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Estimation of the location of a Mobile Station accurately is a key requirement to effectively provide a wide range of Location Based Services over mobile networks. Hence developing cellular positioning techniques has been a key research problem, with numerous localization solutions been proposed. These include technologies such as Cell ID, angle and time of(More)
The database correlation method (DCM) is a network based positioning technology which has shown superior in terms of accuracy. DCM is based on a pre-measured database of a location dependent variable such as received signal strength (RSS). Even though the technique has good potential, the practical difficulty in forming the database (fingerprints) using(More)
Wireless sensor networks are an emerging area of interest among embedded and wireless research groups around the globe. It is envisioned that these low power computers will become the enabling technology in pervasive computing and bring about the next paradigm shift in computing. We present a new type of MAC protocol that is applicable to a special type of(More)
Testing of wireless sensor network protocols can be tedious for large networks when mobility is added. Mainly because these networks involve a large number of nodes scattered in an ad-hoc configuration. Although there are several publicly available static sensor network testbeds, testbeds where mobility is facilitated are very rare. One of the main(More)
Due to the increasing complexity of embedded systems, simulation is of paramount importance during design phase. Often such systems must obey real-time constraints, calling for worst-case execution time assessment mechanisms. Although there is a wide range of simulation tools in the embedded systems domain, mechanisms for performing high abstraction level(More)
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