Turbo decoding on Rayleigh fading channels with noisy channel estimates

被引：0
|
作者：
Frenger, P [1 ]
机构：
[1] Chalmers Univ Technol, Dept Signals & Syst, Commun Syst Grp, S-41296 Gothenburg, Sweden
来源：
1999 IEEE 49TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-3: MOVING INTO A NEW MILLENIUM | 1999年
关键词：
Turbo decoding; Rayleigh fading channels; channel estimation; BPSK modulation;
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 new metric for Turbo decoding on Rayleigh fading channels with noisy channel estimates is derived. By including the error variance of the channel estimate in the decoder metric derivation, we calculate the correct channel reliability factor for this case. Simulations show that the SNR gain of using this new metric, compared to if we ignore the uncertainty of the channel estimate, may be as large as 1 dB at a bit error probability of 10(-3). This gain is obtained without any complexity increase.
引用
收藏
页码：884 / 888
页数：5
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