Energy Efficient Cluster Head Selection in Energy-LEACH
Wireless sensor network (WSN) is all time researched area as well as new concepts are introduced frequently. Here we will consider the hierarchical clustering routing protocol called LEACH and its variant as E-LEACH (energy leach). There may be a case in
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Abstract Wireless sensor network (WSN) is all time researched area as well as new concepts are introduced frequently. Here we will consider the hierarchical clustering routing protocol called LEACH and its variant as E-LEACH (energy leach). There may be a case in E-LEACH that selected cluster heads may be accumulated in certain specific area (or not distributed) due the consideration of only residual energy. Our proposed method includes the consideration of residual energy as well as selected cluster heads to be distributed in the entire wireless network. This balance load and increase the network life time.
Keywords Load balancing Distributed cluster heads (CHs) Energy efficient protocol Cluster heads (CHs) selection
Residual energy
1 Introduction WSN is a real time environment. That includes large number of sensor nodes and base station (sink) connected with each through wireless medium [1]. The sensor nodes are configured such that it is capable to sense the environment factors like temperature, pressure, motion and etc. This information is transmitted or forwarded (in the form of signals) to the base station (BS) where processing is carried out. In Wireless Sensor Networks (WSNs), battery, bandwidth, transmission power and processing capabilities are main constraints which cause maximum energy dissipation. So there must be some techniques which reduce energy consumption. WSNs facilitate many applications like H. Pambhar (&) K. Aghera N. Tada VVP Engineering College, Rajkot, Gujarat, India e-mail: [email protected] K. Aghera e-mail: [email protected] N. Tada e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2017 N. Modi et al. (eds.), Proceedings of International Conference on Communication and Networks, Advances in Intelligent Systems and Computing 508, DOI 10.1007/978-981-10-2750-5_21
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target tracking, environmental monitoring, habitat observation (Healthcare), Military monitoring, Building monitoring and so on. Most of these applications require only the aggregated value to be reported at the base station (or sink). Routing protocols which uses clustering technique are used for having higher energy efficiency and also for increasing network life-time. This paper proposes technique for selecting cluster head in energy-efficient manner with consideration of residual energy.
2 Leach 2.1
Introduction
LEACH is a routing protocol for wireless based network. As name suggest it is cluster-based, adaptive (node can be added or removed into the cluster) as well as hierarchical (more than one hope i.e. sensor node to CH and from CH to BS). In short LEACH includes following customized features such as: randomized selection of CHs, self-configuring cluster formation, controlled aggregated data transfer using routing techniques. Concept of LEACH protocol is resides on forming clusters which includes sensor nodes as a member based on RSSI and use local CH as routers to BS i.e. all members have to forward data which is sensed, to the BS through CH. It reduce
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