Adaptive M-QAM scheme and unbiased MMSE-DFE receiver

被引：0
|
作者：
Ammari, ML [1 ]
Gagnon, F [1 ]
Belzile, J [1 ]
机构：
[1] Ecole Technol Super, Dept Elect Engn, Montreal, PQ, Canada
来源：
VTC2005-FALL: 2005 IEEE 62ND VEHICULAR TECHNOLOGY CONFERENCE, 1-4, PROCEEDINGS | 2005年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, an adaptive quadrature amplitude modulation (AQAM) scheme for an equalized system over a selective channel is investigated. To reduce intersymbol interference (ISI), a minimum-mean-squared-error decision feedback equalizer (MMSE-DFE) with an unbiased decision rule is used. In order to select the appropriate modulation mode, the receiver estimates the MSE at the equalizer output. The estimated MSE is then sent back to the transmitter which adjusts the modulation level. A reliable feedback link between the receiver and the transmitter is required to achieve good performances.
引用
收藏
页码：1935 / 1939
页数：5
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