earticle

영어

Wireless Sensor networks require a routing protocol that could efficiently use inherent limited energy resource of sensor nodes. All sensor nodes first sense data in many-to-one sensor network, and transmit it directly to the sink through multi-hop transmission. Since this method transmits data through a specific path within network, the nodes in the corresponding path use energy faster than other nodes and the hole problems are generated within the network. Therefore, we suggests a routing protocol to ease routing hole problems that could occur due to intensive energy consumption of a specific path during the transmission of sensed data from a sensor node to neighbor nodes. The proposed routing protocol enhanced energy efficiency of all nodes in a network by inducing data transmission from the source to a sink through different pathways. In the proposed protocol, a next hop was decided based on (m,k)-firm scheduling technique, energy expenditure in each node, and transmission delay among nodes. Performance evaluation through simulations verified improved performance of the proposed protocol compare to conventional routing protocols.