A multiuser detection based on quantum PSO with pareto optimality for STBC-MC-CDMA system

Author

Liu, Hongwu ; Song, Gaojun

Author_Institution

Sch. of Inf. Eng., Nanchang Hangkong Univ., Nanchang, China

fYear

2009

fDate

16-18 Oct. 2009

Firstpage

652

Lastpage

655

Abstract

A multiuser detection based on quantum particle swarm optimization (QPSO) with Pareto optimality is proposed for the space-time block coded-multicarrier code-division multiple-access (STBC-MC-CDMA) system. Due to the spatial diversity, the signals received at the different antennas are faded independently, resulting in an independent log-likelihood function (LLF) for each antenna. To resolve the multi-objective dilemma when choosing one signal estimation for multiple receive-antenna-branches, each quantum particle updates its value in a Pareto optimal way. Simulations and comparisons with the QPSO and the maximum likelihood detection (MLD) verified the effectiveness of the proposed scheme.

Keywords

Pareto optimisation; block codes; code division multiple access; diversity reception; maximum likelihood detection; multiuser detection; particle swarm optimisation; receiving antennas; space-time codes; Pareto optimality; STBC-MC-CDMA system; independent log-likelihood function; maximum likelihood detection; multiuser detection; quantum particle swarm optimization; receiving antennas; signal estimation; space-time block coded-multicarrier code-division multiple-access; spatial diversity; Estimation; Fading; Maximum likelihood detection; Multiaccess communication; Multiuser detection; Pareto analysis; Particle swarm optimization; Receiving antennas; Signal resolution; Spatial resolution; PSO; Pareto optimality; STBC-MC-CDMA; quantum;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4816-6

Electronic_ISBN

978-1-4244-4817-3

Type

conf

DOI

10.1109/ICCOMTA.2009.5349121

Filename

5349121