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A Recursive ICI Cancellation Technique for Cooperative STBC-OFDM Systems with Carrier Frequency Offsets
Yeong-Jun KIM Hyun-Il YOO Kyung-Soo WOO Heesoo LEE Yong-Soo CHO
Publication
IEICE TRANSACTIONS on Communications
Vol.E92-B
No.9
pp.2972-2975 Publication Date: 2009/09/01 Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.2972 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: cooperative STBC, multiple CFO, OFDM, cooperative diversity,
Full Text: PDF(197.6KB)>>
Summary:
In this letter, a recursive ICI cancellation technique for cooperative space-time block coded orthogonal frequency division multiplexing (STBC-OFDM) systems is proposed to mitigate the intercarrier interference (ICI) caused by multiple carrier frequency offsets (CFOs) in cooperative transmission. The proposed technique is shown to mitigate the noise enhancement effect on the STBC-OFDM signals caused by multiple CFOs, and to be effective in reducing ICI especially when the system has a large FFT size and multiple CFOs.
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