Neha Sharma et al, International Journal of Computer Science and Mobile Computing, Vol.7 Issue.12, December- 2018, pg. 150-153 © 2018, IJCSMC All Rights Reserved 150 Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320–088X IMPACT FACTOR: 6.017 IJCSMC, Vol. 7, Issue. 12, December 2018, pg.150 – 153 Energy Efficient Techniques of IoT: A Review Neha Sharma Research Scholar, Bahra University, Waknaghat, Shimla Hills nehasharma7576@gmail.com Parul Gazta Assistant Professor, Bahra University, Waknaghat, Shimla Hills parulgazta@gmail.com Abstract: The IOT network is the decentralized type of network which can sense the information and pass it to base station. Due to small size of the sensor nodes, the energy consumption is the major issue of the network. The LEACH is the energy efficient protocol which can divide whole network into fixed size clusters. In each cluster, cluster heads are selected which can transmit data to base station. The various clustering techniques are proposed so far to improve lifetime of IoT. In this review paper, energy efficient techniques of IoT are reviewed and analyzed in terms of certain parameters Keywords: LEACH, IoT, Energy efficient Introduction IoT stands for internet of things which is termed by the of the Radio Frequency Identification (RFID) development community in 1999. The application of the IoT is widely used in many applications due to large growth of mobile devices, embedded and omnipresent communication, cloud computing and data analytics [1]. Large numbers of devices are connected over public or private Internet Protocol networks with the help of billions of objects can sense, communicate and share information. The data collected by these interconnected devices continuously, after which it is analyzed to perform action in order to provide a wealth of intelligence for planning, management and decision making. The main objective here is to interconnect all the things present within this self-configuring wireless network which includes numerous sensors. An object that gets involved within a communication chain is also present. The combination of communication capabilities which are given by the data transmission is given by these lines present. RFID is known to be the main object within the IoT. The building of global infrastructure for RFID tags which is known to be a wireless layer present on the top of Internet [2]. The communication is made amongst network of interconnected objects and the interconnected computers. There is a different Internet Protocol (IP) location for the objects at some instants. These objects are embedded within the complex systems. In order to gather the information here, the various sensors are used which gather information related to temperature, and other aspects present in the surroundings. The sensors present near to each other transfer the gathered information in order to