文章针对低功耗WSN的多跳广播问题,摆脱异步睡眠调度下利用单播实现广播的转发模式,给出基于TinyOS的低功耗WSN广播协议的设计,包括低功耗WSN广播主干构建、广播转发条件判定、广播的时延保障和基于睡眠调度可调的广播优化。该协议的各组件可通过连接的方式应用于现有协议的集成或开发,也可用于广播支持的研究,比如低功耗WSN的网络配置控制信息广播、低功耗WSN的事件通知和低功耗WSN的密钥管理与分发等。
In this paper, on account of multi-hop broadcast problem in low power wireless sensor networks, we get rid of the unicast replacement forwarding mode in asynchronous sleep scheduling, and give a design of broadcast protocol based on TinyOS platform for low power wireless sensor networks, including the building of broadcast backbone, the decision condition of broadcast forwarding, the delay guarantee of broadcasts and the optimized broadcasts based on adjustable sleep scheduling. Each component implemented in our proposed protocol can be connected to the current protocols for integration and development. It can also be recognized as the research of broadcast supporting, such as control information broadcasting of network configuration, event notification and key management and distribution in low power wireless sensor networks.