Soft-limiter RAKE receivers for coded DS/DPSK systems over pulse jammed multipath-fading channels

被引:6
|
作者
Chang, IK [1 ]
Stuber, GL [1 ]
机构
[1] GEORGIA INST TECHNOL,SCH ELECT ENGN,ATLANTA,GA 30332
关键词
D O I
10.1109/26.536922
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
Two soft-limiter RAKE receivers are evaluated for coded direct-sequence/differential phase shift keying (DS/DPSK) signaling: over a pulse jammed multipath-fading channel that use a combination of antenna and multipath diversity. One uses predetection selective (antenna) combining followed by postdetection equal gain (multipath) combining, and the other uses postdetection equal gain combining only. In either case, the postdetection diversity combiner output is soft-limited prior to decoding, It is shown that for increasing levels of diversity the soft-limiter becomes quite effective, resulting in a receiver performance that approaches a maximum likelihood (ML) soft decision receiver with perfect jammer state information.
引用
收藏
页码:1163 / 1172
页数:10
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