| Summary: | 碩士 === 東海大學 === 資訊工程學系 === 102 === ABSTRACT
Over the past decade, research on wireless sensor networks has been active, including low power consumption and backup and routing path. Transmission of packets requires cooperation among nodes. Hence this work focuses on investigating communication protocol, topology, packet retransmission, and topology reconstruction of wireless sensor networks. Through analysis of current routing protocols of wireless sensor networks, an effective packet transmission method as well as a routing protocol is proposed to extend the life cycle of wireless sensor networks.
We propose a dynamic routing protocol for wireless sensor networks, in which a dynamic routing path is used for packet transmission mainly to avoid early death of wireless sensor networks caused by frequently sending packets to the same node from multiple nodes. Thus, the lifetime of the wireless sensor network can be prolonged by avoiding situations that the external nodes are still alive while the intermediate forwarding nodes are dead. We use Network Simulator 2 (NS2) for simulations. The experimental results show that the dynamic routing protocol has significant improvement of life time of wireless sensor networks.
In the future, we plan to do more research on design and implementation of wireless sensor networks based on the proposed dynamic routing protocol.
|
|---|
