A distributed on-off amplify-and-forward protocol for the fading parallel relay channel

Author

Dai, Mingjun ; Chi Sung

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China

Volume

13

Issue

9

fYear

2009

Firstpage

643

Lastpage

645

Abstract

A single source-destination pair communicating via a layer of two parallel relay nodes under slow fading is considered. The bit error rate (BER) performance of Alamouti-Coded Amplify-and-Forward (ACAF) transmission protocol under different power control strategies is investigated. The optimal power control rule is analytically derived and two distributed approximations to this rule are proposed. The optimal rule reveals an interesting fact: The transmission of each relay is on-off in nature. Simulation results show that our proposed distributed approximations improve the BER performance significantly.

Keywords

codes; error statistics; fading channels; optimal control; power control; protocols; telecommunication control; ACAF transmission protocol; Alamouti-coded amplify-and-forward transmission; bit error rate; distributed approximations; distributed on-off amplify-and-forward protocol; fading parallel relay channel; optimal power control rule; parallel relay nodes; power control strategies; single source-destination pair; slow fading; Aggregates; Bit error rate; Digital relays; Fading; Power control; Power system modeling; Power system relaying; Protocols; Reactive power; Transmitting antennas; Alamouti scheme, amplify-and-forward (AF), power control, parallel relay channel;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.090580

Filename

5282361