基于多令牌协议航电WDM光环网波长分配方法

doi:CNKI:11-1929/V.20120229.1029.005

电子与自动控制

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基于多令牌协议航电WDM光环网波长分配方法

刘晓敏, 丁凡, 赵长啸, 熊华钢, 屠晓杰

北京航空航天大学电子信息工程学院, 北京 100191

收稿日期:2011-06-29 修回日期:2011-09-20 出版日期:2012-05-25 发布日期:2012-05-24
通讯作者: 熊华钢,Tel.: 010-82317202 E-mail: hgxiong@ee.buaa.edu.cn E-mail:hgxiong@ee.buaa.edu.cn
基金资助:
国家自然科学基金(60879024)

Wavelength Assignment for Avionic WDM Optical Ring Network Based on Multi-tokens Protocol

LIU Xiaomin, DING Fan, ZHAO Changxiao, XIONG Huagang, TU Xiaojie

School of Electronics and Information Engineering, Beihang University, Beijing 100191, China

Received:2011-06-29 Revised:2011-09-20 Online:2012-05-25 Published:2012-05-24
Supported by:
National Natural Science Foundation of China (60879024)

摘要/Abstract

摘要： 针对航空电子光网络的实时性问题,建立了航空电子波分复用(WDM)环网模型,以实时消息流矩阵作为网络的输入,依据静态光网络最小化波长数目的优化目标,提出了一种基于多令牌协议的光网络波长分配方法,并推导了航电光网络中光通道的端到端传输时延计算公式。通过对理论计算和仿真结果的分析,此协议下的波长分配方法在网络中可以实现波长重用,比传统环网的波长数目平均降低了58.1%,优化了波长数目,并且多令牌控制协议满足航空电子网络对消息实时性的要求。此方法对于航空电子光网络的设计与性能分析具有参考价值。

关键词: 航空电子, 光网络, 波分复用(WDM), 路由与波长分配(RWA), 令牌协议

Abstract: To guarantee the real-time performance of an avionic optical network, a model of avionic wavelength division multiplexing (WDM) optical network is built with real-time message flow matrix as the input. According to the optimized aim of minimizing the number of wavelengths in a static optical network, a method of wavelength assignment based on multi-tokens with a priority protocol is proposed, and then the analytical transmission delay expression of an end-to-end system in the optical channel is derived from the proposed protocol. The analytical results show that by using the multi-tokens protocol, the number of wavelengths is reduced by 58.1% as compared with the conventional method, The protocol method optimizes the number of wavelengths, and allows their reuse in network implementation. Multi-tokens with a priority protocol can satisfy the real-time performance demands of avionic networks. A comparison between the theoretical calculation and analysis of simulation results shows that the proposed protocol has the prospect of being applied to the design and performance evaluation of avionic optical networks.

Key words: avionics, optical network, wavelength division multiplexing (WDM), routing and wavelength assignment (RWA), token protocol

中图分类号:

V243.1
TP393

刘晓敏, 丁凡, 赵长啸, 熊华钢, 屠晓杰. 基于多令牌协议航电WDM光环网波长分配方法 [J]. 航空学报, 2012, (5): 879-885.

LIU Xiaomin, DING Fan, ZHAO Changxiao, XIONG Huagang, TU Xiaojie. Wavelength Assignment for Avionic WDM Optical Ring Network Based on Multi-tokens Protocol[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, (5): 879-885.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于多令牌协议航电WDM光环网波长分配方法

Wavelength Assignment for Avionic WDM Optical Ring Network Based on Multi-tokens Protocol

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