DocumentCode :
3560899
Title :
A Novel Distributed Antenna Selection Scheme for Fixed-Gain Amplify-and-Forward Relaying Systems
Author :
Haiyang Ding ; Jianhua Ge ; da Costa, Daniel Benevides ; Tsiftsis, Theodoros
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Volume :
61
Issue :
6
fYear :
2012
fDate :
7/1/2012 12:00:00 AM
Firstpage :
2836
Lastpage :
2842
Abstract :
This paper proposes a novel distributed transmit antenna selection (AS) concept for dual-hop fixed-gain amplify-and-forward (AF) relaying systems, where a multiantenna source transmits information to a single-antenna destination by using a single-antenna half-duplex relay. By invoking a local channel information exploitation/decision mechanism along with decision feedback between terminals, a distributed AS (DAS) scheme is formulated. Compared with the optimal/suboptimal AS, DAS can maintain a low and constant delay/feedback overhead, irrespective of the number of transmit antennas. Moreover, asymptotic outage analysis reveals that DAS can still achieve full diversity order. In addition, it is numerically shown that when the relay is deployed in an outage-optimal manner, DAS can attain very close outage performance to that of the optimal AS.
Keywords :
amplify and forward communication; antenna arrays; decision theory; diversity reception; probability; wireless channels; asymptotic outage analysis; constant delay; cooperative diversity; cooperative relaying techniques; decision feedback; distributed AS scheme; distributed transmit antenna selection scheme; dual-hop fixed-gain amplify-and-forward relaying systems; feedback overhead; full diversity order; local channel information decision mechanism; local channel information exploitation mechanism; multiantenna source; outage probability; single-antenna destination; single-antenna half-duplex relay; wireless channels; Antenna arrays; Antenna feeds; Relays; Signal to noise ratio; Strontium; Transmitting antennas; Antenna selection (AS) schemes; cooperative diversity; fixed-gain relays; outage probability;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
Conference_Location :
5/4/2012 12:00:00 AM
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2012.2197872
Filename :
6195034
Link To Document :
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