Research Article
A Distributed Transmit Antenna Selection Scheme for Fixed-Gain Multi-Antenna AF Relaying Systems
@INPROCEEDINGS{10.4108/icst.crowncom.2014.255401, author={Diana Gonz\^{a}lez Gonz\^{a}lez and Jos\^{e} S. Santos Filho and Daniel da Costa}, title={A Distributed Transmit Antenna Selection Scheme for Fixed-Gain Multi-Antenna AF Relaying Systems}, proceedings={9th International Conference on Cognitive Radio Oriented Wireless Networks}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2014}, month={7}, keywords={cooperative diversity link selection outage probability relay channel transmit antenna selection}, doi={10.4108/icst.crowncom.2014.255401} }- Diana González González
José S. Santos Filho
Daniel da Costa
Year: 2014
A Distributed Transmit Antenna Selection Scheme for Fixed-Gain Multi-Antenna AF Relaying Systems
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2014.255401
Abstract
Antenna selection has arisen as an attractive strategy in multi-antenna systems due to its reduced complexity and cost. In this paper, the outage performance of a distributed transmit antenna selection scheme for dual-hop fixedgain amplify-and-forward relaying systems is investigated. Our analysis considers a multi-antenna source, a multi-antenna relay, and a single-antenna destination, in which selection combining and maximal-ratio combining are employed at the relay and destination receptions, respectively. Lower and upper bounds for the outage probability of the proposed scheme are derived as the sum of two terms, one term given in closed form and the other term given in single integral form. Moreover, asymptotic expressions for these bounds at high signal-to-noise ratio are obtained in closed form. The results show that our scheme presents full diversity order. More importantly, the underlying distributed strategy is shown to perform closely to the costly optimal centralized antenna selection.