TWDM-PON中用户流量预测的波长分配方案

doi:10.13190/j.jbupt.2017-140

北京邮电大学学报 ›› 2017, Vol. 40 ›› Issue (6): 74-79.doi: 10.13190/j.jbupt.2017-140

TWDM-PON中用户流量预测的波长分配方案

王英杰¹, 刘晓宁², 罗桓桓³, 周桂平³, 王艳茹¹

1. 北京国电通网络技术有限公司, 北京 100085;
2. 北京邮电大学信息与通信工程学院, 北京 100876;
3. 国网辽宁省电力有限公司, 沈阳 110004

收稿日期:2017-11-16 出版日期:2017-12-28 发布日期:2017-12-28
作者简介:王英杰(1964-),男,高级工程师;刘晓宁(1993-),男,硕士生,E-mail:liuxiaoning@bupt.edu.cn.
基金资助:
国家重点研发项目（2016YFB0901200）

Wavelength Allocation Scheme Based on User Traffic Prediction in TWDM-PON

WANG Ying-jie¹, LIU Xiao-ning², LUO Huan-huan³, ZHOU Gui-ping³, WANG Yan-ru¹

1. Beijing Guodiantong Network Technical Corporation Limited, Beijing 100085, China;
2. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
3. State Grid Liaoning Electric Power Corporation Limited, Shenyang 110004, China

Received:2017-11-16 Online:2017-12-28 Published:2017-12-28
Supported by:

摘要/Abstract

摘要： 为了解决目前时波分光网络（TWDM-PON）波长分配算法存在的负载不均衡、资源效率低、调谐开销大等问题，对利用用户流量请求行为的大尺度时间范围内呈现的周期性规律指导波长分配进行了研究，提出基于切换周期进行固定-动态波长分配.通过对用户未来带宽请求的有效预测，对分配到多个可用波长的多个光网络单元进行耦合分组，最后分配波长资源.所提方案结合了固定波长分配方案和最早空闲波长优先分配方案的优势，有效降低了波长调谐开销，并使得不同波长上分配的用户负载更加均衡，提高了资源利用效率和资源分配的公平性.

关键词: 波长分配, 固定-动态波长分配, 切换周期, 负载均衡, 调谐开销

Abstract: In order to solve the problems of unbalanced load, low resource efficiency and large tuning cost in the existing wavelength assignment algorithms of time wave division multiple passive optical network(TWDM-PON), the periodic distribution of wavelengths in the large scale time range of user traffic request behavior was studied. A switching cycle fixed-dynamic(SC-FD) wavelength assignment scheme was proposed, which allocates the optical netork unit assigned to multiple available wavelengths by validating the future bandwidth request of the user, and finally allocating the wavelength resources. The proposed scheme combines the advantages of fixed wavelength algorithm(FWA) and the earliest idle wavelength priority(EIWP) mechanism. Simulations show that the proposed scheme can effectively reduce the wavelength tuning cost, make the user load at different wavelengths more balanced, and improve the efficiency of resource allocation.

Key words: wavelength allocation, switching cycle fixed-dynamic, switching cycle, load balancing, tuning cost

中图分类号:

TN929.1

王英杰, 刘晓宁, 罗桓桓, 周桂平, 王艳茹. TWDM-PON中用户流量预测的波长分配方案[J]. 北京邮电大学学报, 2017, 40(6): 74-79.

WANG Ying-jie, LIU Xiao-ning, LUO Huan-huan, ZHOU Gui-ping, WANG Yan-ru. Wavelength Allocation Scheme Based on User Traffic Prediction in TWDM-PON[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2017, 40(6): 74-79.

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TWDM-PON中用户流量预测的波长分配方案

Wavelength Allocation Scheme Based on User Traffic Prediction in TWDM-PON

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