A survey of Energy Efficient Clustering in Wireless Sensor Network Astha Gaur 1 and Tarun Kumar Dhiman 2 1 M. Tech Scholar, Dept. of C.S.E, GIMT, Kanipla, Kurukshetra, India Email:aasthaagaur@gmail.com 2 Assistant Professor, Dept. of C.S.E, GIMT, Kanipla, Kurukshetra, India Email:tarun.dhiman@gmail.com Abstract—Wireless Sensor Network (WSN) consists of a collection of battery-powered sensor nodes which send sensed data to base station. Wireless sensor nodes are working by using small batteries, which have limited energy and also may not easily rechargeable. Thus energy saving is necessary to increase the lifetime of wireless sensor networks. Various clustering techniques have been invented to increase energy of the sensor nodes in WSN. This paper presents a survey of different clustering techniques in wireless sensor network, which increase the lifetime of network. Index Terms— Wireless Sensor Network, Cluster, Energy Efficient, Lifetime. I. INTRODUCTION In the past few years Wireless Sensor Network has become one of the popular technologies to collect information needed by a smart environment. The Wireless Sensor Network (WSN) is a collection of hundreds or thousands of battery powered tiny sensor nodes. These nodes have capacity of sensing its area and establishing wireless communication between nodes. Sensor nodes also doing computational and processing operations[2].A wireless sensor network consists of a base station and a set of distributed sensor nodes which sense the physical environment in terms of temperature, humidity, light, sound, vibration etc. The sensor nodes collect data from their environment and send it to the base station [1]. WSN should take some major security requirement which is basic requirement for any wireless sensor network for secure mechanism are like data integrity, data confidentiality, data availability, data authentication, data freshness etc. Wireless Sensor Network (WSN) is used in a wide area of different application such as in health, industry, military,preventing natural disaster and area monitoring application etc. So it becomes the necessity to save energy and also increase the lifetime of wireless sensor network. The lifetime of the sensor network depends on the energy efficiency of the network, if wireless sensor network is energy efficient, then only we say that the lifetime of the network will be more [4]. II. CLUSTERING To support data collection through efficient network, sensor nodes partitioned into a number of small groups which called clusters. The clustering sensor node is an effective and efficient technique. Clustering for Grenze ID: 02.IETET.2016.5. 24 © Grenze Scientific Society, 2016 Proc. of Int. Conf. on Emerging Trends in Engineering & Technology, IETET