Energy-Efficient Querying of Wireless Sensor Networks

<p>Due to the distributed nature of information collection in wireless sensor networks and the inherent limitations of the component devices the ability to store locate and retrieve data and services with minimum energy expenditure is a critical network function. Additionally effective search protocols must scale efficiently and consume a minimum of network energy and memory reserves. A novel search protocol the Trajectory-based Selective Broadcast Query protocol is proposed. An analytical model of the protocol is derived and an optimization model is formulated. Based on the results of analysis and simulation the protocol is shown to reduce the expected total network energy expenditure by 45.5 percent to 75 percent compared to current methods. This research also derives an enhanced analytical node model of random walk search protocols for networks with limited-lifetime resources and time-constrained queries.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>