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.
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页数：5
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