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title

MONITORING BROAD CAST DELAY OF WIRELESS NETWORK WITH USING SCHEDULING ALGORITHM

Author(s):

Dr. G. Mahadevan

Keywords:

Wireless Sensor Network (WSN), critical event monitoring, sleep scheduling, broadcasting delay, multichannel.

Abstract

In this paper, we focus on critical event monitoring in wireless sensor networks (WSNs), where only a small number of packets need to be transmitted most of the time. When a critical event occurs, an alarm message should be broadcast to the entire network as soon as possible. To prolong the network lifetime, some sleep scheduling methods are always employed in WSNs, resulting in significant broadcasting delay, especially in large scale WSNs. In this paper, we propose a novel sleep scheduling method to reduce the delay of alarm broadcasting from any sensor node in WSNs. Specifically, we design two determined traffic paths for the transmission of alarm message, and level-by-level offset based wake-up pattern according to the paths, respectively. When a critical event occurs, an alarm is quickly transmitted along one of the traffic paths to a centre node, and then it is immediately broadcast by the centre node along another path without collision. Therefore, two of the big contributions are that the broadcasting delay is independent of the density of nodes and its energy consumption is ultra low. Exactly, the upper bound of the broadcasting delay is only 3D þ 2L, where D is the maximum hop of nodes to the centre node, L is the length of sleeping duty cycle, and the unit is the size of time slot.

Other Details

Paper ID: IJSARTV
Published in: Volume : 4, Issue : 12
Publication Date: 12/18/2018

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