DocumentCode :
780078
Title :
Optimum Reed-Solamon codes for M-ary FSK modulation with hard decision decoding in Rician-fading channels
Author :
Khalona, Ramon A.
Author_Institution :
Comsat Labs, Clarksburg, MD, USA
Volume :
44
Issue :
4
fYear :
1996
fDate :
4/1/1996 12:00:00 AM
Firstpage :
409
Lastpage :
412
Abstract :
M-ary frequency shift keying (MFSK) is a power-efficient modulation method that is useful for low power and low data rate applications. The power efficiency of this modulation method increases as the signal alphabet increases at the expense of increased complexity and reduced bandwidth efficiency. We present an analysis of its uncoded and coded performance in Rician-fading channels using noncoherent demodulation with Reed-Solomon (RS) codes and hard decision decoding. Previous numerical difficulties encountered in determining the performance of large alphabet sizes are circumvented by the analysis presented, and the results obtained are used to quantify performance gains that can be realized by expanding the modulation´s alphabet size. Optimum RS codes for hard decision decoding are determined using bit error probability as performance measure for a wide range of Rician channel parameters. The results of this paper should be useful as benchmarks of obtainable performance and as a reference for validating the results of simulation studies
Keywords :
Reed-Solomon codes; Rician channels; coding errors; decoding; demodulation; error statistics; fading; frequency shift keying; modulation coding; probability; M-ary FSK modulation; M-ary frequency shift keying; MFSK; Rician channel parameters; Rician fading channels; bandwidth efficiency; bit error probability; coded performance; hard decision decoding; large alphabet sizes; low data rate applications; low power applications; noncoherent demodulation; optimum Reed-Solamon codes; performance gains; performance measure; power efficiency; power efficient modulation method; signal alphabet; simulation studies; uncoded performance; Bandwidth; Decoding; Demodulation; Error probability; Frequency shift keying; Modulation coding; Performance analysis; Performance gain; Reed-Solomon codes; Rician channels;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/26.489082
Filename :
489082
Link To Document :
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