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Browsing VTechWorks Administration by Author "Abdel-Rahman, Mohammad J."

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    Indoor Millimeter-Wave Systems: Design and Performance Evaluation
    Kibilda, Jacek; MacKenzie, Allen B.; Abdel-Rahman, Mohammad J.; Yoo, Seong Ki; Giordano, Lorenzo Galati; Cotton, Simon L.; Marchetti, Nicola; Saad, Walid; Scanlon, William G.; Garcia-Rodriguez, Adrian; Lopez-Perez, David; Claussen, Holger; DaSilva, Luiz A. (IEEE, 2020-06-01)
    Indoor areas, such as offices and shopping malls, are a natural environment for initial millimeter-wave (mmWave) deployments. Although we already have the technology that enables us to realize indoor mmWave deployments, there are many remaining challenges associated with system-level design and planning for such. The objective of this article is to bring together multiple strands of research to provide a comprehensive and integrated framework for the design and performance evaluation of indoor mmWave systems. This article introduces the framework with a status update on mmWave technology, including ongoing fifth generation (5G) wireless standardization efforts and then moves on to experimentally validated channel models that inform performance evaluation and deployment planning. Together these yield insights on indoor mmWave deployment strategies and system configurations, from feasible deployment densities to beam management strategies and necessary capacity extensions.
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    Market-Driven Stochastic Resource Allocation Framework for Wireless Network Virtualization
    Gomez, Marcela M.; Chatterjee, Shubhajeet; Abdel-Rahman, Mohammad J.; MacKenzie, Allen B.; Weiss, Martin B. H.; DaSilva, Luiz A. (IEEE, 2020-03-01)
    Wireless network virtualization is emerging as a potential game-changer for fifth-generation wireless networks. Virtualization of network resources (e.g., infrastructure and spectrum) brings several advantages. One key advantage is that various network operators can robustly share their virtualized network resources to extend coverage, increase capacity, and reduce costs. However, inherent features of wireless communications, e.g., the uncertainty in user equipment locations and channel conditions, impose significant challenges on virtualization and sharing of the network resources. In this context, we propose a novel three-layered virtualization framework, based on a matching game model and stochastic resource allocation. Our proposed architecture aims at guaranteeing user satisfaction and maximizing the revenue for operators, with reasonable computational complexity, and affordable network overhead.