Title :
An adaptive space-time coding based relay allocation scheme in AF cooperative systems
Author :
Jin, Seung-Ri ; Kim, Joontae ; Choi, Won-Chul ; Park, Dong-Jo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., KAIST, Daejeon, South Korea
Abstract :
An adaptive relay allocation scheme for multi-user cooperative communication systems with amplify-and-forward (AF) relays is investigated. We consider maximizing system capacity while guaranteeing the QoS (Quality of Service) of each user. Proposed relay allocation scheme uses space-time coding technique. It performs well in allocating relay nodes to multiple source-destination pairs. The proposed algorithm enhances system performance without loss of diversity.
Keywords :
adaptive codes; diversity reception; multiuser channels; optimisation; quality of service; space-time codes; QoS; adaptive space-time coding; amplify-and-forward cooperative system; multiple source-destination pair; multiuser cooperative communication system; optimization; relay allocation scheme; transmit diversity; Collaboration; Computer science; Cooperative systems; Diversity methods; Quality of service; Relays; Signal design; System performance; Telephony; Tin;
Conference_Titel :
Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on
Conference_Location :
Icheon
Print_ISBN :
978-1-4244-4521-9
Electronic_ISBN :
978-1-4244-4522-6
DOI :
10.1109/ISCIT.2009.5341108
