Optimal-Routed Soft Handover in IP-Based Mobile Networks(Mobility Management)(<Special Section>Networking Technologies for Mobile Internet Systems)
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概要
- 論文の詳細を見る
The next-generation IP-based mobile network must accommodate various kinds of wireless access technologies, including W-CDMA. Although the soft handover technique should be supported if W-CDMA is used, redundant paths will be created by the soft handover scheme employed by the 3rd generation mobile communication system. This paper proposes the Network Distributed Soft Handover (NDSHO) method, which achieves soft handover control in an IP network but without any redundant paths. NDSHO continuously optimizes all routing paths by relocating the data copy point dynamically during communication according to the movement of the mobile terminal. To achieve the proposed method, this paper introduces a copy point seamless relocation method and an optimal point selection method which takes advantage of OSPF. Furthermore, we show quantitatively that NDSHO makes more efficient use of system resources than the 3rd generation system.
- 社団法人電子情報通信学会の論文
- 2004-09-01
著者
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Yabusaki Masami
NTT DoCoMo Inc.
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Hirata Shoichi
Ntt Docomo Inc.
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Kawakami H
Tokushima Univ. Tokushima‐shi Jpn
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Nishimura K
Ntt Docomo Inc.
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Hirata S
Ntt Docomo Inc.
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KAWAKAMI Hiroshi
NTT DoCoMo Network Laboratories
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NISHIMURA Kenji
NTT DoCoMo, Inc.
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Kawakami Hiroshi
Ntt Docomo Inc.
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