A regressive algorithm for multiple-symbol differential-detection of DPSK

被引：0
|
作者：
Mei, L
BoukliHacene, M
Padgett, JE
机构：
来源：
GLOBECOM 97 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, CONFERENCE RECORD, VOLS 1-3 | 1997年
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中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Research in early 1990's showed that multiple-symbol demodulation of DPSK [1] could provide a gain of 1 to 2 dB over conventional DPSK techniques. However, the demand on additional hardware is very high. We propose a regressive algorithm that takes advantages of the redundancy in demodulated data to improve upon the ''optimal'' algorithm by Divsalar [1]. This algorithm also has two modes of operation, which cuts down the error propagation. By selecting only the most essential information needed in ML-DD[1], it can also reduce the receiver hardware significantly. Computer simulation results are also presented. With reduced hardware complexity, our algorithm still outperforms the ''optimal'' ML-DD algorithm.
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页码：358 / 362
页数：5
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