A Trellis Coded Modulation Scheme for the Fading Relay Channel

Author

Muralidharan, Vijayvaradharaj T. ; Rajan, B. Sundar

Author_Institution

Dept. of ECE, Indian Inst. of Sci., Bangalore, India

fYear

2012

fDate

3-6 Sept. 2012

Firstpage

1

Lastpage

6

Abstract

A decode and forward protocol based Trellis Coded Modulation (TCM) scheme for the half-duplex relay channel, in a Rayleigh fading environment, is presented. The proposed scheme can achieve any spectral efficiency greater than or equal to one bit per channel use (bpcu). A near-ML decoder for the suggested TCM scheme is proposed. It is shown that the high Signal to Noise Ratio (SNR) performance of this near-ML decoder approaches the performance of the optimal ML decoder. Based on the derived Pair-wise Error Probability (PEP) bounds, design criteria to maximize the diversity and coding gains are obtained. Simulation results show a large gain in SNR for the proposed TCM scheme over uncoded communication as well as the direct transmission without the relay.

Keywords

Rayleigh channels; codecs; decode and forward communication; protocols; trellis coded modulation; PEP bounds; Rayleigh fading environment; SNR; Trellis coded modulation scheme; bit per channel use; decode and forward protocol; fading relay channel; half-duplex relay channel; near-ML decoder; optimal ML decoder; pair-wise error probability; signal to noise ratio; uncoded communication; Decoding; Encoding; Fading; Labeling; Measurement; Relays; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2012 IEEE

Conference_Location

Quebec City, QC

ISSN

1090-3038

Print_ISBN

978-1-4673-1880-8

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2012.6399165

Filename

6399165