MIMO干扰系统中基于最大投影的干扰对准

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI:10.1109/ICCChina.2014.7008236

Yanan Ma, Yiqing Zhou, Virgile Garcia, Hongchao Chen, Jinglin Shi

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引用次数: 1

摘要

干涉对准(IA)将干扰信号整合到一个小的子空间中，使有用信号的无干扰检测成为可能。现有的大多数IA预编码器(如CJ-IA)都是为了最大化自由度(DoF)而设计的，这并不一定会优化系统性能，如接收信噪比(SNR)。本文在CJ-IA的基础上，提出了一种基于最大投影的IA (MP-IA)预编码方案，以最大化接收端期望的信号强度，从而优化信噪比、和率和误码率(BER)性能。仿真结果表明，在期望的信号强度、和速率和误码率方面，所提出的MP-IA方案优于现有方案。

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Maximum projection based interference alignment in MIMO interference systems

Interference alignment (IA) consolidates interference signals into a small subspace and makes the interference-free detection possible for useful signals. Most existing IA precoders such as CJ-IA are designed to maximize the degree of freedom (DoF), which does not necessarily result in optimized system performance such as receiving signal-to-noise ratio (SNR). In this paper, based on CJ-IA, a maximum projection based IA (MP-IA) precoding scheme is proposed to maximize the desired signal strength at receivers, which brings optimized SNR, sum-rate and bit error rate (BER) performance. It is shown in simulations that the proposed MP-IA outperforms existing schemes in terms of desired signal strength, sum-rate and BER.

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来源期刊

2014 IEEE/CIC International Conference on Communications in China (ICCC)

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