International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 03 | March -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Performance Analysis of Clustering Protocols for Wireless Sensor Network Tejas Rana Electronics & Communication Dr. S. & S. S. Gandhy Govt. Eng. College Surat, India ---------------------------------------------------------------------***---------------------------------------------------------------------
The operation of leach protocol consists of two phases. Set up phases & steady state phase. In the set up phase each node decides whether or not to become cluster head for the current head. For the current round based on threshold,
Abstract - Wireless sensor networks (WSNs) are in large demand in recent years as a wide growth of wireless devices. WSNs consist of lots of tiny node & it is no longer useful when battery dies, so to avoid this issue many protocols were introduced. In this paper we analyses some clustering protocol like LEACH, DSC, FTEEC & MEFC protocol.
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1. INTRODUCTION Wireless sensor network (WSN) consists of number of low power, low cost sensor nodes which are used in different applications such as environment monitoring, surveillance, remote sensing. Designing energy-efficient and reliable protocols is highly important in a resourceconstrained wireless sensor network (WSN). Clustering protocols of WSNs are considered very energy efficient; Clustering implies dividing sensor nodes in group according to their nature and requirements. They can execute different function. This paper focusing on clustering protocol in WSNs. & give idea to build energy efficient and fault tolerant WSN. In this paper we get brief review of LEACH, DSC, FTEEC and MEFC protocol & show the performance by simulation & comparisons with each other.
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Where p is the cluster head probability, G is the set of nodes that have not been cluster heads in the last 1/p rounds and r is the current round. In LEACH each node becomes a cluster head only for a single time for r rounds. In the beginning of each rounds every nodes belong to G. The node is selected as a cluster head for the current round if the random number is less than the T(i) otherwise the node is expected to join the nearest cluster head in its neighborhood. [1] CH broadcasts a message to rest of nodes, depends of the signal strength of the message each node select CH. The CH creates a TDMA scheme & assigns each node a time slot .In the steady state phase cluster heads collect data from sensor nodes. Aggregate he data and send it to BS. [1]
2. LEACH Protocol LEACH is the low energy adaptive hierarchy protocol which is TDMA bases MAC protocol. The concept of LEACH is to organize WSN in to clusters to improve the life of WSN & by decreasing the energy used to generate & maintain cluster heads. [2]
3. DSC protocol DSC stands for dynamic & static clustering. IN dynamic case DSC forms clusters for every round while in static, the clusters are fixed for 10 rounds & CH position rotates. Dynamic clustering is divided in to rounds & each round consists two phases. Set up phase and Steady state phase. Set up phase work same as LEACH. In set up phase clusters are formed & CH selected, while in steady state phase, CHs collect the data and send it to the base station.
Fig. 1: Leach Structure [2]
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