Joint Transmit Diversity Optimization and Relay Selection for Multi-Relay Cooperative MIMO Systems Using Discrete Stochastic Algorithms

Author

Clarke, Patrick ; De Lamare, Rodrigo C.

Author_Institution

Commun. Res. Group, Univ. of York, York, UK

Volume

15

Issue

10

fYear

2011

fDate

10/1/2011 12:00:00 AM

Firstpage

1035

Lastpage

1037

Abstract

We propose a joint discrete stochastic optimization based transmit diversity selection (TDS) and relay selection (RS) algorithm for decode-and-forward (DF), cooperative multiple-input multiple-output (MIMO) systems with a non-negligible direct path. TDS and RS are performed jointly with continuous least squares channel estimation (CE) without the need for inter-relay communication and linear minimum mean square error (MMSE) receivers are used at all nodes. The performance of the proposed scheme is evaluated via bit-error rate (BER) comparisons and diversity analysis, and is shown to converge to the optimum exhaustive solution.

Keywords

MIMO communication; channel estimation; cooperative communication; decode and forward communication; diversity reception; error statistics; mean square error methods; radio receivers; stochastic processes; BER comparison; MMSE receiver; RS algorithm; bit-error rate; continuous least squares channel estimation; cooperative multiple-input multiple-output system; decode-and-forward system; discrete stochastic algorithm; discrete stochastic optimization; diversity analysis; joint transmit diversity optimization; linear minimum mean square error receiver; multirelay cooperative MIMO system; nonnegligible direct path; relay selection; transmit diversity selection; Antennas; Bit error rate; Convergence; Joints; MIMO; Optimization; Relays; MIMO relaying; cooperative systems; relay selection; transmit diversity;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.082611.102262

Filename

6008528