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An ICI Mitigation Method for High Speed Mobile OFDM

Yi LONG, Linling KUANG, Jianhua LU

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Summary :

This letter proposes a novel intercarrier interference (ICI) mitigation method for OFDM in time-varying multipath channels. By splitting an OFDM symbol into sub-symbols, ICI may be relieved but with price of increased inter-subsymbol-interference (ISI). The induced ISI is then cancelled by a linear filter with the use of null subcarriers. Simulations show that the proposed method may effectively mitigate ICI while improving OFDM with enhanced reliability against high Doppler spread.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.5 pp.1661-1664
Publication Date
2008/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.5.1661
Type of Manuscript
LETTER
Category
Terrestrial Radio Communications

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