Performance of TCH codes in a land mobile satellite channel

Author

Sebastiäo, Pedro J A ; Cercas, Francisco A B ; Cartaxo, Adolfo V T

Author_Institution

Instituto de Telecomunicacoes, Lisboa, Portugal

Volume

4

fYear

2002

fDate

15-18 Sept. 2002

Firstpage

1675

Abstract

This work aims at presenting simulation results of performance of various Tomlinson-Cercas-Hughes (TCH) codes, namely, TCH(16,6,2), TCH(32,6,6), TCH(64,7,13), TCH(128,9,27) and TCH(256,14,55)#1 for a land mobile satellite channel, where multipath fading and shadowing occur. Performance results are presented for two environments, a city and a highway. It is shown that, in a highway environment with a small elevation angle, TCH codes with low code ratio do not show significant advantage over TCH codes with greater code ratio for high bit error ratio (BER), mainly, for BER>10^-5. For lower BER, the TCH codes with lower code ratio present the expected gain. These results are explained by the statistical properties of bits in error, such as error bursts size and intervals without errors, as a function of signal-noise ratio.

Keywords

block codes; error statistics; fading channels; land mobile radio; mobile satellite communication; multipath channels; BER; Gilbert model; SNR; TCH codes; Tomlinson-Cercas-Hughes codes; bit error ratio; city; code ratio; elevation angle; error bursts interval; error bursts size; error statistics; highway; land mobile satellite channel; multipath fading; nonlinear block codes; shadowing; signal-noise ratio; simulation result; Bit error rate; Cities and towns; Computational modeling; Decoding; Fading; Information technology; Road transportation; Satellites; Shadow mapping; Telecommunication computing;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on

Print_ISBN

0-7803-7589-0

Type

conf

DOI

10.1109/PIMRC.2002.1045464

Filename

1045464