【摘要】 介绍了无线传感器网络中2种重要的基于竞争的MAC协议(IEEE802.11和S-MAC)原理。从平台的整体架构和运行环境2个方面对无线传感器网络测试平台的设计进行了详细介绍。对于IEEE802.11和S-MAC协议的实现,具体描述了通信接口的定义和组件重用技术,从状态机的角度阐述了协议的运行流程。根据测试数据从不同方面对IEEE802.11和S-MAC协议进行了对比分析。实验结果真实地反映了协议的性能,对无线传感器网络MAC协议的研究有着积极的推动作用。更多还原

【Abstract】 This paper firstly presents the principle of two important contention-based MAC protocol of WSN(IEEE802.11 and S-MAC)and then discusses the plan to achieve the test-bed in detail from the aspects of the overall architecture and operating environment of test-bed.The paper,to realize IEEE802.11 and S-MAC protocol,describes the definition of communication interface and the technology of component reuse exactly,and then explains their operational flows through the aspect of running state.In the end the paper contrastively analyzes IEEE802.11 and S-MAC in different areas according to the data from the experiment.The results of experiment reflect the actual performance of protocols,and it can actively promote the study of MAC protocols for WSN.更多还原