Title :
Cutoff rates of multichannel MFSK and DPSK signals in mobile satellite communications
Author :
Su, Yu.T. ; Chen, Ju-Ya
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
2/1/1995 12:00:00 AM
Abstract :
This paper studies the coded performance of multichannel MFSK and DPSK signalings in mobile satellite environments characterized by various kinds of multipath fading. Rician, Rician/lognormal, and a convex combination of Rician and Rician/lognormal or Rayleigh/lognormal distributions are used to model these communication channels. We investigate the minimum average signal-energy-to-noise ratio required to yield a cutoff rate that is greater than or equal to a given code rate. Also examined are system design issues such as the effect of quantization and metric conversion, the choice between binary codes and M-ary symbol codes, the optimization of the diversity order and the signal size, and the order of deinterleaving and diversity combining. Numerical examples are given to answer concerns raised by these issues
Keywords :
Rayleigh channels; Rician channels; differential phase shift keying; fading; frequency shift keying; log normal distribution; minimum shift keying; mobile satellite communication; multipath channels; radiowave propagation; M-ary symbol codes; Rayleigh distributions; Rician distribution; Rician fading; binary codes; code rate; coded performance; communication channels; cutoff rates; deinterleaving; diversity order; lognormal distributions; lognormal fading; metric conversion; mobile satellite communications; multichannel DPSK signals; multichannel MFSK signals; multipath fading; quantization; signal size; signal-energy-to-noise ratio; system design; Artificial satellites; Binary codes; Costs; Differential quadrature phase shift keying; Diversity reception; Fading; Rician channels; Satellite broadcasting; Satellite communication; System performance;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
