Presentation 1999/1/21
Applying the DCMP Adaptive Array to the OFDM-CDMA Systems
Takeshi URAGUCHI, Nobuyoshi KIKUMA, Naoki INAGAKI,
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Abstract(in English) DS/CDMA systems feature being extremely tolerant of interference and fading. However, they have a serious problem that there occur so-called co-channel interferences due to the correlation between the spreading codes of co-channels. So, the quality of communication might be degraded. To overcome this problem, various systems have been proposed, which suppress co-channel interferences by utilizing adaptive arrays. This paper proposes a new system, which applies the DCMP adaptive array to the OFDM-CDMA systems. In this system, an array response vector of the desire signal can be estimated by the ESPRIT algorithm with the adaptive spatial averaging in the frequency domain. Computer simulation results show that the proposed system can suppress the interferences even with effects of the Doppler shift and mutual coupling of the array.
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Keyword(in English) OFDM signal / DS/CDMA / DCMP adaptive array / adaptive spatial averaging technique / ESPRIT algorithm / mutual coupling
Paper # A・P98-140
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Conference Date 1999/1/21(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Applying the DCMP Adaptive Array to the OFDM-CDMA Systems
Sub Title (in English)
Keyword(1) OFDM signal
Keyword(2) DS/CDMA
Keyword(3) DCMP adaptive array
Keyword(4) adaptive spatial averaging technique
Keyword(5) ESPRIT algorithm
Keyword(6) mutual coupling
1st Author's Name Takeshi URAGUCHI
1st Author's Affiliation Department of Electrical and Computer Engineering, Nagoya Institute of Technology()
2nd Author's Name Nobuyoshi KIKUMA
2nd Author's Affiliation Department of Electrical and Computer Engineering, Nagoya Institute of Technology
3rd Author's Name Naoki INAGAKI
3rd Author's Affiliation Department of Electrical and Computer Engineering, Nagoya Institute of Technology
Date 1999/1/21
Paper # A・P98-140
Volume (vol) vol.98
Number (no) 539
Page pp.pp.-
#Pages 8
Date of Issue