一种适用于电力异构通信的链路速率跨层匹配机制  

Cross-layer Matching Mechanism of Link Communication Rate for Heterogeneous Communication in Power System

作　　者：肖勇 金鑫 冯俊豪 XIAO Yong;JIN Xin;FENG Jun-hao(Electric Power Research Institute,CSG,Guangzhou 510663,China)

机构地区：[1]南方电网科学研究院,广州510663

出　　处：《计算机科学》2021年第S02期495-499,共5页Computer Science

摘　　要：电力系统低压用户信息采集所采用的本地通信技术种类繁多,存在多种协议体制通信速率不统一、异构互通困难的问题。针对电力通信系统中异构链路接口间通信速率不匹配问题,提出一种适用于电力异构通信的链路速率跨层匹配机制。在链路层,设计基于业务速率需求的接入控制机制,提高链路利用率。提出网络接口动态存储转发机制,完成不同网络接口之间的通信速率匹配。在网络层,提出了一种面向网络层多路径传输的速率匹配算法,实现多路径下的路径选择策略与路径传输数据的动态优化。仿真结果证实了该跨层速率匹配机制的有效性。与RBAR协议和ARF协议相比,该机制提高了网络吞吐量,降低了时延和丢包率。Various local communication techniques are employed in the power system.The coexist of multiple protocols in power networks leads to various communication rates,resulting in difficulty of heterogeneous fusion.Aiming at this problem,a cross-layer communication rate matching mechanism between heterogeneous links is proposed.In the link layer,the link utilization rate is improved by means of the rate requirement based access control mechanism.Using the dynamic store-and-forward method,the communication rate is matched and forwarded among different network interfaces.Furthermore,in the network layer,data rate matching based on multipath transmission is proposed to achieve the maximum data rate matching and improve the communication efficiency.Simulation results have demonstrated the validity of the proposed rate matching mechanism based on cross layer design.In addition,compared with the RBAR protocol and ARF protocol,the proposed mechanism can be used to improve the network throughput,while reduce the delay and packet loss rate.

关 键 词：智能电网 融合网关 异构网络 多业务接入 速率匹配 

分 类 号：TN915[电子电信—通信与信息系统]