基于FPGA WSN轮询接入控制协议的研究

摘要

MAC(media access control) protocol is a direct link between physical and network layer, which is one of the key protocols to ensure high efficient communication. According to the characteristics of WSN (wireless sensor network) nodes, the design and implementation of polling access control protocol based on FPGA (field programmable gate array) were presented for the first time. The design made full use of the characteristics of flexibility and reconfigurability of FPGA. The method of combination of the hardware circuit description language Verilog HDL and the principle diagram was adopted, using Quartus II 8.0 to carry on the synthesis and routing, testing in the DE2. The design has the character-istics of good real-time, high reliability, strong portability, and can effectively reduce the transmission delay and improve the bus utilization. The designed system can be widely used in WSN, software radio network, ad hoc networks, military integrated service network, mobile communications networks, Internet of things as well as other fields.%媒体接入控制（MAC）协议是连接物理链路和网络层直接的纽带，是保证网络高效通信的关键协议之一。根据无线传感器网络汇聚节点的工作特性，首次以FPGA（field programmable gate array）对轮询机制的接入控制协议进行了设计和实现。该设计充分利用FPGA的灵活性和可重构性的特点，采用硬件描述语言Verilog HDL和原理图相结合的方法，使用QuartusⅡ8.0进行综合和布线，在DE2开发板上进行测试。该设计具有实时性好、可靠性高、可移植性强等特点，能够有效减小传输时延，提高总线利用率。可广泛应用于无线传感器网络、软件无线电网络、ad hoc网络、军用综合业务网络、移动通信网络、物联网等领域。