No abstract

This paper brings clustering protocol which divides the whole network to variable radiuses with virtual circles where radiuses of each virtual circles and the cluster size will increase with the increase in distance from the base station. In this protocol leader node is introduced which is responsible for collecting and compressing data in each cluster from their ordinary neighbor node and sending them to head cluster. Simulation result demonstrate that proposed protocol in comparison with protocol such as LEACH , DSBCA and TCAC increases the network lifetime and makes network energy efficient across the network.

In this paper, we have proposed a three-layer framework for mobile data gathering in wireless sensor networks, which includes the sensor layer, cluster head, & mobile collector layer. Distributed load balanced clustering and dual data uploading is employed in our framework. Good scalability, long network lifetime and low data collection latency are the main objectives to be achieved. A distributed load balance clustering algorithm is proposed at the sensor layer in which the sensor self-organizes themselves into clusters. In our scheme multiple cluster heads are generated in each cluster to balance the work load and preside dual data uploading. The multiple cluster heads cooperate with a cluster to perform energy saving inter-cluster communications. At the mobile layer two cluster heads are enabled simultaneously to upload data to sencar by utilizing mobile MIMO (multiple-input and multiple-output) technique. By visiting selected and associated pairs polling points, sencar can efficiently gather data from cluster heads. To evaluate the effectiveness of proposed mobile-MIMO scheme extensive simulations are conducted.