介绍了无线传感器网络中的定向扩散路由协议。
Directed diffusion routing protocol of wireless sensor networks is described.
第2章，详细介绍了多播路由协议及服务质量保证体系。
Chapter 2 describes in detail multicast routing protocols and the system of QoS guarantee.
本文的第一部分从自组网的特点出发，介绍路由协议的设计要求和研究现状。
The first part of this article presents the guide line of routing protocol design, and gives an overview of research in this area.
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