Optimum Cooperation of the Cooperative Coding Scheme for Frequency Division Half-Duplex Relay Channels

Author

Noh, Kyoung-Lae ; Serpedin, Erchin ; Suter, Bruce

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX

Volume

6

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

1654

Lastpage

1658

Abstract

This paper analyzes the effects of the level of cooperation (LOC) on the performance of a practical cooperative coding scheme for frequency division half-duplex relay links in general wireless ad-hoc networks. The end-to-end bit error probability (BEP) and the corresponding optimum LOG minimizing the end-to-end BEP are investigated for specific realizations using a family of rate compatible punctured convolutional (RCPC) codes. This paper shows that the BEP of the cooperative coding scheme depends on the LOC and there exists an optimum LOC for every specific realization. Further, it is shown that more than a certain level of cooperation is required to achieve possible cooperative gains in practical signal-to-noise ratio (SNR) regions, and increasing LOC does not effect much on the BEP performance for sufficiently large LOCs

Keywords

channel coding; convolutional codes; error statistics; frequency division multiplexing; wireless channels; SNR; cooperative coding scheme; end-to-end bit error probability; frequency division half-duplex relay channels; level of cooperation; rate compatible punctured convolutional codes; signal-to-noise ratio; Ad hoc networks; Convolution; Convolutional codes; Error probability; Frequency conversion; Lab-on-a-chip; Performance analysis; Performance gain; Relays; Signal to noise ratio;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2007.360367

Filename

4202171