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Titolo:
Optimum spreading bandwidth for selective RAKE reception over Rayleigh fading channels
Autore:
Lau, WC; Alouini, MS; Simon, MK;
Indirizzi:
Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA Univ Minnesota Minneapolis MN USA 55455 p Engn, Minneapolis, MN 55455 USA Jet Prop Lab, Pasadena, CA 91109 USA Jet Prop Lab Pasadena CA USA 91109Jet Prop Lab, Pasadena, CA 91109 USA
Titolo Testata:
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
fascicolo: 6, volume: 19, anno: 2001,
pagine: 1080 - 1089
SICI:
0733-8716(200106)19:6<1080:OSBFSR>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
DENSE MULTIPATH CHANNELS; DIVERSITY COMBINING TECHNIQUES; PERFORMANCE ANALYSIS;
Keywords:
diversity combining; generalized selection combining; hybrid SC/MRC; maximal ratio combining; RAKE reception; Rayleigh fading; selection combining; spreading bandwidth; ultrawideband radio;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Lau, WC Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA Univ Minnesota Minneapolis MN USA 55455 Minneapolis, MN 55455 USA
Citazione:
W.C. Lau et al., "Optimum spreading bandwidth for selective RAKE reception over Rayleigh fading channels", IEEE J SEL, 19(6), 2001, pp. 1080-1089

Abstract

Building on the recent developments in the performance analysis of generalized selection combining (GSC), this paper examines the optimum spreading bandwidth for a fixed-complexity GSC diversity receiver operating over independent identically distributed Rayleigh paths. For this purpose, the study considers three performance criteria: 1) average combined signal-to-noise ratio (SNR) at the GSC output; 2) average bit error probability (BEP); and 3) outage probability of the instantaneous combined SNR at the GSC output. For the average BEP criterion, results are presented for both coherent and noncoherent combining. For the average combined SNR and some instances of the average BEP optimization problem, an accurate approximate estimate of this optimum bandwidth in the form of a solution of a transendental equation is provided. In other cases, where the optimization is not easily tractable in an analytic fashion, a numeric-search procedure is used to find this optimum bandwidth for different performance criteria and system parameters of interest, Finally, simplified rule-of-thumb-type formulas are also presented as a good reference for picking the optimum spreading bandwidth given a set of system parameters and a particular performance criterion of interest.

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Documento generato il 02/04/20 alle ore 19:00:46