DocumentCode :
2123817
Title :
A scheme for cancelling intercarrier interference using partial response encoding for MIMO-OFDM systems
Author :
Zhang, Yang ; Li, Jiandong ; Pang, Lihua
Author_Institution :
Broadband Wireless Commun. Lab., Xidian Univ., Xi´´an, China
fYear :
2009
fDate :
13-16 Sept. 2009
Firstpage :
241
Lastpage :
245
Abstract :
Multiple-input multiple-output (MIMO) antennas combined with orthogonal frequency division multiplexing (OFDM) are very attractive for high data rate communications. However, MIMO-OFDM systems are very vulnerable to time selective fading as channel time variation destroys the orthogonality among subcarriers, causing serious intercarrier interference (ICI). In this paper, we employ optimal frequency domain partial response coding (PRC) in MIMO-OFDM systems over frequency selective, fast fading channels to mitigate ICI. We focus on deriving, via an analytical approach, a tractable, closed-form expression of carrier-to-interference ratio (CIR) to quantify the impact of time selective fading and demonstrate the effectiveness of PRC in mitigating ICI in MIMO-OFDM systems. From the numerical results, PRC can effectively increase CIR and the improvement is proportional to the number of subcarriers and the coding length.
Keywords :
MIMO communication; OFDM modulation; antenna arrays; encoding; intercarrier interference; interference suppression; MIMO-OFDM systems; carrier-to-interference ratio; high data rate communications; intercarrier interference cancellation; multiple-input multiple-output antennas; orthogonal frequency division multiplexing; partial response encoding; time selective fading; Closed-form solution; Encoding; Fading; Frequency domain analysis; Interference cancellation; MIMO; OFDM; Partial response channels; Robustness; Wireless communication; Intercarrier interference; multiple input multiple output; orthogonal frequency division multiplexing; partial response coding; time selective fading;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
Type :
conf
DOI :
10.1109/PIMRC.2009.5449737
Filename :
5449737
Link To Document :
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