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 17 of 17 for “"HetNets"”.
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Optimising energy efficiency and spectral efficiency in multi-tier heterogeneous networks : performance and tradeoffs
… solutions is to deploy Heterogeneous Networks (HetNets) consisting of several tiers of small cell BSs overlaid within the coverage area of the macrocells. The HetNets can provide better coverage and data rate to the cell edge users in comparison to the macrocells only deployment. One of the key …
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Interference Management in Heterogeneous Cellular Networks
Heterogeneous cellular networks (HetNets), comprising one or more tiers of small base stations (BSs) overlaid on the tier of well-planned macro BSs, have been commonly recognized as a cost-effective solution to cater to explosive demands on mobile data traffic. However, HetNets also bring some …
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Analysis, Modeling and Enhancement of LTE-A Heterogeneous Networks in a Real-World Environment
… cellular networks. The heterogeneous networks (HetNets) play an important role in serving users with different requirements and huge data demands. LTE-A HetNets have been extensively studied for many years. However, most research works have focused on theoretic studies of LTE-A HetNets. Only a …
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Advances in Stochastic Geometry for Cellular Networks
… known as the heterogeneous cellular networks (HetNets)) consisting of macro and small cells. For instance, the users tend to form hotspots or clusters at certain locations and the small cell BSs (SBSs) are deployed at higher densities at these locations of the hotspots in order to cater to the …
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Mobile small cell networks for next generation wireless communication systems
… indication suggests that heterogeneous networks (HetNets) and small cell networks (SCNs) are going to be big parts of 5G systems, particularly in facilitating massive data traffic and ubiquitous connectivity for users. In HetNets, small cells of different sizes are integrated into an existing …
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Online learning for self-optimization in heterogeneous networks
… the configuration of the IC mechanism in HetNets. We propose several online learning model-free solutions based on different techniques such as Response Surface Method (RSM) and Multi-Armed Bandit (MAB) algorithms. We also consider stochastic constraints in the learning process. In the …
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Resource management in wireless heterogeneous networks: an optimization perspective
… management in wireless Heterogeneous Networks (HetNets). Resource management plays an important role in satisfying the increasing need for wireless data in HetNets. Our emphasis is mainly on cross layer strategies. Various aspects of cross layer resource management can be formulated as …
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Analysis of Spectrum Efficiency and Energy Efficiency of Heterogeneous Cellular Networks
… deployment of heterogeneous cellular networks (HetNets) comprising large-scale macrocell base stations (BSs) overlaid with multiple tiers of small cell BSs. While the HetNets are capable of increasing the spectrum efficiency (SE) through higher reuse of the available spectrum, the operation of …
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Heterogeneous integration of optical wireless communications within next generation networks
… this work focus on a full system view of RF/OW HetNets with three primary areas of analysis. First, the need for network densication beyond current RF small cell implementations is evaluated. A media independent model is developed and results are presented that provide motivation for the …
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Enabling Dynamic Spectrum Access in 4G Networks and Beyond
… propose three DSA management frameworks for LTE+ HetNets: Spectrum Accountability Client Only, Cell Spectrum Management, and Domain Spectrum Management. Our Spectrum Accountability framework may serve as a guide in the development of future LTE+ network standards that account for DSA. We also …
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Network selection and optimisation of 4G heterogeneous multi-hop broadband wireless networks
… The main challenge facing the deployment of HetNets is provisioning backhaul connectivity for small cells and the selection is governed by availability and cost, not solely by capacity requirements. In practical deployments, the adoption of mixture of backhaul technologies is likely, creating …
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Comprehensive Performance Analysis of Localizability in Heterogeneous Cellular Networks
… single-tier and heterogeneous cellular networks (HetNets). More importantly, we study how availability of information about the location of proximate BSs at the MD impacts localizability. To this end, we derive tractable expressions, bounds, and approximations for the localizability probability of …
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Coverage Analysis and Resource Allocation in Heterogeneous Networks
… and design of multi-tier heterogenous networks (HetNets) with large density of access points (APs) located without a deterministic structure. We use stochastic geometry, specifically Poisson point processes (PPPs), to capture the randomness in AP locations. To differentiate their structural …
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Distributed Cognitive RAT Selection in 5G Heterogeneous Networks: A Machine Learning Approach
… inefficient at best and obsolete at worst in 5G HetNets. The foreseen embarrassment of riches and diversified propagation characteristics of network attachment points spanning multiple Radio Access Technologies (RAT) requires novel and creative context-aware system designs. The association and …
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Mobility Management in 5G Heterogeneous Networks: A Handover Scheme for Reducing Handover Failures
… (SC)-based ultra-dense heterogeneous networks (HetNets), which are underlaid on the coverage of a macro cell, are among the most promising alternatives for increasing capacity and coverage in 5G cellular networks. An ultra-dense network (UDN) refers to a setup in which the density of Radio …
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Inter-cell interference coordination in 5G ultra-dense networks
… system performance in 5G heterogeneous networks (HetNets). This is to improve Quality of Service (QoS) and maximize system throughput arising from the deployment of small cell overlay on macro BSs in heterogeneous cellular networks, which creates traffic load imbalance due to varying transmit …
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An Innovative RAN Architecture for Emerging Heterogeneous Networks: "The Road to the 5G Era"
… of importance, are: 1) Heterogeneous networks (HetNets); 2) flexible backhauling; 3) efficient traffic offload techniques; and 4) Self Organizing Networks (SONs). The anticipated solutions delivered by efficient interworking/ integration of these enabling technologies are not simply about …