Performance Analysis of Energy Dissipation in WSNs Using Multi-Chain PEGASIS Mukesh Prajapat #1 , Dr. N.C. Barwar *2 # M.E. Scholar, Department of Computer Science & Engg.,M.B.M. Engineering College, J.N.V. University, Jodhpur, India * Assoc. Prof., Department of Computer Science & Engg.,M.B.M. Engineering College, J.N.V. University, Jodhpur, India Abstract— In wireless sensor networks, sensor nodes have limitation of energy so the lifetime of the networks is very important design factor.There are proposed many routing protocols for the wireless sensor networks recently. One of these protocols, the PEGASIS (Power-Efficient GAthering in Sensor Information Systems) protocol is a chain-based routing scheme that are proposed for reducing energy consumption of communication in the networks. In general, the PEGASIS protocol give twice or more performance in comparison with the LEACH (Low Energy Adaptive Clustering Hierarchy) protocol. The chain-based routing schemes construct the chains for routing path. The chain-based routing schemes use the concept of multi-hop routing. The proposed approach divides the single chain into multiple parts. It decreases the network overhead due to fewer numbers of nodes in chains. Minimization of data delivery delay is also an important requirement to improve network performance. In the proposed method nodes are divided in several regions and different chains are made for each region, it reduces the delay between nodes to BS, hence energy load is distributed uniformly among the chains. Overall performance analysis is measured in terms of network lifetime in terms of Sum of Remaining Energy (Joule) with number of rounds. We compare the LEACH, PEGASIS and proposed method with respect to 15J, 20J, 25J and 30J Energy, Where initial energy level of nodes are 0.5J. Proposed method is found to be 20% better at performance than PEGASIS and 72% than LEACH. Keywords— Wireless sensor network, PEGASIS, Multi- Chain PEGASIS, Energy dissipation, Number of dead nodes and Rounds, LEACH. I. INTRODUCTION Wireless sensor networks are set of hundreds or thousands of micro sensor nodes that have capabilities of sensing, establishing wireless communication between each other and doing computational and processing operations. In fact, These sensor nodes sense their environment and can provide information about environments which are far from us via wireless communications. These networks have many applications and appeals but because of their limitations of energy and bandwidth, actual applications of them are difficult. Since to achieve these capabilities, we must use many numbers of these micro sensor nodes, the cost for these nodes should be very low. The energy of nodes is depending on the power which is embedded in nodes, so we always have the limitation for the cost and the size of the nodes. There are many energy efficient protocols designed for wireless sensor networks ([1], [2]). When sensor networks are considered, those data routing algorithms can maximize the system lifetime for the different method. In this paper, we propose a new method for reducing the energy consumption in the nodes routing. This energy reduction will cause changes in some of the other dependent parameters such as delay. Among the hierarchical protocols, Low-Energy Adaptive Clustering Hierarchy (LEACH) [3] and Power Efficient Gathering in Sensor Information Systems (PEGASIS) [4] are the most famous. PEGASIS avoids the formation of clusters and allows a single node in the chain, to forward data to the BS [5]. An energy efficient network organisation scheme for WSN is proposed in this paper. In the context of chaining scheme, the proposed method divides the single chain into the multi-chain. The proposed method uses the characteristics of energy division among the multiple chains instead of single chain. We simulate our new method using MATLAB R2014a software and simulation result demonstrates that the proposed model achieves less energy consumption compare to LEACH and PEGASIS. The rest of the paper is organised as follows. Section II reviews different chain based protocol and related work. Section III presents a proposed model. Section IV gives comparative analysis of proposed method with existing LEACH and PEGASIS protocol. II. RELATED WORK In the recent years many energy efficient routing protocol has been proposed some of the major protocols are given below. A. LEACH Protocol: LEACH [6] is the First and most popular energy- efficient hierarchical clustering algorithm for WSNs that is used for reducing power consumption. LEACH is based on data aggregation technique that combines the original data into a smaller size of data that carry only meaningful information to all individual sensors. LEACH divides the a network into several cluster of sensors, which are constructed by using localized coordination and control not only to reduce the amount of data that are transmitted to the sink, but also to make routing and data dissemination more scalable and robust. LEACH uses a randomize rotation of high-energy CH(Cluster Head) position rather than selecting in static manner, to give a chance to all sensors to act as CHs and avoid the battery depletion of an individual sensor and die quickly. LEACH uses single-hop routing where each node can transmit directly to the cluster-head and the sink. Mukesh Prajapat et al, / (IJCSIT) International Journal of Computer Science and Information Technologies, Vol. 5 (6) , 2014, 8033-8036 www.ijcsit.com 8033