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A Frame Detector for Zero-Padded OFDM Systems
Young-Hwan YOU Eu-Suk SHIM Hyoung-Kyu SONG
Publication
IEICE TRANSACTIONS on Communications
Vol.E89-B
No.3
pp.963-965 Publication Date: 2006/03/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.3.963 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Transmission Systems and Transmission Equipment for Communications Keyword: OFDM, zero padding, frame synchronization, multipath fading,
Full Text: PDF(381.2KB)>>
Summary:
This letter proposes an orthogonal frequency division multiplexing (OFDM) frame synchronization scheme when the guard interval (GI) consists of a zero-padded (ZP) sequence. The frame synchronization method uses the ZP symbol where nothing is transmitted for GI so that the drop in received power can be detected to find the beginning of the frame. Simulations reveal that this method significantly improves synchronization performance of the ZP-OFDM system in a multipath fading channel.
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