Mo Ghorbanzadeh

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Spectrum sharing is an elegant solution to addressing the scarcity of the bandwidth for wireless communications systems. This research studies the feasibility of sharing the spectrum between sectorized cellular systems and stationary radars interfering with certain sectors of the communications infrastructure. It also explores allocating optimal resources(More)
National Telecommunications and Information Administration (NTIA) has proposed vast exclusions zones between radar and Worldwide Interoperability for Microwave Access (WiMAX) systems which are also being considered as geographic separations between radars and 3.5 GHz Long Term Evolution (LTE) systems without investigating the changes induced by the distinct(More)
A hidden Markov model approach is leveraged to detect potentially malicious Android applications at runtime based on analyzing the Intents passing through the binder. Real world applications are emulated, their Intents are parsed, and, after appropriate discretization of the Intent action fields, they train the hidden Markov models for recognizing anomalous(More)
Permission structure of Android applications introduces security vulnerabilities which can be readily exploited by third-party applications. We address certain exploitability aspects by means of neural networks, effective classification techniques capable of verifying the application categories. We devise a novel methodology to verify an application(More)
This paper presents a radio resource block allocation optimization problem for cellular communications systems with users running delay-tolerant and real-time applications, generating elastic and inelastic traffic on the network and being modelled as logarithmic and sigmoidal utilities respectively. The optimization is cast under a utility proportional(More)
Optimal resource allocation elegantly kaizens bandwidth utilization in present-day communications systems carrying distinctive traffic types with specific quality of service (QoS) requirements, whose fulfillment may elevate users' quality of Experience (QoE). This paper investigates the QoE of users running real-life real-time and delay-tolerant(More)
We study and compare modeling an end-to-end network by conventional, bivariate, and exponential observation hidden Markov processes. Furthermore, effects of μ-law, Lindle-Boyde-Gray, and uniform quantization approaches on the modeling granularity is explored. We performed experiments using synthetic representative data from a traffic-modeler autoregressive(More)
Optimal resource allocation is of paramount importance in utilizing the scarce radio spectrum efficiently and provisioning quality of service for miscellaneous user applications, generating hybrid data traffic streams in present-day wireless communications systems. A dynamism of the hybrid traffic stemmed from concurrently running mobile applications with(More)
National Telecommunications and Information Administration (NTIA) has proposed vast exclusions zones between radar and Worldwide Interoperability for Microwave Access (WiMAX) systems which are also being considered as geographic separations between radars and 3.5 GHz Long Term Evolution (LTE) systems without investigating any changes induced by the distinct(More)