Reverse Link Bandwidth Efficiency of a Spectrally Overlapped CDMA System
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概要
- 論文の詳細を見る
The reverse link bandwidth efficiency of a spectrally overlapped CDMA system with fast transmit power control is evaluated to find the optimum overlapping, where the band-width efficiency is defined as the maximum aggregate bit rate of all subsystems per unit bandwidth (bps/Hz). Single and multiple cell environments are considered. Besides the rectangular chip pulse, the impact of a pulse-shaping filter is discussed. It is found that the raised cosine spectrum pulse shaping helps to increase the bandwidth efficiency and strict pulse shaping filter problem can be avoided if a large number of subsystems are overlapped. It is also found that the optimum carrier spacing remains unchanged irrespective of the power delay profile shape of the multipath channel, whether multipath fading exists or not, and whether a single cell or multiple cell system is considered. However, the bandwidth efficiency strongly depends on them and the impacts of the related parameters are discussed.
- 社団法人電子情報通信学会の論文
- 2002-04-01
著者
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Adachi Fumiyuki
Wireless Laboratories Ntt Mobile Communications Network Inc.: Presently Electrical And Communication
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Adachi F
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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ADACHI Fumiyuki
Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University
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Adachi Fumiyuki
Department Of Electrical And Coimmunicalion Engineering Graduate School Of Engineering.tohoku Univer
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Adachi Fumiyuki
The Dept. Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Universi
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Adachi Fumiyuki
The Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Uni
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Adachi Fumiyuki
Wireless Lab. Ntt Docomo Inc.:department Of Electrical Communications At Graduate School Of Engineer
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Adachi Fumiyuki
The Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Uni
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Adachi Fumiyuki
The Wireless Laboratories Ntt Docomo Inc. : Presently With The Department Of Electrical Communicatio
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KLM Duk
Wireless Lab., NTT DoCoMo, Inc.;the School of Information & Communication Engineering, Inha universi
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Klm Duk
Wireless Lab. Ntt Docomo Inc.;the School Of Information & Communication Engineering Inha Univers
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