V-BLAST Adaptive Detector Based On Affine Projection Algorithm

Author

Mirzaei, Ali Akbar ; Azmi, Paeiz

Author_Institution

Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran

fYear

2006

fDate

Oct. 2006

Firstpage

1

Lastpage

4

Abstract

Bell Laboratories space-time (BLATS) wireless systems are multiple antenna communication schemes that can achieve very high spectral efficiencies in scattering environment with no increase in bandwidth or transmitted power. In this paper we propose an adaptive algorithm for detection in V-BLAST systems based on affine projection algorithm. The proposed technique can improve convergence speed compared to least mean-squares (LMS) with much reduced computational cost compared to recursive least squares (RLS). We present comparison of computational complexities of LMS, RLS, and APA-based detection algorithms. Simulation results illustrate the performance of the proposed algorithm

Keywords

affine transforms; convergence; space-time codes; Bell Laboratories space-time wireless system; V-BLAST adaptive detector; adaptive algorithm; affine projection algorithm; convergence speed; multiple antenna communication; scattering environment; Adaptive algorithm; Bandwidth; Computational efficiency; Convergence; Detectors; Least squares approximation; Least squares methods; Projection algorithms; Resonance light scattering; Transmitting antennas; Affine projection algorithm (APA); Bell Laboratories Layered Space-Time (BLAST) systems; recursive least squares (RLS);

fLanguage

English

Publisher

ieee

Conference_Titel

Communication systems, 2006. ICCS 2006. 10th IEEE Singapore International Conference on

Conference_Location

Singapore

Print_ISBN

1-4244-0411-8

Electronic_ISBN

1-4244-0411-8

Type

conf

DOI

10.1109/ICCS.2006.301368

Filename

4085663