面向电力线与无线通信网络融合的统一MAC协议研究

Research on Unified MAC Protocol for Power Line and Wireless Communication Network Fusion

电力线载波与无线融合能够实现2种通信技术的协同互补,解决0.4 kV配用电通信网因线路分支、脉冲干扰、有色背景噪声、建筑物遮挡等因素导致的单一通信网络节点接入率低的难题。文章研究了电力线载波与无线在MAC协议层的融合,提出MAC帧结构,细化网络建立、资源调度和网络维护等MAC层主要功能。分析表明,设计面向电力线载波与无线网络融合的统一MAC协议是可行的,与现有双模网络相比,能够减小协议开销,提高节点接入率。

Power line and wireless network fusion can realize the mutual complementary of the two communication technologies, thus to solve the problem in power communication network for 0.4 kV distribution network, such as low node access rate of a single communication network caused by line branches, impulse interfering and colored background noise and so on. This paper studies the fusion of power line and wireless in the MAC layer, proposes the MAC frame structure, and specifies the main functions of MAC layer such as network establishment, resource scheduling and network maintenance. The analysis shows that it is feasible to design a unified MAC protocol for power line and wireless fusion network. Compared with the existing dual-mode network, network fusion can reduce the protocol overhead and improve the node access rate.