Presentation 1999/2/18
An anti-multipath CDMA System using Complementary Code Sequences with Dummy Chips
Masao Sibatani, Noriyoshi Kuroyanagi, Shinya Matsufuji, Naoki Suehiro,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Code Division Multiple Access (CDMA)systems may be designed to be tolerant of Alternate Current (AC)components of the received noise if complementary code sequences are used. To eliminate the Direct Current (DC)component from the interference noise, modified complementary code sequences with dummy chips are explored. The dummy chips are removed by a masking circuit at the receiver. As a consequence, the modified code sequences asynchronously arrived may be viewed as almost AC component for the receiver, resulting in giving little disturbance to the demodulation Some candidate sequences giving little DC disturbance when they arrive via multipath,or they are used by othe ruser's sequences, are explored by computer simulation. An interrerence free system operating at a multipath channel may be designed if proper code sequences are used. And the system capacity will be considerably increased.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CDMA / anti-Multipath / Orthogonal code sequence / Multiuser receiver
Paper # MW98-204
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Committee MW
Conference Date 1999/2/18(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An anti-multipath CDMA System using Complementary Code Sequences with Dummy Chips
Sub Title (in English)
Keyword(1) CDMA
Keyword(2) anti-Multipath
Keyword(3) Orthogonal code sequence
Keyword(4) Multiuser receiver
1st Author's Name Masao Sibatani
1st Author's Affiliation Tokyo Engineering University:Saga University()
2nd Author's Name Noriyoshi Kuroyanagi
2nd Author's Affiliation Tokyo Engineering University:Saga University
3rd Author's Name Shinya Matsufuji
3rd Author's Affiliation / Tsukuba University
4th Author's Name Naoki Suehiro
4th Author's Affiliation
Date 1999/2/18
Paper # MW98-204
Volume (vol) vol.98
Number (no) 604
Page pp.pp.-
#Pages 6
Date of Issue