| 在工业网中EPON的DBA算法研究 |
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| 引用本文： | 张碧莹,尚蔚,王直杰.在工业网中EPON的DBA算法研究[J].光纤与电缆及其应用技术,2010(3):35-37. |
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| 作者姓名： | 张碧莹 尚蔚 王直杰 |
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| 作者单位： | 东华大学信息科学与技术学院,上海201620 |
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| 摘 要： | EPON系统中,上行数据传输的动态带宽分配（DBA）算法是关键技术之一。针对EPON在工业网络通信中的应用,对现有的DBA算法进行了分析和改进,以保证监控和报警等特殊业务的实时送达,消除交叉轮询的带宽浪费,并对该算法进行了仿真实验。仿真结果表明,该算法的带宽利用率高,业务时延抖动低,并且在低负载时无轻载惩罚现象。
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| 关 键 词： | 以太网无源光网络 工业网络通信 动态带宽分配 监控和报警 |
DBA Algorithm for EPON in Industry Network Service |
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| ZHANG Bi-ying,SHANG Wei,WANG Zhi-jie.DBA Algorithm for EPON in Industry Network Service[J].Optical Fiber & Electric Cable and Their Applications,2010(3):35-37. |
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| Authors: | ZHANG Bi-ying SHANG Wei WANG Zhi-jie |
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| Institution: | (College of Information Sciences and Technology,Donghua University,Shanghai 201620,China) |
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| Abstract: | Dynamic bandwidth allocation（DBA） algorithm is one of the key technologies in EPON system.Aiming at the application of EPON in industry network service,existing DBA algorithms are analyzed and improved,so as to ensure the real-time transmission of supervisory and alerting signals,eliminating the bandwidth waste in interleaved polling,and the simulation of the algorithm is conducted.The simulation results show that the improved algorithm has higher bandwidth utilization,lower service delay jitter,and no light-load penalty. |
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| Keywords: | EPON industry network service dynamic bandwidth allocation（DBA） supervisory and alerting |
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