DocumentCode
999087
Title
Polyphase filtered OFDM transmission system
Author
Lee, C.S. ; Yoo, K.Y.
Author_Institution
Sch. of Electr. Eng. & Comput. Sci., Hanyang Univ., Ansan, South Korea
Volume
40
Issue
11
fYear
2004
fDate
5/27/2004 12:00:00 AM
Firstpage
687
Lastpage
688
Abstract
A polyphase filtered orthogonal frequency division multiplexing (PF-OFDM) technique is presented. The proposed structure uses a modified discrete Fourier transform transmultiplexer to achieve greater spectral efficiency than an OFDM system, while preserving backward compatibility with it. The prototype PF-OFDM filter has excellent time and frequency localisation properties, which make it possible to eliminate a guard interval and easily suppress interchannel interference.
Keywords
OFDM modulation; adjacent channel interference; channel bank filters; discrete Fourier transforms; interference suppression; transmultiplexing; DFT transmultiplexer; PF-OFDM filter; backward compatibility; frequency localisation; guard interval elimination; interchannel interference; modified discrete Fourier transform transmultiplexer; orthogonal frequency division multiplexing; polyphase filtered OFDM transmission system; spectral efficiency; time localisation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20040484
Filename
1302807
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