How to Solve the Problem of Bad Performance of Cooperative Protocols at Low SNR. (21st October 2007)

• Record Type: Journal Article
• Authors: Hucher Hucher, Charlotte Charlotte; Othman Othman, Ghaya Rekaya-Ben Ghaya Rekaya-Ben; Belfiore Belfiore, Jean-Claude Jean-Claude
• Other Names: Mallik Mallik Ranjan K. Ranjan K. Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2008(2008)
• Publication Date: 2007-10-21
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2008/243153
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : We propose some new adaptive amplify-and-forward (AF) and decode-and-forward (DF) protocols using a selection. The new selection criterion is a function of the instantaneous capacities of all possible transmission schemes (with or without cooperation). Outage probabilities and simulation results show that the adaptive cooperation protocols solve the problem of bad performance of cooperation protocols at low SNR. Moreover, they improve the asymptotic performance of their corresponding AF and DF protocols.