A CLUSTER-BASED MOBILE RELAY IN DATA-INTENSIVE WIRELESS SENSOR NETWORKS

K. P Suneetha, K. Ramesh

Abstract


Wireless Sensor Networks (WSNs) are increasingly used in data-intensive applications such as micro-climate monitoring, precision agriculture, and audio/video surveillance. A key challenge faced by data-intensive WSNs is to transmit all the data generated within an application’s lifetime to the base station despite the fact that sensor nodes have limited power supplies. We propose using low-cost disposable mobile relays to reduce the energy consumption of data-intensive WSNs. Our approach differs from previous work in two main aspects. First, it does not actively forward data from source node to base station but continues to listen to the source nodes and monitors the signal level around it. It gets active and forward the data from source node to base station, when there is a noticeable change in the signal level. In the sleeping time of the mobile relay, it does not consume more energy. Finally this technique produces an efficient energy optimization that can be integrated in the system that can be extensive simulations to examine the efficiency of our technique with varied network settings.


Keywords


Wireless sensor networks; energy optimization; mobile nodes; wireless routing; Network Architecture; Long-Lived Systems; Application Analysis;

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