复杂度检测方案,并讨论了最大似然(ML)检测。我们证明了模拟的符号出错率(SER)和计算复杂性之间的权衡,ZF在SER模拟中表现较差,但需要比ML少得多的计算复杂性。

英文摘要:

We propose a novel scheme that allows MIMO system to modulate a set of permutation matrices to send more information bits, extending our initial work on the topic. This system is called Permutation Matrix Modulation (PMM). The basic idea is to employ a permutation matrix as a precoder and treat it as a modulated symbol. We continue the evolution of index modulation in MIMO by adopting all-antenna activation and obtaining a set of unique symbols from altering the positions of the antenna transmit power. We provide the analysis of the achievable rate of PMM under Gaussian Mixture Model (GMM) distribution \revv{and finite cardinality input (FCI). Numerical results are evaluated by comparing PMM with the other existing systems.} We also present a way to attain the optimal achievable rate of PMM by solving a maximization problem via interior-point method. A low complexity detection scheme based on zero-forcing (ZF) is proposed, and maximum likelihood (ML) detection is discussed. We demonstrate the trade-off between simulation of the symbol error rate (SER) and the computational complexity where ZF performs worse in the SER simulation but requires much less computational complexity than ML.

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。

↑