Acta Metallurgica Sinica(English letters) ›› 2012, Vol. 19 ›› Issue (1): 119-123.doi: 10.1016/S1005-8885(11)60236-7

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Improved wavelength decomposition approach for computing blocking probabilities in WRONs

杨鹏,张杰, ZHAO Yong-li,顾畹仪   

  1. 北京邮电大学
  • 收稿日期:2011-04-27 修回日期:2011-09-26 出版日期:2012-02-28 发布日期:2012-02-21
  • 通讯作者: 张杰 E-mail:lgr24@bupt.edu.cn
  • 基金资助:

    This work was supported by the National Basic Research Program of China (2010CB328204), the Hi-Tech Research and Development Program of China (2008AA01A328, 2009AA01Z255), the National Natural Science Foundation of China (60932004), RFDP Project (20090005110013) and 111 Project (B07005) of China, and the Fundamental Research Funds for the Central Universities.

Improved wavelength decomposition approach for computing blocking probabilities in WRONs

  1. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2011-04-27 Revised:2011-09-26 Online:2012-02-28 Published:2012-02-21
  • Contact: ZHANG Jie E-mail:lgr24@bupt.edu.cn
  • Supported by:

    This work was supported by the National Basic Research Program of China (2010CB328204), the Hi-Tech Research and Development Program of China (2008AA01A328, 2009AA01Z255), the National Natural Science Foundation of China (60932004), RFDP Project (20090005110013) and 111 Project (B07005) of China, and the Fundamental Research Funds for the Central Universities.

摘要:

Wavelength decomposition approach has been proposed to compute blocking probability (BP) of fixed routing in wavelength-routed optical networks (WRONs) without wavelength conversions. By means of wavelength decomposition, a WRON can be regarded as a set of different layers (colors), in which blocked traffic in one layer is overflowed to another layer. A novel iterative scheme is put forward in case of BP matching used to characterize the overflow traffic from one layer to another in this paper. Furthermore, the analysis of BP based on the improved wavelength decomposition approach is derived and results show that it yields higher calculation accuracy.

关键词:

WRONs, wavelength decomposition, blocking probabilities

Abstract:

Wavelength decomposition approach has been proposed to compute blocking probability (BP) of fixed routing in wavelength-routed optical networks (WRONs) without wavelength conversions. By means of wavelength decomposition, a WRON can be regarded as a set of different layers (colors), in which blocked traffic in one layer is overflowed to another layer. A novel iterative scheme is put forward in case of BP matching used to characterize the overflow traffic from one layer to another in this paper. Furthermore, the analysis of BP based on the improved wavelength decomposition approach is derived and results show that it yields higher calculation accuracy.

Key words:

WRONs, wavelength decomposition, blocking probabilities