Closed-Form SNR Estimator for MPSK Signals in Nakagami Fading Channels

被引：4

作者：

Chang, Liang ^{[1
]}

Li, Geoffrey Ye ^{[2
]}

Li, Jingchun ^{[1
]}

机构：

[1] State Radio Monitoring Ctr, Beijing 100037, Peoples R China

[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2016年 / 65卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Estimation; multiple phase-shift keying (MPSK); Nakagami-m fading; non-data-aided (NDA); signal-to-noise ratio (SNR); ALGORITHM;

D O I：

10.1109/TVT.2015.2489699

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：

Estimation of signal-to-noise ratio (SNR) plays an important role in many fields of communications. This paper addresses the SNR estimation of multiple phase-shift keying (MPSK) signals in Nakagami-m fading channels. A family of SNR estimators with closed-form expressions is developed based on the relationship among different orders of moments. Compared with the existing algorithms, the estimator, which exploits the minimum order of moments, exhibits the best performance in general. We also propose a joint estimation algorithm for SNR and the fading factor when it is unknown. Simulation results verify the feasibility and superiority of the proposed algorithms.

引用

页码：6878 / 6887

页数：10

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