Reliable Routing Protocols in Wireless Sensor Networks

• Main Author: 張振龍
• Other Authors: Hsi-Lu Chao
• Format: Others
• Language: en_US
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/52784511181557803495

碩士 === 國立交通大學 === 資訊科學與工程研究所 === 94 === Wireless sensor networks are characterized by limited resources including energy and bandwidth. By equipping different sensing units and deploying those sensor nodes in a specific region, more and more applications are able to be carried out. These applications may require different bounded latency, successful delivery rate, or data redundancy for the data in order to provide Quality of Service (QoS) to the sensor networks. Applications like fire detection will require delivering packets in different priorities since the sensed event with higher temperature is more important than a normal one. Packets with higher priority should be delivered in a more reliable way. In this thesis, we propose two reliable routing protocols for wireless sensor networks which can provide reliability to the packets by maintaining single and multiple reliable paths. The procedure of maintaining multiple paths can also reduce the routing overhead and thus prolong the lifetime of the network. From the simulation result, the packet delivery rate of our protocol performs well under different reliability demand and has smaller routing overhead due to the multiple paths maintenance.