无线通信网络中的协作缓存管理

发布时间：2022-12-18 00:02

　　随着各种智能终端的大规模普及和移动数据流量的爆炸式增长,当前无线网络中的基础设施和移动设备面临着容量受限的问题,在第五代（Fif th-ge neration,5G）移动通信网络中该问题将更加严峻。缓解该问题的最新方法是通过机会通信来卸载数据通信量一—协调多个网络节点（如智能手机、笔记本电脑、基站等）实现缓存共享。由于协作缓存管理能够提升网络吞吐量并且减少通信开销,因此无线通信网络中的协作缓存管理成为最近的热门研究课题。协作缓存策略在无线通信中发挥重要作用,本论文研究了以内容为中心的移动自组织网络和设备到设备（device-to-device,D2D）通信中的协作缓存管理。现有文献主要研究通过蜂窝网络链路利用高速缓存和用户关联策略的联合设计以及解决服务质量（quality of service,QoS）,较少考虑D2D传输设备的可用性。为解决此问题,本文提出了相应的协同缓存管理及解决方案以防止用户需求的冗余,并且展现了内容流行度分布性能的高度提升。本论文具体研究总结如下。1)为了优化以内容为中心的无线自组织网络中的缓存配置,提出了一种协作组缓存策略,其中以缓存命中概率作为优化缓存配置目... 

【文章页数】：101 页

【学位级别】：博士

【文章目录】：
摘要
ABSTRACT
Acknowledgement
Biographical Sketch
Dedication
Chapter 1 Introduction
    1.1 Background
    1.2 Cooperative Caching in Wireless Communication Networks
    1.3 Problem Statement
    1.4 Literature Review
        1.4.1 Cooperative Caching in Content-Centric Wireless Ad Hoc Networks
        1.4.2 Cooperative Caching in Wireless D2D Caching Network
    1.5 Thesis Contributions
    1.6 Thesis Structure and Organization
    REFERENCES
Chapter 2 Cooperative Group Caching Strategy in Content-Centric Wireless AdHoc Networks
    2.1 Introduction
    2.2 Related Work and State of the Art
    2.3 System Model
        2.3.1 Cooperative Caching Table
        2.3.2 Cache Consistency
    2.4 Cooperative Group Caching
        2.4.1 Caching Fit Probability
    2.5 Performance Analysis
        2.5.1 Cache Hit Probability
        2.5.2 Average Number of Successfully Served Requests
    2.6 Simulation Results
    2.7 Summary
    REFERENCES
Chapter 3 Caching and Content Discovery for In-Network Caching in Device-to-Device Communications
    3.1 Introduction
    3.2 Related Work and State of the Art
    3.3 System Model
    3.4 Successful Content Delivery Criterion
    3.5 In-Network Cache Placement and Problem Formulation
    3.6 Duality-Based In-Network Cache Placement
    3.7 Simulation Results
    3.8 Summary
    REFERENCES
Chapter 4 Cooperative Crossing Cache Placement in Cache-Enabled Device toDevice-Aided Cellular Networks
    4.1 Introduction
    4.2 Related Work and State of the Art
    4.3 System Model
    4.4 Offloading Probability Analysis
        4.4.1 Self-Offloading Probability
        4.4.2 Offloading Probability in D2D Mode
        4.4.3 Offloading Probability in BS Mode
    4.5 Cooperative Crossing Cache Placement Optimization
        4.5.1 D.C.Proaramming Approach
    4.6 Simulation Results
        4.6.1 Impact of Varying Network Parameters
        4.6.2 Performance Comparison for Offloading Probability
    4.7 Summary
    REFERENCES
Chapter 5 Conclusion and Future Work
    5.1 Thesis Achievement
    5.2 Future Work
List of Abbreviations
List of Publications during PhD


【参考文献】：
期刊论文
[1]Multicast Capacity of Cache Enabled Content-Centric Wireless Ad Hoc Networks[J]. Guanglin Zhang,Jian Liu,Jiajie Ren.  中国通信. 2017(07)



本文编号：3720918