Interlaced Frequency Division Duplexing Scheme for OFDM Systems Using Feedback Information

Hongku KANG  Yeyun KHO  Kanghee KIM  Kiseon KIM  

Publication
IEICE TRANSACTIONS on Communications   Vol.E86-B   No.9   pp.2815-2818
Publication Date: 2003/09/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technology
Keyword: 
orthogonal frequency division multiplexing (OFDM),  Interlaced-Frequency Division Duplexing (IFDD),  time-varying channel,  feedback information,  

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Summary: 
In this letter, we propose a robust IFDD scheme employing an interference canceller, which is used for mitigating interferences from the transmitting signal instead of complex filter bank to reduce the complexity, for the OFDM system using feedback information. According to simulation results, the proposed IFDD OFDM system does not show significant performance degradation but maintains the robustness against the fast time-varying multipath channel, while the TDD OFDM system estimating feedback information from receiving block makes serious performance degradation.