"To support smart vehicular services especially in the future driverless era, the vehicular networks are expected to support high-bandwidth content delivery and reliable accessibility of multifarious applications. However, the limited radio spectrum resources, the inflexibility in accommodating dynamic traffic demands, and the geographically constrained fixed infrastructure deployment of current terrestrial networks pose great challenges in ensuring ubiquitous, flexible, and reliable network connectivity. This book investigates mobile edge content caching and delivery in heterogeneous vehicular networks (HetVNets) to provide better service quality for vehicular users with resource utilization efficiency enhancement. Specifically, this book introduces the background of HetVNets and mobile edge caching, provides a comprehensive overview of mobile edge caching-assisted HetVNet techniques in supporting vehicular content delivery, and proposes/designs mobile edge content caching and delivery schemes in different HetVNet scenarios respectively to enhance vehicular content delivery performance. Afterward, this book outlines open issues and research directions in future mobile edge caching-assisted space-air-ground integrated vehicular networks. The topics addressed in this book are crucial for both the academic community and industry, since mobile edge caching in heterogeneous networks has become an essential building block for the communication systems. The systematic principle of this book provides valuable insights on the efficient exploitation of heterogeneous network resources to fully unleash their differential merits in supporting vehicular applications. In addition, this book considers different HetVNet scenarios from terrestrial HetVNets to air-ground HetVNets and space-air-ground HetVNets, which can provide a general overview for interested readers with a comprehensive understanding of applying mobile edge caching techniques in enhancing vehicular content delivery performance, and offer a systematized view for researchers and practitioners in the field of mobile edge caching to help them design and optimize the desired vehicular content delivery systems. Provides in-depth studies on mobile edge content caching and delivery scheme design for three typical HetVNet scenarios; Comprehensively covers the analysis, design, and optimization of the mobile edge content caching-assisted HetVNets; Systematically addresses vehicle mobility, network service interruptions, and dynamic service request distribution issues in the mobile edge content caching and delivery."-- Publisher's website

lgli/P:\springer_dnd140621\springer\10.1007%2F978-3-030-88878-7.pdf

nexusstc/Mobile Edge Caching in Heterogeneous Vehicular Networks (SpringerBriefs in Computer Science)/24bb0cb2adb111e63f8c181fac161881.pdf

lgrsnf/2995.pdf

zlib/no-category/Huaqing Wu/Mobile Edge Caching in Heterogeneous Vehicular Networks_18784891.pdf

Wu, Huaqing; Lyu, Feng; Shen, Xuemin

Huaqing Wu, Feng Lyu, Xuemin Shen

Adobe InDesign 16.3 (Windows)

Springer International Publishing AG

Springer Nature Switzerland AG

SpringerBriefs in computer science, Cham, Switzerland, 2022

SpringerBriefs in Computer Science Ser, Cham :, 2021

Springer Nature, Cham, 2021

Switzerland, Switzerland

2, 20211202

producers:
Adobe PDF Library 10.0.1

{"isbns":["3030888770","9783030888770"],"last_page":132,"publisher":"Springer","source":"libgen_rs"}

Preface 6
Contents 9
Acronyms 12
1 Introduction 14
1.1 Overview of Vehicular Content Delivery Networks 14
1.2 Mobile Edge Caching-Assisted Content Delivery in HetVNets 17
1.2.1 Overview of the Heterogeneous SAGVN 18
1.2.2 Mobile Edge Caching-Assisted Content Delivery 21
1.3 Technical Challenges 24
1.4 Aim of the Monograph 25
References 26
2 Techniques for Content Delivery Performance Enhancement 29
2.1 HetVNet Techniques to Off-load Access Networks 29
2.1.1 Vehicular Traffic Offloading in the Terrestrial HetVNet 30
2.1.2 UAV-Assisted Traffic Offloading in the AGVN 33
2.1.3 Satellite-Assisted Traffic Offloading in the SAGVN 34
2.2 Caching-Assisted Content Delivery to Off-load Backhaul Networks 37
2.2.1 Content Placement Schemes 37
2.2.2 Content Delivery Schemes 40
2.3 Summary 41
References 42
3 Delay-Minimized Mobile Edge Caching in the Terrestrial HetVNet 47
3.1 System Scenario and Problem Formulation 49
3.1.1 Scenario Description 49
3.1.2 On–Off Service Model 51
3.1.3 Fountain Coding 52
3.1.4 Problem Formulation 53
3.2 Average Delivery Delay Analysis in HetVNet 54
3.2.1 Determination of Coding Parameters 54
3.2.2 Effective Service Time 56
3.2.3 Average Delivery Delay Analysis 57
3.3 Matching-Based Content Caching Scheme 60
3.3.1 Complexity Analysis 61
3.3.2 Preference Lists 61
3.3.3 Matching-Based Content Placement Policy 62
3.4 Performance Evaluation 63
3.5 Summary 70
References 70
4 Optimal UAV Caching and Trajectory Design in the AGVN 72
4.1 System Scenario and Problem Formulation 74
4.1.1 Scenario Description 74
4.1.2 Communication and UAV Energy Consumption Models 77
4.1.3 Problem Formulation 80
4.2 Design of LB-JCTO 80
4.2.1 Offline Optimization 81
4.2.2 Offline Model Training and Online Decision 82
4.3 CBTL-Based Offline Optimization 83
4.3.1 Determining the Number of UAVs 83
4.3.2 Vehicle Clustering 84
4.3.3 JCTO-TDL Optimization in the CBTL Algorithm 86
4.3.4 JCTO-CL Optimization in the CBTL Algorithm 88
4.4 CNN-Based Learning for Online Decision 88
4.4.1 Image-Like Input Data 89
4.4.2 CNN-Based Model Training 89
4.5 Performance Evaluation 91
4.5.1 Experimental Settings 91
4.5.2 Evaluation of CBTL-Based Offline Optimization 91
4.5.3 Evaluation of EI-Based CNN Learning Model 94
4.6 Summary 97
References 98
5 Load- and Mobility-Aware Cooperative Content Delivery in the SAGVN 100
5.1 System Model and Problem Formulation 102
5.1.1 Scenario Description and Assumptions 102
5.1.2 Communication Model 103
5.1.3 Problem Formulation 105
5.2 Problem Analysis Based on Decomposition 106
5.2.1 Optimization of xxxx with Known xxxx and xxxx 106
5.2.2 Delay Performance Gain with Bandwidth Allocation 108
5.3 LMA-ABC Scheme for Cooperative Content Delivery 110
5.3.1 Posterior Association Determination 110
5.3.2 Bandwidth Allocation with Diminishing Gain Effect 110
5.3.3 LMA-ABC Scheme Design 111
5.4 Performance Evaluation 112
5.5 Summary 118
References 119
6 Conclusions and Future Research Directions 121
6.1 Conclusions 121
6.2 Future Research Directions 122
Index 124

2022-01-16