Chinese Optics Letters, 2009, 7 (4): 04344, Published Online: Apr. 27, 2009  

Cyclic polling-based dynamic wavelength and bandwidth allocation in wavelength division multiplexing passive optical networks Download: 509次

Author Affiliations
Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of Posts and Telecomnunications, Beijing 100876E-mail: zhch.xie@gmail.com
Abstract
Cyclic polling-based dynamic wavelength and bandwidth allocation algorithm supporting differentiated classes of services in wavelength division multiplexing (WDM) passive optical networks (PONs) is proposed. In this algorithm, the optical line terminal (OLT) polls for optical network unit (ONU) requests to transmit data in a cyclic manner. Services are categorized into three classes: expedited forward (EF) priority, assured forwarding (AF) priority, and best effort (BE) priority. The OLT assigns bandwidth for different priorities with different strategies. Simulation results show that the proposed algorithm saves a lot of downstream bandwidth under low load and does not show the light-load penalty compared with the simultaneous and interleaved polling schemes.

Zhengcheng Xie, Hui Li, Yuefeng Ji. Cyclic polling-based dynamic wavelength and bandwidth allocation in wavelength division multiplexing passive optical networks[J]. Chinese Optics Letters, 2009, 7(4): 04344.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!