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 30 for “"Cell edge"”.
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Performance Modelling and Analysis of a New CoMP-based Handover Scheme for Next Generation Wireless Networks. Performance Modelling and Analysis for the Design and Development of a New Handover Scheme for Cell Edge Users in Next Generation Wireless Networks (NGWNs) Based on the Coordinated Multi-Point (CoMP) Joint Transmission (JT) Technique
Inter-Cell Interference (ICI) will be one of main problems for degrading the performance of future wireless networks at cell edge. This adverse situation will become worst in the presence of dense deployment of micro and macro cells. In this context, the Coordinated Multi-Point (CoMP) technique was …
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Evaluating the effectiveness of Cooperative/Coordinated Multipoint (CoMP) LTE feature in uplink and downlink transmissions
… to interference plus noise power (SINR). Inter-cell interference caused by neighbouring base stations (BSs) has been identified as one of the most severe problem towards the deployment of LTE technology as it can significantly deteriorate the performance of cellside User Equipment (UE). However, …
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The relationship of cell morphology, density, and mechanical properties in a rigid polyurethane foam
… This work investigates the relationships between cell morphology, density, and mechanical properties in a molded polyurethane material using relatively small cylindrical molds. Understanding these relationships will help mechanical designers analyze and predict the responses of foam components …
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Exploiting the ability of Self Organizing Networks for inter-cell interference coordination for emergency communications in cellular networks
… the current scenario, radio planning of wireless cellular networks and analysis of radio performance should be agile because it is expected that in the near future we will be reaching to the point where there will be as many mobile devices as people in the world. So, there should be a rapid …
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Pegmatitic muscovites: effect of composition on optical and lattice parameters
… with both the optical properties and the unit cell parameters. The results of this study indicate refractive indices increase to the extent Fe and Ti constitute the octahedral cations, and to the extent OH rather than F coordinates to these cations. The optic angle 2VX decreases nearly linearly …
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Cooperative relaying in cellular networks for improving receiver diversity and cell radius
… became the significant research area in 3G/4G cellular networks. The cooperative terminals (relays) exploit a larger form of space diversity to relay signals to destinations when placed in between source and destination to combat the effects of fading induced by multipath signal propagation. …
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Load balancing using cell range expansion in LTE advanced heterogeneous networks
… of spectrum, load balancing and improvement of cell edge coverage amongst others. However, these solutions have inherent challenges such as inter-cell interference and poor mobility management. In heterogeneous networks there is transmit power disparity between macro cell and pico cell tiers, …
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COOPERATIVE COMMUNICATIONS FOR LTE-ADVANCED SYSTEMS: DOWNLINK RELAY AND PERFORMANCE OPTIMIZATION
… have been used to enhance coverage in commercial cellular networks, the use of more sophisticated fixed relays is relatively new. The main challenges faced by relay deployments in cellular systems are designing an improved and efficient relaying protocol, improving the desired signal and …
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Knowledge Distillation in DMRS CHEST ML to Optimize Radio Performance and Hardware Efficiency
… conditions. This thesis explores using knowledge distillation (KD) to improve machine learning-based channel estimation in 5G systems. A convolutional neural network (CNN) acts as a teacher model, trained on synthetic data, to create a lightweight student CNN through response-based and …
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The crystal chemistry of MTO₄ compounds with the zicron, scheelite, and monazite structure types
… cations. Using these similarities the unit cells of these structures can be placed in analogous orientations. This in turn leads to a better understanding of the geometrical aspects of the reconstructive phase transformations that occur among the structure types as functions of temperature …
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Linear Precoding for Downlink Network MIMO Systems
… challenging. Attempt to design an effective cellular network has been receiving lots of attention and demand to serve more users in the network is increasing. Supporting more users cannot be achieved easily mainly due to multi-user interference. Cell collaboration, also known as downlink …
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Robust Predictive Resource Allocation for Video Delivery Over Future Wireless Networks
… video is pushed to the users moving towards the cell edge while prebuffering is postponed for others heading to the cell center in order to minimize the transmission energy. The focus of this thesis is to present a Robust Predictive Resource Allocation (R-PRA) framework to tackle practical …
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Resource allocation in coordinated multipoint long term evolution-advanced networks
… Evolution-Advanced (LTE- Advanced) improves the cell-edge data rates and the network spectral efficiency through base station coordination. In order to achieve high quality of service (QoS) in CoMP network, resource allocation approach is one of the main challenges. The resource allocation …
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Low temperature aqueous solubility of fluorite at temperatures of 5, 25, and 50°C and ionic strengths up to 0.72M
… concentration of 50.2 ± 0.7 wt %. Fluorite unit cell edge lengths, volumes, and densities averaged 5.4630 ± 0.0007 Å, 163.04 ± 0.06 Å3, and 3.181 ± 0.009 g/cm3, respectively. The fluorite solubility results showed that fluorite dissolved congruently and increased in solubility with both …
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Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks
… to communication service providers (CSPs). Femto-cells due to their low capital expenditure (CAPEX) and operating expenditure (OPEX) have seen widespread adoption as a possible solution to the indoor coverage challenge. The major drawback of its adoption is the possibility of erratic but …
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Efficient radio resource management in next generation wireless networks
… means that mobile communication users at the cell-edge should have enhanced network performance. However, due to path loss (path attenuation), interference, and radio background noise, mobile communication users at the cell-edge can experience relatively poor transmission channel qualities and …
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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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Dynamics of Alpha5 Integrin, Paxillin, and Alpha-Actinin During Formation and Disassembly of Adhesions in Migratory Cells
… I have probed the mechanisms of eukaryotic cell migration by fusing the genes encoding proteins involved in cell migration to the gene for a green fluorescent protein, GFP. I ascertained that the novel fusion protein expressed by cells transfected with alpha5-GFP is correctly localized, is …
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An efficient up-link load reduction model based on clustering in vanets
… from the BS. Third, the handover problem in the cell edges makes the CHs try to reconnect with the BS. Fourth, duplicated information sent from CHs to the BSs at the intersections make the BSs loaded by unnecessary information. This study proposed an Efficient Up-link Load Reduction (EULR) model …
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On enhancing connectivity and efficiency in 5G and emerging 6G mobile networks
… and outage performance, particularly for cell-edge users. Overall, this thesis presents a unified and experimentally grounded framework for enhancing performance, scalability, and energy efficiency in 5G and future 6G wireless networks, providing practical insights for smart industrial and …
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