Browsing by Author "Srinath, T.V."
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Item Analysis of mobile beacon aided in-range localization scheme in ad hoc wireless sensor networks(2006) Srinath, T.V.; Katti, A.K.; Ananthanarayana, V.S.In this paper, We mathematically model the In-Range localization scheme in the presence of a Mobile Beacon. In the In-Range localization scheme, a sensor with unknown location is localized to a disc centered at the position of the beacon, if the sensor under consideration can successfully decode a transmission from the beacon. In our approach a Mobile Beacon guided by a mobility model is used to generate the virtual beacons, there by eliminating the need to deploy static beacons that are required in the classical In-Range localization scheme. For analysis, we consider a Mobile Beacon guided by the Random Way Point (RWP) mobility model with In-Range localization scheme. The main contribution of this paper consists of mathematical models for the In-Range localization parameters in the presence of a Mobile Beacon guided by the RWP mobility model. Copyright 2006 ACM.Item Analysis of mobile beacon aided in-range localization scheme in ad hoc wireless sensor networks(2006) Srinath, T.V.; Katti, A.K.; S, V.S.In this paper, We mathematically model the In-Range localization scheme in the presence of a Mobile Beacon. In the In-Range localization scheme, a sensor with unknown location is localized to a disc centered at the position of the beacon, if the sensor under consideration can successfully decode a transmission from the beacon. In our approach a Mobile Beacon guided by a mobility model is used to generate the virtual beacons, there by eliminating the need to deploy static beacons that are required in the classical In-Range localization scheme. For analysis, we consider a Mobile Beacon guided by the Random Way Point (RWP) mobility model with In-Range localization scheme. The main contribution of this paper consists of mathematical models for the In-Range localization parameters in the presence of a Mobile Beacon guided by the RWP mobility model. Copyright 2006 ACM.Item Localization in resource constrained sensor networks using a mobile beacon with in-ranging(2006) Srinath, T.V.In this paper1, We provide a mechanism for the problem of localization in resource constrained sensor networks by extending the principles of In-Range technique using a mobile beacon. The main advantage of this mechanism is that, it inherits all the advantages of In-Range technique, eliminates the need to deploy beacons in the sensor network and satisfy the requirements of localization algorithms for sensor networks. Location awareness of sensor nodes plays a critical role in most of the sensor network applications. Our mechanism assumes only a basic communication capability of sensor nodes and does not require any additional infrastructure. We employ a single mobile beacon equipped with a GPS receiver for localization. Each broadcast position of the mobile beacon acts as a stationary beacon at that point (known as a virtual beacon) thereby eliminating the need to deploy GPS equipped beacons in the sensor network. The motion of the mobile beacon localizes some of the sensor nodes, which in turn aid in localization of their neighbors using the iterative In-Range technique. Simulation results are presented to evaluate the performance of the proposed mechanism. An Implementation on sensor network of MICA2 motes is used to evaluate the functionality of the proposed algorithm. � 2006 IEEE.Item Localization in resource constrained sensor networks using a mobile beacon with in-ranging(IEEE Computer Society, 2006) Srinath, T.V.In this paper1, We provide a mechanism for the problem of localization in resource constrained sensor networks by extending the principles of In-Range technique using a mobile beacon. The main advantage of this mechanism is that, it inherits all the advantages of In-Range technique, eliminates the need to deploy beacons in the sensor network and satisfy the requirements of localization algorithms for sensor networks. Location awareness of sensor nodes plays a critical role in most of the sensor network applications. Our mechanism assumes only a basic communication capability of sensor nodes and does not require any additional infrastructure. We employ a single mobile beacon equipped with a GPS receiver for localization. Each broadcast position of the mobile beacon acts as a stationary beacon at that point (known as a virtual beacon) thereby eliminating the need to deploy GPS equipped beacons in the sensor network. The motion of the mobile beacon localizes some of the sensor nodes, which in turn aid in localization of their neighbors using the iterative In-Range technique. Simulation results are presented to evaluate the performance of the proposed mechanism. An Implementation on sensor network of MICA2 motes is used to evaluate the functionality of the proposed algorithm. © 2006 IEEE.