earticle

영어

As deployment of sensor networks are recently expanding, a variety of services based on sensor network have been introduced. Nevertheless, problems such as network bandwidth reduction, collision occurrence and performance deterioration due to broadcasting of message in large scale networks have become main challenges. Above all, prolonging of battery lifetime becomes primary challenge to overcome for deploying sensor networks in various fields. In this paper, we present a new routing algorithm based on data-centric routing and address-based routing schemes, which is that query messages are delivered to target area by using address-based routing scheme, then, broadcast scheme is used in target area by inserting additional information of neighbor nodes into the message payload. This method prevents severe broadcast storm caused by broadcasting messages, and also provides reliable data delivery at reasonable level by utilizing address information in message. By computer simulation, our proposed scheme significantly reduces energy consumption caused by broadcasting of messages as well as it improves appropriate data reliability in wireless sensor networks.