Abstract
Wireless sensor network (MSN) is a wirelessly interconnected network. WSN promises a wide range of potential such as surveillance, military and civilian, to name just a few, applications. A sensor node senses the environment and delivers data to the sink. Energy saving is one of the keys to challenge network life time. LEACH protocol has been incorporated to extend network life time. This protocol forms clusters of the sensor nodes and elect one of them to become a Cluster Head (CH) to route data cluster to sink. In cluster, communication uses TDMA technique. This latter organizes transmission time (Time Slot) which corresponds to each node member of cluster. When a node dies, time slot corresponding to this node will be free. In this paper, we will present LEACH comportments after a node dies, then we will propose some ideas to invest its time slots by alive node members to maximize data reception time parameter so throughput end-to-end. This parameter is very important for real-time data. Finally, we will simulate this idea with Network Simulator (NS2) to argue for our propositions.
Highlights
Wireless Sensor Networks (WSNs) have gained booming interest in recent years
We run our technique using NS-2 simulator [13] with LEACH protocol [14] to determine its benefits. We will compare it to LEACH in terms of Throughput relative to the number of the alive nodes, energy dissipation per time
We use the average of 10 runs for each set of tested www.ijacsa.thesai.org parameters and we neglect the case of the rotation of free time slots by living cluster nodes
Summary
Wireless Sensor Networks (WSNs) have gained booming interest in recent years. They are used in various fields: military, agriculture, meteorology and medicine. Wireless Sensor Network consists of a huge number of nodes called sensor nodes. They are deployed in a spacious area. Non-cluster head sensor nodes take the information and send it to the respective cluster head. This latter sends the data to the base station directly in order to resolve the life time problem, which’s due to the fact that when a battery node dies, it becomes useless.
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