Presentation 2003/11/13
Adaptive Array Suppressing Inter Symbol Interference Based on Frequency Characteristics in OFDM System
Keisuke HIGUCHI, Hideichi SASAOKA,
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Abstract(in English) This paper examined the adaptive array which suppressed only the delayed signals out of the guard interval in the OFDM system. The proposed method targets the OFDM system with the constant amplitude on signal point of the subcarrier. In this case, the frequency characteristic does not depend on modulation when the delayer signal wave within the guard interval. The proposed method suppresses the delayed signal out of the guard interval by using this frequency characteristic. This method does not need a known reference signal and estimation of channel characteristic. However, there is a problem in the convergence characteristic because the proposed method performs weight control with a blind processing. For this problem, this paper also proposes the method of emphasizing the error to reference signal. The BER characteristic is evaluated in the static multipath channel and Rayleigh fading channel. The results show that the proposed method suppresses the delayed signals out of the guard interval effectively.
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Keyword(in English) OFDM / adaptive array antenna / Frequency chracteristic / blind processing
Paper # A・P2003-156,RCS2003-162
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Committee AP
Conference Date 2003/11/13(1days)
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Registration To Antennas and Propagation (A・P)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Adaptive Array Suppressing Inter Symbol Interference Based on Frequency Characteristics in OFDM System
Sub Title (in English)
Keyword(1) OFDM
Keyword(2) adaptive array antenna
Keyword(3) Frequency chracteristic
Keyword(4) blind processing
1st Author's Name Keisuke HIGUCHI
1st Author's Affiliation Graduate School of Engineering, Doshisha University()
2nd Author's Name Hideichi SASAOKA
2nd Author's Affiliation Graduate School of Engineering, Doshisya University
Date 2003/11/13
Paper # A・P2003-156,RCS2003-162
Volume (vol) vol.103
Number (no) 456
Page pp.pp.-
#Pages 6
Date of Issue