Performance evaluation of capacity-aware MIMO beamforming schemes in OFDM-SDMA systems

Author

Sulyman, Ahmed Iyanda ; Hefnawi, Mostafa

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

Volume

58

Issue

1

fYear

2010

fDate

1/1/2010 12:00:00 AM

Firstpage

79

Lastpage

83

Abstract

This paper presents the symbol error rate (SER) performance of a capacity-aware adaptive MIMO beamforming scheme, which seeks iteratively, the beamforming weight vectors that enhance the capacity of OFDM-SDMA systems. We derive closed-form expressions for the SER performance of OFDM-SDMA systems, with MIMO-MRC and the proposed capacity-aware MIMO beamforming scheme. It is shown that the capacity-aware MIMO beamforming scheme enhances the SER performance of OFDM-SDMA systems, and outperforms conventional beamforming schemes such as the MIMO-MRC system.

Keywords

MIMO systems; OFDM modulation; array signal processing; performance evaluation; space division multiple access; MIMO-MRC system; OFDM-SDMA systems; capacity-aware MIMO beamforming schemes; performance evaluation; symbol error rate; Antenna arrays; Array signal processing; Bit error rate; Channel capacity; Closed-form solution; Error analysis; Frequency division multiplexing; MIMO; OFDM; Transmitting antennas; MIMO beamforming, OFDM-SDMA systems; capacity, symbol error rate (SER);

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2010.01.080111

Filename

5397900