BER analysis of ST-Block coded MIMO-OFDM systems with frequency domain equalization in quasi-static mobile channels

Author

Gupta, Bhasker ; Saini, Davinder S.

Author_Institution

Deptt. of ECE, Jay Pee Univ. of Inf. Technol., Waknaghat, India

fYear

2011

fDate

16-18 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) has become one of the key technologies for the Beyond 3G and 4G broadband wireless communications. MIMO channels increases the capacity (by a factor of the minimum number of transmit and receive antennas), data rate and immunity to Inter Symbol Interference (ISI) (due to concatenation with OFDM) particularly under frequency selective channels. To increase reliability and for robust transmission, coding can be done in space, time and frequency domains provided by MIMO-OFDM. In this Paper, a general Space-Time Block Coding (STBC) structure is presented in MIMO-OFDM systems. BER performance of STBC along with different equalizers is investigated and then optimum equalization method is suggested. Furthermore, Simulations are carried out with 2 transmit, 1 receive antenna and then with 2 transmit, 2 receive antenna MIMO-OFDM systems under both frequency flat and selective channels.

Keywords

3G mobile communication; 4G mobile communication; MIMO communication; OFDM modulation; antenna arrays; equalisers; error statistics; intersymbol interference; receiving antennas; space-time block codes; telecommunication channels; transmitting antennas; 3G broadband wireless communications; 4G broadband wireless communications; BER analysis; BER performance; ISI; MIMO channels; ST-block coded MIMO-OFDM systems; STBC; equalization method; frequency domain equalization; inter symbol interference; multiple-input multiple-output orthogonal frequency division multiplexing; quasi-static mobile channels; receive antenna; selective channels; space-time block coding; transmit antenna; Bit error rate; Decision feedback equalizers; OFDM; Receiving antennas; Transmitting antennas; Wireless communication; DFE equalizer; MIMO-OFDM; ML equalizer; ST coding; ZF equalizer;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2011 Annual IEEE

Conference_Location

Hyderabad

Print_ISBN

978-1-4577-1110-7

Type

conf

DOI

10.1109/INDCON.2011.6139432

Filename

6139432