Call For Paper Volume:4 Issue:10 Oct'2017 |

ENERGY EFFICIENT OPTIMIZED SLEEP SCHEDULING AND TARGET PREDICTION IN WIRELESS SENSOR NETWORK

Publication Date : 31/12/2014



Author(s) :

R.Saranya , V.Subathra , S.Mangai.


Volume/Issue :
Volume 1
,
Issue 6
(12 - 2014)



Abstract :

In the development of various large-scale sensor systems, a particularly challenging problem is how to dynamically organize the sensors into a wireless communication network and route sensed information from the field sensors to a target system. A surveillance system, which tracks mobile targets, is one of the most important applications of wireless sensor networks. When nodes operate in a duty cycling mode, tracking performance can be improved if the target motion can be predicted and nodes along the trajectory can be proactively awakened. However, this will negatively influence the energy efficiency and constrain the benefits of duty cycling. The prime motivation of our work is to balance the inherent trade-off between the resource consumption and the accuracy of the target tracking in wireless sensor networks. Toward this objective ,a new energy-efficient dynamic optimization-based sleep scheduling and target prediction technique for large-scale sensor networks. We present an optimization-based sleep scheduling protocol (OSSP) to improve energy efficiency of proactive wake up duty cycle. A cluster-based scheme is exploited for optimization-based sleep scheduling. At every sampling instant, only one cluster of sensors that located in the proximity of the target is activated, whereas the other sensors are inactive. To activate the most appropriate cluster, we propose a non myopic rule, which is based on not only the target state prediction but also its future tendency. Finally, the effectiveness of the proposed approach is evaluated and compared with the state-of-the-art protocols in terms of tracking accuracy, inter node communication, and computation complexity. Keywords-Energy efficiency, target prediction, sleep scheduling ,proactive wakeup, wireless sensor networks(WSNs).


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ENERGY EFFICIENT OPTIMIZED SLEEP SCHEDULING AND TARGET PREDICTION IN WIRELESS SENSOR NETWORK

December 10, 2014