Title :
Optimal transmission policy of truncated cooperative ARQ protocols using opportunistic amplify and forward relaying
Author_Institution :
TECHTRA Res. Unit, Higher Sch. of Commun. of Tunis, Tunis, Tunisia
Abstract :
In cooperative automatic repeat request (ARQ), the retransmission can be done by the source or by a selected relay. We consider opportunisitic amplify and forward (AF) relaying. The selected relay offers the highest instantaneous signal to noise ratio (SNR) of the relaying link (source-relay-destination). We investigate the optimal combination of source and relays transmission for a destination using a selective combining (SC) or a maximum ratio combining (MRC) of all received signals. This optimization is based on the bit error probability (BEP) at the destination after K transmissions.
Keywords :
automatic repeat request; diversity reception; error statistics; radio links; K transmissions; bit error probability; cooperative automatic repeat request; maximum ratio combining; opportunisitic amplify relaying; opportunisitic forward relaying; optimal transmission policy; selective combining; source-relay-destination transmission; truncated cooperative ARQ protocols; Automatic repeat request; Circuits and systems; Diversity reception; Error probability; Fading; Protocols; Quality of service; Relays; Signal to noise ratio; Wireless networks;
Conference_Titel :
Signals, Circuits and Systems (SCS), 2009 3rd International Conference on
Conference_Location :
Medenine
Print_ISBN :
978-1-4244-4397-0
Electronic_ISBN :
978-1-4244-4398-7
DOI :
10.1109/ICSCS.2009.5412683
