5G D2D模式选择与资源分配算法研究

发布时间：2021-02-23 18:54

　　随着通信技术的进步,用户和应用的数量呈指数级增长,导致了资源的稀缺和功耗的增加。基站上的数据流量也随着用户数量的增加而增加。为了降低5G中蜂窝用户的中断概率,设备到设备（D2D）通信被认为是一个突出的解决方案。本文研究了D2D通信的模式选择和资源分配及其对网络关键性能指标的影响。该研究揭示了当蜂窝网络中可以形成和管理D2D用户群时,D2D以外的机会通信在提高能量效率、公平性和容量方面的巨大潜力。在蜂窝网络中引入D2D链路将带来许多技术问题。如D2D设备发现和链路建立、模式选择、资源分配和移动性管理。为了解决它们之间的共存问题,本文将重点研究蜂窝网络下的D2D模式选择和资源分配问题。目前对D2D通信的许多研究都是基于传统的通信模式:蜂窝模式、D2D共享模式和D2D专用模式。本文研究了新的D2D通信方式:本地路由方式、直接D2D方式和中继辅助D2D方式,对单小区基站的负载状态进行了分类,并针对不同层次设计了相应的通信方式。根据基站单小区的全网负荷,将其分为非满负荷和满负荷两种状态,将非满负荷分为低负荷和中负荷。详细分析了不同负载条件下D2D用户复用蜂窝用户上行资源的干扰。首先,考虑低负载下... 

【文章来源】：哈尔滨工业大学黑龙江省 211工程院校 985工程院校

【文章页数】：85 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
Chapter1 Introduction
    1.1 Research significance and background
    1.2 Research status of D2D communication mode selection and resource allocation at home and abroad
        1.2.1 Research status of D2D communication mode selection at home and abroad
        1.2.2 Research status of D2D communication resource allocation at home and abroad
    1.3 The main research contents and structure of this paper
Chapter2 Models of D2D communication
    2.1 Overview of5G D2D communication
        2.1.1 Key technologies of5G
        2.1.2 Types of D2D communication
    2.2 Key technologies of in-band D2D communication
        2.2.1 Mode selection
        2.2.2 Resource allocation
        2.2.3 Power allocation
    2.3 Summary of this chapter
Chapter3 D2D mode selection and resource allocation under non-full load
    3.1 System model
        3.1.1 D2D communication modes
        3.1.2 Principle of end-to-end rate estimation for D2D communication mode
    3.2 Research and simulation of D2D mode selection and resource allocation algorithm under low load
        3.2.1 Interference analysis
        3.2.2 The mode selection scheme based on maximum reachable rate
        3.2.3 Relay selection scheme
        3.2.4 Resource allocation scheme
        3.2.5 Simulation results and analysis
    3.3 D2D mode selection and resource allocation under medium load
        3.3.1 Interference analysis
        3.3.2 The mode primary selection based on channel state
        3.3.3 Joint mode selection and resource allocation scheme based on current network state
        3.3.4 Simulation results and analysis
    3.4 Summary of this chapter
Chapter4 Research and simulation of D2D mode selection and resource allocation algorithm under full- load
    4.1 System model
        4.1.1 D2D communication mode
        4.1.2 Interference analysis
    4.2 Mode selection and resource allocation fusion scheme based on Kuhn-Munkres algorithm
        4.2.1 Kuhn-Munkres algorithm
        4.2.2 Mode selection and resource allocation integration scheme
    4.3 Simulation results and analysis
    4.4 Summary of this chapter
Conclusion
References
Acknowledgements
Resume



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