Tree-Based Reparameterization for Symbol Detection in Spatially Multiplexed MIMO Systems in Frequency Flat Fading

Author

Vithanage, C.M. ; Andrieu, C. ; Piechocki, R.J. ; Coon, J.P.

Author_Institution

Dept. of Math., Bristol Univ.

fYear

2006

fDate

2-5 July 2006

Firstpage

1

Lastpage

5

Abstract

Reduced complexity detection of spatially multiplexed data transmissions under frequency flat fading is considered. Noting that the optimal detection is the generation of marginal distributions of a joint probability distribution, we use the approximate marginal generating algorithm termed the tree-based reparameterization. The resulting system complexity is having an order which is less than quadratic in the number of transmit antennas. Simulation of a 8 times 8 BPSK system shows a coded bit error rate of 10^-3 at an SNR level of only IdB greater than required by the optimal method

Keywords

MIMO communication; error statistics; fading channels; phase shift keying; signal detection; statistical distributions; trees (mathematics); BPSK system; frequency flat fading; joint probability distribution; optimal detection; spatially multiplexed MIMO systems; symbol detection; transmit antennas; tree-based reparameterization; Antennas and propagation; Belief propagation; Detectors; Fading; Frequency; Graphical models; MIMO; Probability distribution; Receiving antennas; Transmitting antennas; MIMO; approximate inference; belief propagation; tree-based reparameterization;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on

Conference_Location

Cannes

Print_ISBN

0-7803-9710-X

Electronic_ISBN

0-7803-9711-8

Type

conf

DOI

10.1109/SPAWC.2006.346366

Filename

4153854