Title :
Static hybrid Amplify-Decode and Forward Cooperative ARQ with opportunistic relaying
Author :
Said, M.B. ; Boujemaa, Hatem
Author_Institution :
Higher Sch. of Commun. of Tunis, Univ. of 7th November at Carthage, Tunis, Tunisia
Abstract :
In this paper, we propose an hybrid Amplify-Decode and Forward (AF-DF) approach for cooperative Automatic Repeat reQuest (ARQ) protocols with opportunistic relaying. In the proposed scheme, relay operating mode was fixed with respect to the relay location. When a relay is close to source, it can operate in AF mode. Otherwise, relay operates in DF mode. With opportunistic relaying, the node that offers the high instantaneous Signal to Noise Ratio (SNR) of the relaying link retransmits the packet. This node is selected among the source, all AF relays and DF relays that have correctly decoded the transmitted packet. We evaluate the system performance in terms of average number of transmissions and throughput efficiency. Finally, simulation results are provided to validate our analysis.
Keywords :
amplify and forward communication; automatic repeat request; cooperative communication; decode and forward communication; routing protocols; automatic repeat request protocols; cooperative ARQ; opportunistic relaying; relay location; relaying link; static hybrid amplify-decode and forward mode; transmitted packet; Automatic repeat request; Fading; Protocols; Relays; Signal to noise ratio; Simulation; Throughput; Cooperative ARQ; Opportunistic communication; hybrid relaying;
Conference_Titel :
Communications, Computing and Control Applications (CCCA), 2011 International Conference on
Conference_Location :
Hammamet
Print_ISBN :
978-1-4244-9795-9
DOI :
10.1109/CCCA.2011.6031457
