Presentation 1997/6/19
Quadriphase M-ary Signal Design for Approximately Synchronized CDMA Systems without Co-Channel Interference
Naoki SUEHIRO, Hideyuki TIRII, Shinya MATSUFUJI,
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Abstract(in English) Suehilo has proposed a quadriphase signal design method for the uplink of the cellular CDMA mobile communication systems. The designed signals work without co-channel interference when the systems are synchronized approximately. The designed signals are free from the influence of multipath signals within some delay. The filters for the designed signals can be realized as SAW devices. In this paper we assign plural quadriphase signals as M-ary signals for each user so that the information-transmission rate is increased. The property of without co-channel interference remains the same, but the multipath property becomes a little bit worse. The filters for M-ary signals can also be realized as SAW devices.
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Keyword(in English) cellular CDMA / approximate synchronization / co-channel interference
Paper # SAT97-24
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Committee SAT
Conference Date 1997/6/19(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Quadriphase M-ary Signal Design for Approximately Synchronized CDMA Systems without Co-Channel Interference
Sub Title (in English)
Keyword(1) cellular CDMA
Keyword(2) approximate synchronization
Keyword(3) co-channel interference
1st Author's Name Naoki SUEHIRO
1st Author's Affiliation Institute of Applied Physics, University of Tsukuba()
2nd Author's Name Hideyuki TIRII
2nd Author's Affiliation Institute of Applied Physics, University of Tsukuba
3rd Author's Name Shinya MATSUFUJI
3rd Author's Affiliation Department of Information Science, Saga University
Date 1997/6/19
Paper # SAT97-24
Volume (vol) vol.97
Number (no) 103
Page pp.pp.-
#Pages 8
Date of Issue