Benefits of combined TDMA/CDMA operation for third generation mobile radio systems

被引：0
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作者：
Kammerlander, K
机构：
来源：
IEEE ISSSTA '96 - IEEE FOURTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES & APPLICATIONS, PROCEEDINGS, VOLS 1-3 | 1996年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The multimedial landscape requires a new approach to powerful mobile radio systems, termed Universal Mobile Telecommunication System (UMTS), which must be suited for both narrowband and broadband transmission. UMTS therefore requires a balanced hybrid multiple access scheme. This paper presents an attempt to combine the F/TDMA and F/CDMA advantages in F/T/CDMA which facilitates a favourably high economical efficiency, regarding the investments of future network operators, as well as high channel efficiencies, in terms of a high number of traffic channels per transceiver. F/T/CDMA thus leads to a low number of small BS's and a high spectral efficiency by dense frequency reuse. Furthermore, F/T/CDMA allows backward combatibility with GSM. The paper explains basic relations of mobile radio systems in regard to spectral efficiency, economical efficiency and multiple access schemes as well as the most important ETSI-UMTS requirements. A novel approach to assessing F/T/CDMA by means of joint detection (JD) techniques, termed JD-CDMA [1,2,3], will be presented. JD-CDMA allows to overcome the drawbacks of conventional CDMA mobile radio systems.
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页码：507 / 512
页数：6
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