NDLI: Error exponents for multitone frequency shift keying on wideband Rayleigh fading channels

Content Provider	IEEE Xplore Digital Library
Author	Luo, C. Medard, M. Zheng, L.
Copyright Year	2003
Description	Author affiliation: Lab. for Inf. & Decision Syst., Massachusetts Inst. of Technol., USA (Luo, C.; Medard, M.; Zheng, L.)
Abstract	Flash signalling (with vanishing duty cycle) frequency shift keying (FSK) is known to be a capacity-achieving modulation for multipath fading channels in the limit of infinite bandwidth. However, since capacity-achieving schemes using flash FSK build the richness of their codebooks in frequency, the data rates of such schemes increase slowly with bandwidth. We seek to establish schemes that exhibit better performance than flash FSK for large but finite bandwidth. We consider multitone FSK, which we have shown in our previous work that can also achieve the infinite-bandwidth capacity limit for multipath fading channels, but is more general than FSK. Given its increased generality vis-a-vis FSK, and its optimality from a capacity point of view, multitone FSK is a good candidate for transmission over very wide bandwidth. In this paper, we discuss upper and lower bounds of error probabilities for the family of multitone FSK in Rayleigh fading channels. We find that these two bounds coincide in the infinite bandwidth limit and are therefore asymptotically tight. We compare the error probabilities of FSK and multitone FSK in different situations and conclude that FSK is the preferable scheme when average power is the biting constraint, and multitone FSK may be preferable when peak power is a limiting factor. We also explore the relationship among capacity and parameters related to time efficiency and spectrum efficiency.
Starting Page	779
Ending Page	783
File Size	454393
Page Count	5
File Format	PDF
ISBN	0780379748
DOI	10.1109/GLOCOM.2003.1258345
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency shift keying Wideband Fading Bandwidth AWGN Error probability Computer errors Laboratories Spread spectrum communication Mobile communication
Content Type	Text
Resource Type	Article

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