SYMBOL-AIDED CHANNEL ESTIMATION WITH NONSELECTIVE RAYLEIGH FADING CHANNELS

被引：24
|
作者：
DANDREA, AN
DIGLIO, A
MENGALI, U
机构：
[1] Univ of Pisa, Pisa
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 1995年 / 44卷 / 01期
关键词：
D O I：
10.1109/25.350268
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：
New algorithms are proposed to implement coherent detection of PSK signals transmitted over frequency-hat Rayleigh channels, Channel gain estimates are derived both from known symbols multiplexed with the data stream and from tentative data decisions. The performance of these algorithms is assessed by computer simulation with uncoded and trellis-coded modulation. Comparisons are also made with differentially coherent detection (DPSK) and with perfect coherent detection (corresponding to ideal knowledge of the fading process). Simulation results demonstrate that these algorithms can track adequately the severe fading fluctuations encountered on a Rayleigh channel and that their superiority over DPSK becomes impressive with fast fading.
引用
收藏
页码：41 / 49
页数：9
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