Linear Processing for Intercarrier Interference in OFDM Index Modulation Based on Capacity Maximization

被引：11

作者：

Zheng, Jianping ^{[1
]}

Chen, Ru ^{[1
]}

机构：

[1] Xidian Univ, State Key Lab ISN, Xian 710071, Peoples R China

来源：

IEEE SIGNAL PROCESSING LETTERS | 2017年 / 24卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Capacity; intercarrier interference (ICI); index modulation (IM); orthogonal frequency division multiplexing (OFDM); particle swarm optimization (PSO); CANCELLATION;

D O I：

10.1109/LSP.2017.2687471

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, we study the linear processing method to alleviate the intercarrier interference (ICI) for the orthogonal frequency division multiplexing (OFDM) index modulation (IM) in the rapidly time-varying (RTV) channel. Concretely, the proposed linear processing scheme is implemented by the joint design of the transmit precoding and receive postprocessing matrices. First, a lower bound of the capacity of OFDM-IM in the RTV channel is derived. Then, the precoding and postprocessing matrices are designed to maximize this capacity lower bound through utilizing the particle swarm optimization algorithm. Computer simulations show that the proposed scheme can alleviate the ICI effectively and has better performance than the conventional ICI self-cancellation scheme.

引用

页码：683 / 687

页数：5

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