Probability of error for selection diversity as a function of dwell time
An expression is derived for the probability of error of an Nth-order selection diversity system for the case where the receiver is forced to swell on one channel for several symbols before being allowed to make a decision regarding the best channel. It is found that the time-varying nature of a fad...
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Veröffentlicht in: | IEEE transactions on communications 1989-08, Vol.37 (8), p.800-803 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | An expression is derived for the probability of error of an Nth-order selection diversity system for the case where the receiver is forced to swell on one channel for several symbols before being allowed to make a decision regarding the best channel. It is found that the time-varying nature of a fading channel causes significant degradation of the probability of error when the dwell time becomes longer than about 10% of the inverse of the fading bandwidth of the channel. The onset of degradation is a function of the signal-to-noise ratio and of the order of diversity. Specific probabilities of error are calculated for differential phase-shift keyed modulation (DPSK). However, the calculations can be done for any other modulation technique.< > |
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ISSN: | 0090-6778 1558-0857 |
DOI: | 10.1109/26.31178 |