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Impulse Technologies
                                      Beacons U to World of technology
        044-42133143, 98401 03301,9841091117 ieeeprojects@yahoo.com www.impulse.net.in




    Understanding Node Localizability of Wireless Ad Hoc and Sensor
                                         Networks
   Abstract—

         Location awareness is highly critical for wireless ad-hoc and sensor
   networks. Many efforts have been made to solve the problem of whether or not a
   network can be localized. Nevertheless, based on the data collected from a working
   sensor network, it is observed that the network is not always entirely localizable.
   Theoretical analyses also suggest that, in most cases, it is unlikely that all nodes in
   a network are localizable, although a (large) portion of the nodes can be uniquely
   located. Existing studies merely examine whether or not a network is localizable as
   a whole; yet two fundamental questions remain unaddressed: First, given a
   network configuration, whether or not a specific node is localizable? Second, how
   many nodes in a network can be located and which are them? In this study, we
   analyze the limitation of previous works and propose a novel concept of node
   localizability. By deriving the necessary and sufficient conditions for node
   localizability, for the first time, it is possible to analyze how many nodes one can
   expect to locate in sparsely or moderately connected networks. To validate this
   design, we implement our solution on a real-world system and the experimental
   results show that node localizability provides useful guidelines for network
   deployment and other location-based services.




  Your Own Ideas or Any project from any company can be Implemented
at Better price (All Projects can be done in Java or DotNet whichever the student wants)
                                                                                          1

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  • 1. Impulse Technologies Beacons U to World of technology 044-42133143, 98401 03301,9841091117 ieeeprojects@yahoo.com www.impulse.net.in Understanding Node Localizability of Wireless Ad Hoc and Sensor Networks Abstract— Location awareness is highly critical for wireless ad-hoc and sensor networks. Many efforts have been made to solve the problem of whether or not a network can be localized. Nevertheless, based on the data collected from a working sensor network, it is observed that the network is not always entirely localizable. Theoretical analyses also suggest that, in most cases, it is unlikely that all nodes in a network are localizable, although a (large) portion of the nodes can be uniquely located. Existing studies merely examine whether or not a network is localizable as a whole; yet two fundamental questions remain unaddressed: First, given a network configuration, whether or not a specific node is localizable? Second, how many nodes in a network can be located and which are them? In this study, we analyze the limitation of previous works and propose a novel concept of node localizability. By deriving the necessary and sufficient conditions for node localizability, for the first time, it is possible to analyze how many nodes one can expect to locate in sparsely or moderately connected networks. To validate this design, we implement our solution on a real-world system and the experimental results show that node localizability provides useful guidelines for network deployment and other location-based services. Your Own Ideas or Any project from any company can be Implemented at Better price (All Projects can be done in Java or DotNet whichever the student wants) 1