International Journal of Engineering Technology, Management and Applied Sciences www.ijetmas.com February 2016, Volume 4, Issue 2, ISSN 2349-4476 201 Simran Khiani , Dr. C. G. Dethe Designing Secure ClusteringAlgorithm in Wireless Sensor Network Simran Khiani 1 Dr. C. G. Dethe Asst.Prof. Computer Department, Director, Academic College GHRCEM, Pune. Nagpur. Abstract The dynamic nature ofWireless Sensor Networks requires a routingprotocols that should be energy efficient and prolongs thelifespan of the network. Several energy awarerouting algorithms have been projected for Wireless Sensor Networks.In the proposed work, a new energy- efficientdynamic clustering technique is used. The active sensor nodes among their neighbor select the cluster head which has highest energy so the energy consumed in the communication process of cluster formation will be reduced.An energy aware routing protocol which uses ant colony optimization method isused to selectthe best paths. Introduction The wireless sensor network consists of sensor nodes which are resource constrained i.e. they operate on battery power. The sensor nodes sense the environment conditions and transfer the data to the base station[1]. But transferring data by each sensor node is difficult as they have limited transmission range. Hence grouping of sensor nodes can be done by using clustering. In clustering, each sensor node will transmit data to the cluster head and cluster head will transmit it to the base station.Clustering reduces delay, redundant data and inefficient routes. The main difficulty in clustering is selecting proper nodes which will act as a cluster head. Most of the existing algorithms randomly selects a cluster head which will result in an inefficient routing method. The cluster head will also require more power to transmit the data and if the battery power is less than the threshold then the path may be destroyed. The proposed work focuses on the routing algorithm which is energy awareand which will select the cluster head based on the parameters such as energy,link quality etc. The cluster heads then will transmit the aggregated data to the base station using an efficient routing method. Literature Survey The selection of routing algorithm is an important issue because of resource constrained sensor nodes, redundancy in the sensed data. Many routing methods have been proposed for finding and maintainingenergy aware paths in WSNs.Clustering method is also used to increase the lifetime of the network and to reduce energy consumption. In clusteringmethod, the sensor nodes form a group and the node having more energy remaining will be selected as a cluster head. The cluster head coordinates all the transmission and receiving tasks. It can increase packet transmission rate and balances the energy consumed, reduces redundancy. One of the most popular clustering protocol is LEACH[10], [11]. In this method, each node transmit data directly to the cluster head and sink. Itconsumesless energydissipation and it is easy to configure but it cannot be used for large scale networks. The LEACH-C[11] protocol is extension of LEACH. In this method, base station is used to form clusters. The number of cluster heads are predefined toa optimal value but the disadvantage of the method is that base station should have global knowledge about the network. The Power-Efficient Gathering in Sensor Information Systems(PEGASIS) works on chaining technique [12]. In this method, each node transmits nearby neighbor and the process is continued till the data reaches to the base station. The performance of PEGASIS is twice as compared to LEACH [12],[13] but redundancy in data transmission is the drawback. The Threshold sensitive Energy Efficient sensor Network protocol(TEEN) works well when there is sudden change in environmental condition i.e. temperature [14]. But when the network layers increases, then it consumes more energy.