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

fYear

2009

fDate

28-30 Sept. 2009

Firstpage

1178

Lastpage

1179

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCIT.2009.5341108

Filename

5341108