Wavelength Allocation Algorithm Research on Energy Saving and Load Balance in TWDM-PON

• 1、School of Information and Communication Engineering, Beijing University of Posts and Telecommunications,Beijing 100876

Abstract：According to the current application situation and research status, the whole business of the NG-PON access network BBS divides the research into NG-PON1 and NG-PON2 two stages. TWDM-PON is regarded as the one of the most promising optical access solutions. This architecture can be forward compatible with the existing TDM-PON system in order to realize a smooth network upgrade, and can dynamically allocate wavelength and time slot resources to cope with business flow fluctuation. FSAN affirmed that TWDM - PON is NG-PON2 technology choice in the future in 2012. Considering the sudden and instability traits of access flow, this paper presents a wavelength allocation algorithm, by solving the problem of multi-objective algorithms, allocating the flow of different wavelengths, and making the whole TWDM-PON system have more reasonable use of resources. Wavelength allocation by this method, not only can save energy of the system, but also take load balancing into account, thus to ensure the user fairness and bring a better experience for users. The algorithm is verified the effect of energy save and load balancing by modeling and simulation.

Keywords： TWDM-PON Wavelength Allocation Energy Saving Load Balance