Modulation-Independent Non-Data-Aided SNR Estimator for OFDM Signals in Nakagami Fading Channels

被引：0
|
作者：
Hafez, Mohammed [1 ]
Khattab, Tamer [1 ]
Shalaby, Hossam [2 ]
机构：
[1] Qatar Univ, Dept Elect Engn, Doha, Qatar
[2] E JUST, Dept Elect & Commun Engn, Alexandria 21934, Egypt
来源：
2013 IEEE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING (PACRIM) | 2013年
关键词：
OFDM; time-domain; SNR estimation; Nakagami fading; non-data-aided;
D O I：
暂无
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：
A signal-to-noise ratio estimator for OFDM signals in Nakagami-m fading channels is proposed. This estimator can be used with any signal constellation. It is an envelope-based non-data-aided estimator that makes use of statistical-moments of the received OFDM signals to get an estimate of the SNR in time domain. A mathematical derivation of the estimator is given and two main performance measures are evaluated, namely, the bias and the mean-squared-error. Our results reveal that this estimator works better in severe fading cases and has a good performance with low bias and low variance in the range of concern for communication systems.
引用
收藏
页码：6 / 9
页数：4
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