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Block Precoding Based ICI Mitigation Technique for OFDM System

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2 Author(s)
Yikui Zhai ; Sch. of Inf., Wuyi Univ., Jiangmen, China ; Ying Xu

In order to mitigate the inter-carrier interference (ICI)which severely degrades the performance of Orthogonal Frequency Division Multiplexing (OFDM) system, an improved zero-forcing equalization method based on precoding is proposed. By choosing the appropriate precoders, the system can achieve maximum multipath diversity gain and Doppler diversity gain. A block precoding method has also been applied to reduce the complexity of precoder design and decrease the computational complexity. Simulation results show that the proposed technique can mitigate the ICI effectively and improve the BER performance of OFDM system.

Published in:

Circuits, Communications and Systems, 2009. PACCS '09. Pacific-Asia Conference on

Date of Conference:

16-17 May 2009

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