Performance of MIMO-OFDM System with Adaptive Beamforming Algorithm

Author

Lee, Nam Suk ; Choi, Yong Seouk ; Kim, Kyung Soo ; Kim, Chan Kyu

Author_Institution

Electron. & Telecommun. Inst., Seoul

fYear

2007

Firstpage

656

Lastpage

660

Abstract

In this paper, the new technique combining space- time decoder with beamforming is proposed for an orthogonal frequency division multiplexing (OFDM) system with multi- input multi-output (MIMO). Through the proposed technique for MIMO-OFDM, the multibeams are formed toward each multi-transmitter antenna of the desired user. Therefore, the performance of MIMO-OFDM system is very improved by the proposed techniques that can reduce cochannel interference(CCI) and obtain diversity gain. BER performance improvement of the proposed approach is investigated through computer simulation in the multi-users environment.

Keywords

MIMO communication; OFDM modulation; cochannel interference; space-time codes; BER; MIMO-OFDM systems; adaptive beamforming algorithm; cochannel interference; computer simulation; diversity gain; multi-transmitter antenna; orthogonal frequency division multiplexing system; space-time decoder; Adaptive systems; Array signal processing; Decoding; Diversity methods; MIMO; OFDM; Receiving antennas; Signal processing algorithms; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th

Conference_Location

Baltimore, MD

ISSN

1090-3038

Print_ISBN

978-1-4244-0263-2

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2007.147

Filename

4349796