Presentation 1998/3/19
Interference Cancellation Performance in DS-CDMA Multicode-Packet Transmission System
Yasuo Suzuki, Kiyoshi Kobayashi,
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Abstract(in English) Multicode transmission has been proposed for high-speed DS-CDMA packet-data transmission systems. Transmission performance of such systems is degraded by multipath propagation because the cross-correlation values between the multiple codes are not zero.Although interference cancellers are very effective in this situation, the conventional methods require a great deal of calculation. We propose a fast channel-estimation method and a low-calculation-effort interference cancellation method for slotted ALOHA multicode-packet transmission systems. Computer simulations are performed in the frequency-selective Rayleigh fading model.The channel-estimation ability, the interference cancellation effect, and the sufficient cancellation-stage number are clarified.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CDMA / multicode / interference cancellation / RAKE / channel estimation / slotted ALOHA
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Conference Information
Committee ISEC
Conference Date 1998/3/19(1days)
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Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Interference Cancellation Performance in DS-CDMA Multicode-Packet Transmission System
Sub Title (in English)
Keyword(1) CDMA
Keyword(2) multicode
Keyword(3) interference cancellation
Keyword(4) RAKE
Keyword(5) channel estimation
Keyword(6) slotted ALOHA
1st Author's Name Yasuo Suzuki
1st Author's Affiliation NTT Wireless Systems Laboratories()
2nd Author's Name Kiyoshi Kobayashi
2nd Author's Affiliation NTT Wireless Systems Laboratories
Date 1998/3/19
Paper #
Volume (vol) vol.97
Number (no) 612
Page pp.pp.-
#Pages 6
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