Title :
Performance of a Novel Relay-STBC-HARQ for Cooperative MIMO System
Author :
Yonghui, Chen ; Jinsong, Zhou
Author_Institution :
Dept. of Comput. Sci., Hubei Univ. of Technol., Wuhan, China
Abstract :
For a two hop cooperative relay communication system, the first hop mainly gets the diversity gain, and the second hop gets the cooperative gain. While HARQ gets the time diversity gain, space-time or the others coding has the chance to get a tradeoff between diversity gain and multiplex gain. It is significant to combine the HARQ and STBC in a cooperative MIMO system that formed by a set of cooperative relay nodes that should be silent usually. According to analysis the relationship between the VBLAST, HARQ and STBC, this paper proposed a novel Relay-STBC-HARQ strategy. Theoretical and simulation analysis show that the strategy could improve the system capacity by spatial multiplex gain and cooperative gain. This means the strategy could get a tradeoff among credible coverage, flexible BER rate, code rate and delay.
Keywords :
MIMO communication; automatic repeat request; diversity reception; space-time codes; VBLAST; cooperative MIMO system; cooperative relay communication system; multiplex gain; relay-STBC-HARQ strategy; space time coding; spatial multiplex gain; system capacity; time diversity gain; Analytical models; Communication system security; Computer security; Decoding; Diversity methods; MIMO; Relays; Spread spectrum communication; Wireless communication; Wireless sensor networks; Cooperative; HARQ; STBC; VBLAST;
Conference_Titel :
Networks Security Wireless Communications and Trusted Computing (NSWCTC), 2010 Second International Conference on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-0-7695-4011-5
Electronic_ISBN :
978-1-4244-6598-9
DOI :
10.1109/NSWCTC.2010.104
