Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 90 for “"Cellular Network"”.
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Adaptive Predictive Handoff Scheme with Channel Borrowing in Cellular Network
Previously, we presented an extension of predictive channel reservation (PCR) scheme, called HPCR_CB, for handoff motivated by the rapid evolving technology of mobile positioning. In this thesis, the author proposes a new scheme, called adaptive PCR_CB (APCR_CB), which is an extension of HPCR_CB by …
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Distributed home agent mobility management for IP based cellular network.
The convergence of wireless networks both fixed and mobile with the Internet is creating a revolution in the way wireless networked resources interact with each other. This thesis is concerned with mobile networks and proposes to deal with the mobility management problems for the mobile computing …
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Spectrum sharing systems for improving spectral efficiency in cognitive cellular network
… optimal resource allocation in cognitive radio networks (CRN). Therefore, the spectrum sensing in wireless system with lower latency requirements is proposed first. In such systems with high spatial density of the base stations and users/objects, spectrum sharing enables spectrum reuse across …
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Determining optimal flight paths for cellular network connectivity for the transmission of real-time physiological data in support of big data analytics during airborne critical care transport
… two geographical points based on distance and cellular reception over the path. This methodology consists of two main concepts: coverage map generation, and path planning. Coverage map generation creates a grid map of the total planning space that contains coverage information for each grid …
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Interference Management of Inband Underlay Device-toDevice Communication in 5G Cellular Networks
… and bandwidth-consuming applications on the cellular network poses the need to drastically modify the cellular network architecture. A challenge faced by the network operators is the inability of the finite spectral resources to support the growing data traffic. The Next Generation Network …
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Integration of Open-Source Networks
Global System for Mobile Communications (GSM) networks are receiving increasing attention in the open-source community. Open-source software allows for deployment of a mobile cellular network with lower costs, more customization, and scalable control. Two popular projects have emerged that offer …
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Intelligent network selection and energy reduction for mobile devices
… has stimulated rapid progress in both Wi-Fi and cellular technologies. Before LTE was widely deployed, Wi-Fi speeds dominated cellular network speeds. But that is no longer true today. In a study we conducted with a crowd-sourced measurement tool used by over 1,000 users in 16 countries, we found …
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Cellular-Assisted Vehicular Communications: A Stochastic Geometric Approach
… of the node distributions in a vehicular ad hoc network (VANET) often leads to loss of connectivity and lower coverage. One possible way to improve this coverage is to allow the vehicular nodes to connect to the more reliable cellular network, especially in cases of loss of connectivity in the …
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Ultrawideband IEEE802.15.4a Cognitive Localization Methods for the 5G Environment
… for cognitive high-definition location-aware networks and devices devoid of the drawbacks of current positioning systems. The thesis therefore models a cognitive UWB IEEE802.15.4a LOS sufficient technique (ULOSTECH); with a framework for optimal UWB localization channel that utilizes combined …
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High-resolution simulation of pattern formation and coarsening dynamics in 3D convective mixing
… the C0₂ concentration field self-organizes as a cellular network structure in the diffusive boundary layer right beneath the top boundary. By studying the statistics of the cellular network, we identify various regimes of finger coarsening over time, the existence of a nonequilibrium stationary …
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Flexible backhaul design with cooperative transmission in cellular interference networks
… rates that can be achieved by mobile users in a cellular network. Interference management through cooperation has emerged as a major consideration for next-generation cellular networks. In this thesis, we focus on the downlink of a sectored hexagonal cellular network, under the assumption of …
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SDN-Enabled Data Offloading and Load Balancing In WLAN and Cellular Networks
Networking is an interesting field that is always evolving as new technologies that connect the world are adopted. There are many distinct types of networks, each of which is classified in a different way. One categorization is based on cellular wireless network generations, which have progressed …
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Performance analysis of assisted-GNSS receivers
… receivers that use assistance data provided by cellular networks. A typical example of such a receiver is a mobile phone including a Global Positioning System (GPS) receiver. Using assistance data such as an accurate estimate of the GPS system time is known to improve the availability and the …
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Field instrumentation for vocalizing avian survey
… of bird calls and relay data via the GSM cellular network to remote servers. Further, the system may be augmented with amplifiers and speakers in order to interact dynamically with the environment as to elicit vocalized responses, for example. The complete system is designed to meet the …
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Interference Mitigation for Cellular Networks: Fundamental Limits and Applications
… in modern communication systems. In a wireless cellular network, the performance of cell-edge users is severely limited by the intercell interference. This thesis studies the use of interference-channel and relay-channel techniques to mitigate intercell interference and to improve the throughput …
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Demonstration of an Effective 4G LTE Network Simulator to Analyze Performance and Ensure Reliable Communication
… challenges, there arises a need to foresee the cellular network evolution considering various factors like increase in number of users in a particular area, urbanization etc., and accordingly use the features of LTE to overcome the effects of them before actually deploying the network in the …
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Software-Defined Mobility Management and Base Station Control for Green Cellular Networks
… as smartphones and tablets and success of social networking services. Evolving cellular networks include emerging technologies such as Software-Defined Network (SDN) and Network Function Virtualization (NFV). SDN is an emerging network architecture that allows dynamic and flexible network …
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