无线传感器网络体系结构和关键技术研究

文章介绍了无线传感器网络的体系结构,提出了一种基于跨层设计的管理控制机制;在对无线传感器网络的关键技术,如媒体接入控制(MAC)技术和无线路由协议,分别进行阐述和比较的基础上,提出了一种把简单的IEEE 802 MAC协议应用于无线传感器网络的思想;为了提高系统容量,提出了多信道策略,可以用来有效减少系统碰撞阻塞率,减少接入时延;认为虽然无线传感器网络的应用前景非常广阔,但是仍存在很多问题,除了要尽量减少功耗外,必须提高系统容量,减少碰撞阻塞率,以加快无线传感器网络实用化的进程.

Study on Architecture and Key Techniques of Wireless Sensor Networks

This paper introduces the architecture of wireless sensor networks, presents a network management and control mechanism, which is based on the cross-layer design concept. The key techniques, such as Medium Access Control (MAC) and wireless routing protocols, are discussed and compared respectively. An idea is proposed that the simple IEEE 802 MAC protocol can be used for the wireless sensor networks. In order to improve the system capacity, the multi-channel strategy can be adopted to effectively reduce system block and shorten the time delay of access. The application of wireless sensor network will be promising, but there are many problems to be solved. Measures for reducing power consumption to the lowest level, as well as increasing system capacity and reducing system block should be taken in order to promote the commercial application of wireless sensor networks.