Comparison of TCM and BCM schemes on frequency-selective Rayleigh fading channels with soft-output algorithms

Author

Tarasak, Poramate ; Rajatheva, Nandana

Author_Institution

Telecommun. Program, Asian Inst. of Technol., Pathumthani, Thailand

Volume

2

fYear

2000

fDate

2000

Firstpage

749

Abstract

Trellis-coded modulation (TCM) is well-known for achieving coding gain in additive white Gaussian noise (AWGN) channels without sacrificing additional bandwidth. Block-coded modulation (BCM) has been studied as a counterpart to TCM. In this paper, we consider the possibility of applying BCM to a frequency-selective Rayleigh fading channel with soft-output equalizers. A comparison of error performance between TCM and BCM has been made. Our results show that BCM schemes have comparable performance to TCM schemes with less decoding complexity and the relative performance among coding schemes depends on the type of equalizers

Keywords

Rayleigh channels; block codes; computational complexity; decoding; equalisers; error statistics; trellis coded modulation; BCM; TCM; block-coded modulation; coding gain; decoding complexity; error performance; frequency-selective Rayleigh fading channels; performance; soft-output algorithms; soft-output equalizers; trellis-coded modulation; AWGN channels; Block codes; Decoding; Degradation; Equalizers; Euclidean distance; Fading; Frequency; Modulation coding; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2000. ICC 2000. 2000 IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-6283-7

Type

conf

DOI

10.1109/ICC.2000.853599

Filename

853599