A comparison between stationary and mobile digital VHF radio channels and channel models

Author

Swarts, Francis ; Ferreira, H.C.

Author_Institution

Cybern. Lab., Rand Afrikaans Univ., Johannesburg, South Africa

fYear

1991

fDate

8/30/1991 12:00:00 AM

Firstpage

74

Lastpage

79

Abstract

This paper presents results of a study undertaken to determine Fritchman (1967) channel models for mobile as well as stationary (linking two points geographically fixed with respect to each other) VHF radio channels. These models were investigated with respect to four modulation schemes FSK, DPSK, QPSK and 8-ary PSK. Predictions of P (m,n), the probability that a block of n digits will contain exactly m errors, are presented for each of the channels and modulation schemes investigated. Values of the amount of memory in each of these channels, as well as capacities are also presented. Some conclusions are drawn from these results

Keywords

channel capacity; digital radio systems; error correction codes; frequency shift keying; mobile radio systems; phase shift keying; 8-ary PSK; DPSK; FSK; QPSK; VHF radio channels; capacities; channel models; memory; mobile radio channels; probability; stationary radio channels; Cybernetics; Differential quadrature phase shift keying; Digital modulation; Error analysis; Error correction; Frequency shift keying; Joining processes; Laboratories; Phase shift keying; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Signal Processing, 1991. COMSIG 1991 Proceedings., South African Symposium on

Conference_Location

Pretoria

Print_ISBN

0-7803-0040-8

Type

conf

DOI

10.1109/COMSIG.1991.278227

Filename

278227