Performance of Amplify-and-Forward and Decode-and-Forward Relaying in Rayleigh Fading With Turbo Codes

Published

May 1, 2006

Author(s)

Michael R. Souryal, B R. Vojcic

Abstract

Cooperative transmission, in which a source and relay cooperate to send a message to a destination, can provide spatial diversity against fading in wireless networks. We derive analytical expressions for the error probability of amplify-and-forward (AF), decode-and-forward (DF), and a new hybrid AF/DF relaying protocol, for systems using strong forward error correction in quasi-static Rayleigh fading channels, and these expressions are shown to compare favorably with simulation results using turbo codes. Analytical results include an exact expression for the distribution of the SNR in AF transmission. For the protocols that achieve diversity (AF, adaptive DF, and hybrid AF/DF), the optimum position of the relay is midway between the source and destination, implying that mutual relaying (or partnering) to a common destination is suboptimal.

Conference Dates

May 1, 2006

Conference Location

Toulouse, FR

Conference Title

IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

Pub Type

Conferences

Download Paper

Local Download

Keywords

amplify-and-forward, cooperative diversity, decode-and-forward, relay, spatial diversity, turbo code

Citation

Souryal, M. and Vojcic, B. (2006), Performance of Amplify-and-Forward and Decode-and-Forward Relaying in Rayleigh Fading With Turbo Codes, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Toulouse, FR, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=151153 (Accessed May 6, 2026)

Additional citation formats