Title :
Performance improvement for correlated 4×4 MIMO-OFDM systems by generalized prefix approach
Author :
Acar, Y. ; Cooklev, Todor ; Dogan, Halit ; Yildiz, Huseyin Ugur
Author_Institution :
Dept. of Electron. Eng., Istanbul Kultur Univ., Istanbul, Turkey
Abstract :
Antenna correlation limits the multiplexing gain achieved by practical MIMO-OFDM systems and degrades the performance significantly. Recently, investigations are focused to reduce the antenna correlation by the designing new antenna structures. Differently, in this paper, we propose the generalized prefix approach to solve problem for correlated MIMO-OFDM system. It is shown that the proposed generalized prefix for 4×4 MIMO-OFDMexhibits a gain of about 8 dB over the conventional 4×4 MIMO-OFDM system at BER = 10-4.
Keywords :
MIMO communication; OFDM modulation; correlation methods; receiving antennas; transmitting antennas; IEEE 802.11n; IEEE 802.16; LTE-advanced; antenna correlation; correlated 4x4 MIMO-OFDM systems; gain 8 dB; generalized prefix approach; high data rate wireless systems; multiple-input multiple-output channel correlation; multiplexing gain; orthogonal frequency-division multiplexing; performance improvement; receive antennas; transmit antennas; Bit error rate; Correlation; Gain; MIMO; OFDM; Receiving antennas; Generalized prefix; channel correlation; multiple-input multiple-output (MIMO); orthogonal frequency-division multiplexing (OFDM);
Conference_Titel :
Signal Processing and Communication (ICSC), 2013 International Conference on
Conference_Location :
Noida
Print_ISBN :
978-1-4799-1605-4
DOI :
10.1109/ICSPCom.2013.6719779
