DocumentCode :
859030
Title :
An improved bound on the performance of maximum-likelihood multiuser detection receivers in Rayleigh fading
Author :
Mohasseb, Yahya ; Fitz, Michael P. ; Mitra, Urbashi
Author_Institution :
Dept. of Commun., Mil. Tech. Coll., Cairo
Volume :
52
Issue :
3
fYear :
2006
fDate :
3/1/2006 12:00:00 AM
Firstpage :
1184
Lastpage :
1196
Abstract :
In this correspondence, a new bound on the performance of multiuser receivers in fading channels is presented. The bound is based on a novel criterion for decomposability of error sequences. A constructive method to find the set of indecomposable error sequences under the new criterion is presented. Although the presentation is in the context of a narrow-band multiuser system, the improved bounds can be applied directly to code-division multiple-access (CDMA) multiuser systems over flat-fading channels. A modified bound is also developed for multipath-fading channels. Several examples demonstrate the improved tightness of the new bound, relative to previous results
Keywords :
Rayleigh channels; code division multiple access; interference suppression; maximum likelihood detection; multipath channels; multiuser detection; radio receivers; sequences; CDMA; Rayleigh fading channel; code-division multiple-access; error sequence; interference cancellation; maximum-likelihood detection; multipath-fading channel; narrow-band multiuser receiver; AWGN; Fading; Maximum likelihood detection; Multiaccess communication; Multiple access interference; Multiuser detection; Narrowband; Radiofrequency interference; Rayleigh channels; Upper bound; Code-division multiple access (CDMA); Rayleigh-fading channels; error sequences; interference cancellation; maximum-likelihood (ML) receivers; multiuser detection;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.2005.864470
Filename :
1603783
Link To Document :
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