BER Analysis of Space-Frequency Block Coded MIMO-OFDM Systems Using Different Equalizers in Quasi-Static Mobile Radio Channel

Author

Gupta, Bhasker ; Saini, Davinder S.

Author_Institution

Dept. of Electron. & Commun., Jaypee Univ. of Inf. Technol., Waknaghat, India

fYear

2011

fDate

3-5 June 2011

Firstpage

520

Lastpage

524

Abstract

Multiple transmit and receive antennas can be used to form multiple-input multiple-output (MIMO) channels to increase the capacity (by a factor of the minimum number of transmit and receive antennas) and data rate. In this paper, the combination of MIMO technology and orthogonal frequency division multiplexing (OFDM) systems is considered for wideband transmission to mitigate inter symbol interference and to enhance system capacity. It owns the advantages of both MIMO and OFDM. MIMO-OFDM system exploits the space and frequency diversity simultaneously to improve the performance of system. The coding is done across OFDM sub carriers rather than OFDM symbols. In this paper, the performance of Space-Frequency (SF) block coding for MIMO-OFDM along with different equalizers is investigated. Bit Error Rate (BER) analysis is presented using different equalizers and then optimum equalization method is suggested.

Keywords

MIMO communication; OFDM modulation; block codes; channel capacity; channel coding; diversity reception; equalisers; error statistics; intersymbol interference; mobile radio; receiving antennas; transmitting antennas; wireless channels; BER analysis; OFDM subcarrier; OFDM symbol; bit error rate; frequency diversity; intersymbol interference; multiple input multiple output channel capacity; multiple transmit antenna; optimum equalization method; orthogonal frequency division multiplexing system; quasistatic mobile radio channel equalizer; receive antenna; space diversity; space frequency block coded MIMO-OFDM system; space frequency block coding; wideband transmission; Bit error rate; Encoding; Equalizers; OFDM; Receiving antennas; Transmitting antennas; DFE Equalizer; MIMO-OFDM; ML Equalizer; Space-frequency coding; ZF Equalizer;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems and Network Technologies (CSNT), 2011 International Conference on

Conference_Location

Katra, Jammu

Print_ISBN

978-1-4577-0543-4

Electronic_ISBN

978-0-7695-4437-3

Type

conf

DOI

10.1109/CSNT.2011.111

Filename

5966501