OCR-MAC：一种新的基于CSMA的无线传感器网络MAC协议

摘要

传感器网络被认为是21世纪最重要的技术之一，它将对人类未来的生活产生深远影响，其中MAC协议是WSN通信协议中最为突出也是最为重要的关键协议之一。无线传感器网络具有节点的电源能量和硬件资源受限的特点，因此设计高能效的MAC协议是MAC协议研究中具有挑战性的研究课题。基于以上目的，本文采用了CSMA机制和分簇路由协议的优点，改进了传统的MAC协议提出了OCR-MAC协议，并利用MATLAB进行了仿真，仿真结果表明，改进后的OCR-MAC协议在节能和网络数据传输方面性能更加优越。%Sensor network is considered to be one of the most important technology in the 21st century, it will have a profound impact human life in the future, and the MAC protocols are the most prominent and important key agreements in the WSN communication protocols. WSN has the characteristics of limited nodes power and hardware resources, therefore designing an energy-efficient MAC protocol is a challenging research topic in the MAC protocols’ study. Based on the above purpose, this paper adopts the advantages of CSMA mechanism and clustering routing protocols, improves the traditional MAC protocol and proposes the OCR-MAC protocol, simulations by MATLAB show that the improved OCR-MAC protocols is more superior in terms of energy saving and network data transmission.