Title :
Modeling, capacity, and joint source/channel coding for Rayleigh fading channels
Author :
Wang, Hong Shen ; Moayeri, Nader
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, New Territories, Hong Kong
Abstract :
A finite-state Markov channel (FSMC) model for a Rayleigh fading channel (RFC) is constructed by partitioning the range of its received signal-to-noise ratio (SNR) into K intervals. The crossover probabilities of the K binary symmetric channels associated with its states are calculated. The second-order statistics of the received SNR are used to approximate the Markov transition probabilities. The capacity of the modeled channel can then be calculated with recursive algorithms. A joint source and channel coding scheme based on quantization for this channel model is studied. The decoder is assumed to have access to the channel state information, which it uses to adjust itself to varying channel conditions. It is shown that the use of the finite-state Markov channel model and knowledge of the channel state information significantly improves the performance of the system
Keywords :
Markov processes; Rayleigh channels; channel capacity; channel coding; fading; recursive estimation; source coding; Markov transition probabilities; Rayleigh fading channels; binary symmetric channels; capacity; crossover probabilities; decoder; finite-state Markov channel model; joint source/channel coding; partitioning; performance; quantization; recursive algorithms; second-order statistics; signal-to-noise ratio; Channel coding; Channel state information; Decoding; Fading; Frequency; Markov processes; Probability; Quantization; Signal to noise ratio; Statistics;
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
Print_ISBN :
0-7803-1267-8
DOI :
10.1109/VETEC.1993.507514