上海交通大学学报

上海交通大学学报（自然版） ›› 2017, Vol. 51 ›› Issue (1): 105-.

• 无线电电子学、电信技术 • 上一篇    下一篇

自适应延迟感知的光无线混合宽带接入网节能机制

  

  1. 1. 重庆邮电大学 通信与信息工程学院，重庆 400065；2. 重庆高校市级光通信与网络重点实验室，重庆 400065； 3. 烽火通信科技股份有限公司，武汉 430073；4. 重庆电信研究院，重庆 401336
  • 出版日期:2017-01-31 发布日期:2017-01-31

Adaptive Energy Saving Mechanism with Delay Aware in Hybrid OpticalWireless Broadband Access Networks

  1. 1. School of Telecommunication and Information Engineering,
     Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
    2. Optical Communication and Network Key Laboratory of Chongqing, Chongqing 400065, China;
    3. Fiber Home Telecommunication and Technologies Co., Ltd., Wuhan 430073, China;
    4. Chongqing Institue of Telecommunications, Chongqing 401336, China
  • Online:2017-01-31 Published:2017-01-31

摘要：

摘要：  利用数据的延迟容忍特性，提出了一种自适应延迟感知光无线混合网络节能机制.为了充分利用数据的延迟容忍度，网关动态地感知数据的到达率，采用排队模型来分析网关能耗和数据延迟，从而自适应地选择休眠周期；同时，采用多网关均衡负载机制来减小网关休眠带来的路径重建延迟和拥塞，从而减小因休眠而增加的延迟.结果表明，所提出的机制可降低网关总能耗36%，并有效提高网关利用率，降低网络中数据的路径延迟.

关键词: 光无线混合宽带接入网, 延迟感知, 节能, 网关

Abstract:

Abstract： Gateway utilization is low in hybrid opticalwireless broadband access networks. Therefore, the energy efficiency can be effectively enhanced by employing the gateway sleep scheduling mechanism at the expense of increasing the system delay. In this paper, a novel adaptive energy saving mechanism with delay aware in hybrid opticalwireless broadband access networks was proposed based on the delay tolerance feature of data. In order to fully exploit the delay tolerance feature of data, and to adaptively determine the sleeping interval according to arrival rate, the queuing theory model was introduced to analyse the energy consumption and the data gateway latency. Meanwhile, to achieve the energy efficiency, the path reconstruction delay and congestion rate were dramatically reduced by the proposed multigateway loadbalance mechanism. The results show that the proposed mechanism can reduce the total energy consumption of gateways by 36%. Besides, the utilization rate of the gateway is effectively improved and the path delay is reduced.

Key words: hybrid opticalwireless broadband access networks （HOWBAN）, delay aware, energy saving, gateway

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