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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。
In this paper, we analyze the dynamic allocation of uplink access bandwidth in wireless laser communication network, merge the dormancy control of laser network unit and the dynamic bandwidth allocation scheme, and propose a dynamic allocation method of uplink access bandwidth in wireless laser communication network based on bidirectional DBA algorithm. It allocates reasonable upstream and downstream bandwidths to ONUs according to the upstream and downstream traffic of the laser communication network to ensure the lowest latency of the ONUs in the upstream and downstream directions and improves ONU sleep time so as to ensure minimum network energy consumption . The experimental results show that compared with the traditional method, the proposed wireless laser communication network has lower average uplink delay and lower energy consumption.