电力无线专网D2D中继链路延时分析  

Analysis on D2D Relay Link Latency Underlay Dedicated Wireless Communication Network of Power System

作　　者：张逸彬 罗久桓 孔奉波 陈长赓 Zhang Yibin;Luo Jiuhuan;Kong Fengbo;Chen Changgeng(Customer Service Department,Yunnan Power Grid Co.Ltd Information Center,Yunnan Kunming 650200)

机构地区：[1]云南电网有限责任公司信息中心客户服务部,云南昆明650200

出　　处：《信息通信》2020年第8期132-134,共3页Information & Communications

基　　金：云南电网科技项目(YNKJXM20190027)。

摘　　要：电力无线专网采用电力行业专用频点对于配网、计量自动化业务数据进行传输,D2D通信是该网络架构下提高数据采集实时性的有效方式。基于电力行业末端节点配网和计量数据采集的场景,对D2D中继链路延时进行建模,并分析该机制下影响延时的主要因素,研究D2D中继汇聚机制时间差以及海量终端同频并发冲突退避机制对于整体网络延时的影响。通过计算机网络仿真,验证了采用D2D中继可以有效降低20-30%的传输延时,并讨论了信道数量对于延时的局限性。Dedicated wireless communication network of power system collects data from distributed automation nodes and smart meters via the authorized frequencies. Underlay the macro-cellular, D2D(Device to Device) communication provides an effective way to enhance the real-time data collections. Based on distributed automation metering, the model of D2D link is established and the component of the latency is analyzed. Research has been conducted on the implications due to the time discrepancy in D2D cluster and the collision on the tremendous co-channel accesses. Network simulation has verified that D2D can reduce the overall network latency up to 20-30%. Besides, the limitation from the channel number is discussed.

关 键 词：智能电网 电力无线专网 D2D通信 配网自动化 计量自动化 

分 类 号：TN915.85[电子电信—通信与信息系统]