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arXiv 1102.3538cs.NI
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无源光城域网中一种流量感知的MAC协议

A Flow-aware MAC Protocol for a Passive Optical Metropolitan Area Network

Philippe Robert, James Roberts

摘要:

本文介绍了贝尔实验室最近提出的一种基于时域波长交织网络(TWIN)的无源光城域网MAC协议。光信道在目的地的分布式控制下使用基于分组的轮询算法来共享。这种MAC更多地受到EPON动态带宽分配的启发,而不是通常为TWIN设想的时隙式、类似GPON的接入控制。源-目的地业务流的管理是流感知的,其中分配的时间片的大小与活动流的数量成比例。这模拟了一个网络范围内,分布式公平排队调度,使众所周知的隐式服务的差异化和鲁棒性的优点,这种机制的城域网。本文提出了一个全面的性能评估的基础上分析建模支持模拟。建议的MAC被证明具有优异的性能,在两个流量容量和数据包延迟。

英文摘要:

The paper introduces an original MAC protocol for a passive optical metropolitan area network using time-domain wavelength interleaved networking (TWIN)% as proposed recently by Bell Labs . Optical channels are shared under the distributed control of destinations using a packet-based polling algorithm. This MAC is inspired more by EPON dynamic bandwidth allocation than the slotted, GPON-like access control generally envisaged for TWIN. Management of source-destination traffic streams is flow-aware with the size of allocated time slices being proportional to the number of active flows. This emulates a network-wide, distributed fair queuing scheduler, bringing the well-known implicit service differentiation and robustness advantages of this mechanism to the metro area network. The paper presents a comprehensive performance evaluation based on analytical modelling supported by simulations. The proposed MAC is shown to have excellent performance in terms of both traffic capacity and packet latency.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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