Title :
Modelling of frequency hopped VHF channels in an urban environment and error correction on the channel
Author :
Van Heerden, Andre ; Ferreira, Hendrik C.
Author_Institution :
Cybernetics Lab., Rand Afrikaans Univ., Aucklandpark, South Africa
fDate :
9/11/1992 12:00:00 AM
Abstract :
Experimental and analytical results of applying Fritchman partitioned Markov chains to model the error sequences of mobile and stationary channels are obtained from real-time measurements. The Markov chain channel models were applied to the system using four modulation schemes, namely FSK, DPSK, QPSK and 8-ary PSK. Using error distributions obtained from both the experimental measurements and the channel models, BCH and Reed-Solomon error correcting codes of various block lengths and information rates are investigated. The effect of different interleaving depths on the block error rate is shown
Keywords :
BCH codes; Markov processes; Reed-Solomon codes; error correction codes; frequency agility; frequency shift keying; phase shift keying; radio links; telecommunication channels; 8-ary PSK; BCH error correcting codes; DPSK; FSK; Fritchman partitioned Markov chains; QPSK; Reed-Solomon error correcting codes; block error rate; channel models; frequency hopped VHF channels; interleaving depths; real-time measurements; urban environment; Differential quadrature phase shift keying; Error analysis; Error correction codes; Frequency shift keying; Information rates; Interleaved codes; Length measurement; Phase shift keying; Quadrature phase shift keying; Reed-Solomon codes;
Conference_Titel :
Communications and Signal Processing, 1992. COMSIG '92., Proceedings of the 1992 South African Symposium on
Conference_Location :
Cape Town
Print_ISBN :
0-7803-0807-7
DOI :
10.1109/COMSIG.1992.274286
