Title :
Multi-h modulation indexes selection using the PBIL algorithm
Author :
Cuthbert, J. ; Braun, D. R m
Author_Institution :
Dept. of Electr. Eng., Cape Town Univ., Rondebosch, South Africa
Abstract :
Multi-h CPFSK modulation is a scheme that is simple to implement, spectrally efficient in terms of bandwidth and has inherent error correction properties. It is the purpose of this research to find specific limits of the niche in which multi-h finds itself. The vehicle of comparisons between modulation and coding schemes is the probability of error tradeoff against signal to noise ratios. Multi-h requires large parameter sets to obtain low probabilities of error. Huge numbers of combinations may need to be investigated. A fast efficient and thorough search needs to be performed. A search algorithm based on the genetic algorithm and known as the `population based incremental learning´ (PBIL) algorithm is thought to be ideal
Keywords :
coding errors; error correction codes; frequency shift keying; probability; search problems; PBIL algorithm; bandwidth; coding; digital communications; error correction properties; error probability; genetic algorithm; multi-h CPFSK modulation; multi-h modulation indexes; parameter sets; population based incremental learning; search algorithm; signal to noise ratios; spectrally efficient modulation; system performance; Additive white noise; Africa; Bandwidth; Digital communication; Error correction; Frequency shift keying; Gaussian noise; Hardware; Nonlinear distortion; Signal to noise ratio;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.563055