SNR Estimation for FM-DCSK System over Multipath Rayleigh Fading Channels

被引：1

作者：

Cai, Guofa ^{[1
]}

Wang, Lin ^{[1
]}

Kong, Long ^{[2
]}

Kaddoum, Georges ^{[2
]}

机构：

[1] Xiamen Univ, Dept Commun Engn, Xiamen 361005, Fujian, Peoples R China

[2] Univ Quebec, Ecole Technol Super, Montreal, PQ, Canada

来源：

2016 IEEE 83RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2016年

关键词：

FM-DCSK; SNR estimation; Cramer-Rao lower bound (CRLB); multipath Rayleigh fading channels; PERFORMANCE ANALYSIS;

D O I：

10.1109/VTCSpring.2016.7504478

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 paper, we deal with the problem of maximum likelihood (ML) estimation of the signal-to-noise ratio (SNR) parameter for frequency modulated differential chaos shift key (FM-DCSK) system over multipath Rayleigh fading channels. The ML estimators are derived for various scenarios including data-aided (DA), non-data aided (NDA) and joint DA-NDA estimation by using both the data and pilot symbols. For comparison purposes, the Cramer-Rao lower bounds (CRLBs) for the SNR estimators are derived. The performance of the estimators is evaluated by simulations and comparing with CRLBs in terms of the mean-square-error. Simulated results show that for a large spreading factor the proposed scheme performs well over a wide SNR range in comparisons with CRLBs.

引用

页数：5

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