Acta Metallurgica Sinica(English letters) ›› 2015, Vol. 22 ›› Issue (1): 89-94.doi: 10.1016/S1005-8885(15)60630-6

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Network coding based all-optical multicast in WDM networks

曲志坚 Zhang Xianwei, Shi Shaojian, Cao Yanfeng, Zhao Mingbo   

  1. 山东理工大学
  • 收稿日期:2014-04-25 修回日期:2014-06-26 出版日期:2015-02-28 发布日期:2015-02-28
  • 通讯作者: 曲志坚 E-mail:handuhandu@163.com
  • 基金资助:

    国家自然科学基金

Network coding based all-optical multicast in WDM networks

Zhi-Jian QU   

  • Received:2014-04-25 Revised:2014-06-26 Online:2015-02-28 Published:2015-02-28
  • Contact: Zhi-Jian QU E-mail:handuhandu@163.com
  • Supported by:

    National Natural Science Foundation of China

摘要: Wavelength division multiplexing (WDM) has been becoming a promising solution to meet the rapidly growing demands on bandwidth. Multicast in WDM networks by employing free wavelength is an efficient approach to saving bandwidth and cost. However, the free wavelength may not identical between different hops in a multicast light-path, particularly in heavy load optical WDM networks. In order to implement multicast applications efficiently, a network coding (NC) technique was introduced into all-optical WDM multicast networks to solve wavelength collision problem between the multicast request and the unicast request. Compared with the wavelength conversion based optical multicast, the network coding based optical multicast can achieve better multicast performance with paying lower cost.

关键词: NC, all-optical multicast, WDM networks, wavelength conversion

Abstract: Wavelength division multiplexing (WDM) has been becoming a promising solution to meet the rapidly growing demands on bandwidth. Multicast in WDM networks by employing free wavelength is an efficient approach to saving bandwidth and cost. However, the free wavelength may not identical between different hops in a multicast light-path, particularly in heavy load optical WDM networks. In order to implement multicast applications efficiently, a network coding (NC) technique was introduced into all-optical WDM multicast networks to solve wavelength collision problem between the multicast request and the unicast request. Compared with the wavelength conversion based optical multicast, the network coding based optical multicast can achieve better multicast performance with paying lower cost.

Key words: NC, all-optical multicast, WDM networks, wavelength conversion