QoS Control for Guaranteed Service Bundles Over Fiber-Wireless (FiWi) Broadband Access Networks
QoS Control for Guaranteed Service Bundles Over Fiber-Wireless (FiWi) Broadband Access Networks
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DOI：
10.1109/jlt.2011.2132753
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发表时间：
2011-05
影响因子：
4.7
通讯作者：
A. R. Dhaini;P. Ho;Xiaohong Jiang
中科院分区：
文献类型：
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作者：
A. R. Dhaini;P. Ho;Xiaohong Jiang
以太网无源光网络（EPON）和IEEE 802.16的融合是下一代宽带接入的一个很有前途的选择。本文研究了综合运营商的性能时，特定的服务束（SB）提供带宽保证和不同的服务质量要求。我们首先提出了一个新的框架，公平地分配上游网络容量之间的不同SB。然后，我们提出了一种新的基于延迟的准入控制方案，以提高网络利用率，使SB间的统计复用。为了获得每个SB流的预期延迟，开发了一个通用的分析模型。在此模型的基础上，我们进一步制定了一些重要的性能指标，如排队延迟，端到端（从无线用户到中心局的PON）延迟，平均队列大小和最佳正交频分复用帧长。数值结果验证了我们的分析，并突出了所提出的解决方案的优点。
The integration of ethernet passive optical networks (EPONs) and IEEE 802.16 has been lately presented as a promising candidate for next-generation broadband access. This paper investigates the performance of the integrated carrier when specific service bundles (SBs) with bandwidth guarantee and diverse quality of service requirements are provisioned. We first present a novel framework that fairly distributes the upstream network capacity among the different SBs. We then propose a novel delay-based admission control scheme to increase the network utilization and enable an inter-SB statistical multiplexing. To obtain the expected delay of each SB stream, a generic analytical model is developed. Based on this model, we further formulate some important performance measures such as queuing delay, end-to-end (from wireless user to the central office of PON) delay, average queue size and optimal orthogonal frequency division multiplexing frame length. Numerical results validate our analysis and highlight the advantages of the proposed solution.