| EPON上行接入动态带宽分配算法的研究 |
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| 引用本文： | 戚世杰,邹君妮,李迎春,林如俭. EPON上行接入动态带宽分配算法的研究[J]. 光电工程, 2004, 31(Z1): 173-176 |
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| 作者姓名： | 戚世杰 邹君妮 李迎春 林如俭 |
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| 作者单位： | 上海大学通信与信息工程学院,上海,200072 |
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| 基金项目： | 上海市科委(04dz12045)，上海市重点学科项目资助 |
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| 摘 要： | 以太无源光网络的上行方向需要一种多址接入技术来防止以太数据包的碰撞。时分多址技术应用广泛,而波分多址技术极具潜力,是发展的方向。基于时分多址技术,提出了一种改进的动态带宽分配算法,结合了轮询机制和申请的优先级。通过建模仿真,证明了该算法可以取得较小的平均包延时和较高的带宽利用率。
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| 关 键 词： | 以太无源光网络 时分多址 波分多址 动态带宽分配 |
| 文章编号： | 1003-501X(2004)Sup-0173-04 |
| 收稿时间： | 2004-05-14 |
| 修稿时间： | 2004-05-14 |
Study on dynamic bandwidth allocation algorithm for EPON upstream access |
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| QI Shi-jie,ZOU Jun-ni,LI Ying-chun,LIN Ru-jian. Study on dynamic bandwidth allocation algorithm for EPON upstream access[J]. Opto-Electronic Engineering, 2004, 31(Z1): 173-176 |
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| Authors: | QI Shi-jie ZOU Jun-ni LI Ying-chun LIN Ru-jian |
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| Abstract: | A kind of multi-access scheme is needed in the upstream of EPON in order to avoid the collision of Ethernet packages. In the upstream of EPON, TMDA is widely used currently while WMDA looks great potential in the future. Based on TMDA technology, a modified dynamic bandwidth allocation algorithm, which integrates Polling scheme and requesting priority, is proposed. Simulation results prove that the algorithm is characteristic of low average package delay and high bandwidth utilization. |
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| Keywords: | EPON TDMA WDMA Dynamic bandwidth allocation |
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