Title :
Performance of multi-relay collaborative hybrid-ARQ protocols over fading channels
Author :
Stanojev, Igor ; Simeone, Osvaldo ; Bar-Ness, Yeheskel ; You, Cheolwoo
Author_Institution :
New Jersey Inst. of Technol., Newark, NJ
fDate :
7/1/2006 12:00:00 AM
Abstract :
According to collaborative hybrid automatic-repeat-request (ARQ) protocols, relay stations that have been able to decode the original message from previous transmissions, collaborate with the source in future retransmissions by jointly sending a space-time codeword. In this letter, analysis of the average number of retransmissions and throughput of collaborative hybrid-ARQ Type I (i.e., without memory) and chase combining (i.e., with memory) protocols is provided for any number of relays.
Keywords :
automatic repeat request; channel coding; fading channels; space-time codes; ARQ relay station; chase combining protocol; collaborative hybrid automatic-repeat-request protocol; decoding; fading channel; space-time codeword; Antenna arrays; Automatic repeat request; Collaboration; Cyclic redundancy check; Decoding; Fading; Protocols; Relays; Switches; Throughput;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOM.2006.224407
