摘要
分析了无线激光通信网络上行接入带宽动态分配问题,融合激光网络单元休眠控制以及动态带宽分配方案,提出基于双向DBA算法的无线激光通信网络上行接入带宽动态分配方法。其按照激光通信网络上行和下行业务量,向各ONU划分合理的上行和下行带宽,确保各ONU在上行以及下行方向的传递时延最低,提升ONU的休眠时间,进而确保网络能耗的最低化。实验结果说明,同传统方法相比,所提方法分配下的无线激光通信网络上行平均时延和资源能耗都较低。
This paper analyzed the uplink access bandwidth dynamic allocation of wireless laser communication network. It put forward the uplink access bandwidth dynamic allocation method of wireless laser communication net- work based on two-way DBA algorithm, which combined with the dormancy control of laser network unit and the allo- cation plan of dynamic bandwidth. Dividing reasonable uplink and downlink bandwidth of ONU respectively according to the uplink and downlink traffic of laser communication network to ensure the lowest transmission delay in uplink and downlink of each ONU and improve its dormancy time. Finally, to guarantee the network energy minimization. Experi- mental results show that, under the allocation of this method proposed, the average delay and resource consumption of wireless laser communication network uplink are lower compared with traditional method.
作者
杨颖辉
李红娟
孙胜耀
YANG Ying-hui Li Hong-juan SHUN Sheng-yao(Henan University of Animal Husbandry and Economy, Zhengzhou 450045, China Henan University, Kaifeng Henan 475000, China)
出处
《激光杂志》
北大核心
2017年第4期118-122,共5页
Laser Journal
基金
河南省科技厅科技发展计划项目(152400410521)
河南省高等学校重点科研项目(15A520076)
关键词
无线激光
通信网络
带宽
动态分配
wireless laser
communication network
bandwidth
dynamic allocation
