Capacity Analysis of Spectrally Overlaid Narrowband and Wideband CDMA Systems for Future Mobile Communications Services
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概要
- 論文の詳細を見る
As a means of CDMA network evolution toward future wireless services, a spectral overlay of narrowband CDMA (N-CDMA) and wideband CDMA (W-CDMA) systems is proposed in [8]. In order to justify the overlaying strategy, the reverse link capacity is examined in the same work. Although the capacity of conventional CDMA cellular systems is usually limited by the reverse link, the limit could occur at the forward link depending on the transmission technologies adopted by specific CDMA proposals. Especially, the number of users that can be simultaneously accommodated in the system would be limited by the forward link in future mobile service environments where unequal traffic is offered between two links. In this paper, we first examine the forward link capacity of the spectrally overlaid narrowband and wideband CDMA (N/W CDMA) system. And we compare it with the reverse link capacity to obtain the overall performance. The effects of various parameters on the capacity of N/W CDMA system are numerically evaluated for different mobile environments.
- 社団法人電子情報通信学会の論文
- 1999-08-25
著者
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JEONG Dong
Department of Thoracic and Cardiovascular Surgery, Seoul National University Boramae Medical Center
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Jeong Dong
Department Of Thoracic And Cardiovascular Surgery Seoul National University Boramae Medical Center
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KIM Dongwoo
R&D Center, Shinsegi Telecomm Inc., POSCO Center
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Kim Dongwoo
R&d Center Shinsegi Telecomm Inc.
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KIM Il
R&D Center, Shinsegi Telecomm Inc.
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Jeong Dong
Department Of Electronics Engineering Hankuk University Of Foreign Studies (hufs)
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Jeong Dong
Department Of Electronics Engineering Hankuk University Of Foreign Studies
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Kim Il
R&d Center Shinsegi Telecomm Inc.
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KIM Dongwoo
R&D Center, Shinsegi Telecomm Inc.
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