Optical WDM Multicasting Design under Wavelength Conversion Constraints

• HONDA H.

  Graduate School of Information Science and Technology, Osaka University

• TODE Hideki

  Graduate School of Information Science and Technology, Osaka University

• MURAKAMI Koso

  Graduate School of Information Science and Technology, Osaka University

抄録

In the next-generation networks, ultra high-speed data transmission will become necessary to support a variety of advanced point-to-point and multipoint multimedia services with stringent quality-of-service (QoS) constraints. Such a requirement desires the realization of optical WDM networks. Researches on multicast in optical WDM networks have become active for the purpose of efficient use of wavelength resources. Since multiple channels are more likely to share the same links in WDM multicast, effective routing and wavelength assignment (RWA) technology becomes very important. The introduction of the wavelength conversion technology leads to more efficient use of wavelength resources. This technology, however, has problems to be solved, and the number of wavelength converters will be restricted in the network. In this paper, we propose an effective WDM multicast design method on condition that wavelength converters on each switching node are restricted, which consists of three separate steps : routing, wavelength converter allocation, and wavelength assignment. In our proposal, preferentially available waveband is classified according to the scale of multicast group. Assuming that the number of wavelength converters on each switching node is limited, we evaluate its performance from a viewpoint of the call blocking probability.

収録刊行物

• IEICE TRANS. COMMUN., B

  IEICE TRANS. COMMUN., B 88 (5), 1890-1897, 2005

  一般社団法人電子情報通信学会

キーワード

• multicast
• routing and wavelength assignment
• waveband classification
• wavelength conversion

詳細情報

• CRID: 1570572702364270592
• NII論文ID: 110003222860
• NII書誌ID: AA10826261
• ISSN: 09168516
• 本文言語コード: en
• データソース種別:
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