A RWA algorithm for differentiated services with QoS guarantees in the next generation internet based on DWDM networks

Jong Gyu Hwang, Jae Il Jung, Yong Jin Park, Jung Hyun Bae, Hyun Su Song, Sung Un Kim

研究成果: Article

10 引用 (Scopus)

抜粋

A major challenge in next generation Internet (NGI) backbone networks based on dense-wavelength division multiplexing (DWDM) is the provision of guaranteed quality-of-service (QoS) for a wide variety of multimedia applications. This paper proposes a new routing algorithm called multi-wavelength minimum interference path routing (MW-MIPR) to provide more reliable QoS guarantees by consideration of the potential future network's congestion status. This improves wavelength utilization by choosing a route that does not interfere too much with potential future connection requests. Moreover, we introduce a differentiated routing and wavelength assignment (RWA) mechanism combined with recovery strategy and the proposed MW-MIPR algorithm based on the differentiated service model in the NGI. Simulation results show that the proposed MW-MIPR algorithm achieves a smaller blocking probability than dynamic routing (DR) that yields the best performance among previous RWA algorithms. And we prove that a differentiated RWA combined with a recovery capability together with the proposed routing scheme provides satisfied QoS assurance for each service class in terms of signal quality and survivability.

元の言語English
ページ(範囲)319-334
ページ数16
ジャーナルPhotonic Network Communications
8
発行部数3
DOI
出版物ステータスPublished - 2004 11
外部発表Yes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Atomic and Molecular Physics, and Optics

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