Title :
Performance of Multiuser MIMO-OFDM System with Fractional Sampling in Street Canyon Area
Author :
Eguchi, Kenta ; Inamori, Mamiko ; Sanada, Yukitoshi
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
This paper presents performance of a multiuser MIMO-OFDM (MU- MIMO) system with Fractional Sampling (FS) on a street canyon model. The MU-MIMO system has been investigated to improve the channel capacity in cellular systems. However the capacity of the MU-MIMO is deteriorated in an urban environment such as a street canyon due to a high correlation between antennas. Through FS it is possible to separate multipath components and realize diversity. FS works effectively when the correlation between the users are high. Numerical results through computer simulation shows that the capacity improves with the FS by about 3.5 bps/Hz.
Keywords :
MIMO communication; OFDM modulation; antenna arrays; channel capacity; multipath channels; multiuser channels; signal sampling; MU-MIMO system; antennas; cellular systems; channel capacity; computer simulation; fractional sampling; multipath components; multiuser MIMO-OFDM system; street canyon area; Channel capacity; Correlation; MIMO; OFDM; Receiving antennas;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6398924
