Conference Papers

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    Pedestrian tracking algorithm in NLOS environments
    (2012) Gupta, C.; Biswas, D.
    This paper presents a cellular network based positioning algorithm in an urban environment characterized by multipath and severe non line of sight (NLOS) errors. The proposed algorithm mitigates localization error up to 75% as shown by the simulation results. The algorithm involves an initial averaging step followed by a prediction step for optimization, confining the estimated location close to the actual location. The proposed algorithm doesn't require additional hardware like sensors, accelerometers, gyroscopes etc. for localization as used in traditional cellular network based positioning methods. This approach can also be utilized in indoor positioning system (IPS) and global positioning systems (GPS) when at most three satellites are available. Low computational complexity of the algorithm is an added advantage. Utilization of orthogonal sources of information for improving accuracy is also explored. © 2012 IEEE.
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    Analysis of free physical memory in server virtualized system
    (Institute of Electrical and Electronics Engineers Inc., 2015) Mohan, R.; Guddeti, G.
    Degradation of the performance is the part of any long running software systems. This is due to memory leakage, unreleased file descriptors, round off errors and disk and memory fragmentation. It has been found that the memory leakage is the primary cause of any software performance degradation. In order to predict the software performance degradation, the analysis of the resource usage is essential. Here the free physical memory of a server virtualised system is analysed using time series analysis. © 2015 IEEE.