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Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 181-184

Circular Antenna Array to Suppress the Cochannel Interference in MIMO-OFDM Wireless Communication Systems

Lisheng Fan and Yongquan Jiang

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This paper proposes the circular antenna array to suppress the cochannel interference for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) modulation systems. The conventional cochannel interference suppression system employs the linear antenna array in the receiver side, and the capability of circular antenna array in suppressing cochannel interference is not investigated so far. This paper proposes the circular antenna array to the conventional cochannel interference suppression system, and derives a theoretical measurement for evaluating the cochannel interference suppression capability. Computer simulations under IEEE 802.11a demonstrate the validity of the proposed circular antenna array.

Index Terms

MIMO-OFDM, cochannel interference, circular antenna array

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