發(fā)布時(shí)間：2024-05-31 03:08

　　自第一代推出無(wú)線移動(dòng)通信以來(lái),已經(jīng)過(guò)去了幾十年,特別是主要由語(yǔ)音系統(tǒng)組成。在最近的幾年里,世界目睹了無(wú)線通信向后代發(fā)展的連續(xù)但穩(wěn)定的發(fā)展。實(shí)現(xiàn)各種數(shù)字調(diào)制,有效的頻率復(fù)用,基于分組的互聯(lián)網(wǎng)的優(yōu)勢(shì)以及物理層技術(shù)的連續(xù)進(jìn)步,例如,正交頻分復(fù)用(OFDMA),Wideband Code Division Multiple Access(W-CDMA),多輸入多輸出(MIMO),混合式自動(dòng)重送請(qǐng)求(HARQ)投資于技術(shù)發(fā)展的成功。雖然智能的普及正逐漸增長(zhǎng),但每個(gè)基于IP的4G網(wǎng)絡(luò)設(shè)備都成為日常生活的一部分。因此,面向用戶的復(fù)雜應(yīng)用程序,如視頻交流,在線游戲,醫(yī)療保健服務(wù),提供了廣泛的業(yè)務(wù)范圍,以增加收入。事實(shí)上,沒(méi)有人會(huì)對(duì)各種智能設(shè)備感到驚訝,例如智能茶壺。此外,人們發(fā)現(xiàn)這些工具非常方便和有用。然而,為了確保能夠提供適當(dāng)質(zhì)量的技術(shù)實(shí)現(xiàn),下一代無(wú)線通信需要提供顯著高的速率(顯然為Gbps),極低的延遲,基站(BS)容量的極大擴(kuò)大。此外,5G將在比較現(xiàn)有4G網(wǎng)絡(luò)的感知服務(wù)質(zhì)量(QoS)方面進(jìn)行相當(dāng)大的改進(jìn)。上面提到的智能設(shè)備的傳播,以及各種多媒體應(yīng)用的注入,以及無(wú)線數(shù)據(jù)(主要是多媒體)的幾乎指數(shù)上...

【文章頁(yè)數(shù)】：89 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
Chapter1.Introduction
    1.1 The Source of a Topic and Research Purpose
    1.2 Research Background
        1.2.1 Existing Mobile Networks– Issues and Challenges
        1.2.2 Vision and Motivation of5G
    1.3 Research Significance
    1.4 Analysis of Literature Review
        1.4.1 International Research Status
        1.4.2 Analysis of literature review
    1.5 Content and Methodology of the Research
Chapter2.Comprehensive Survey of5G Wireless Networks
    2.1 5G Architecture:A Pattern Fuse
        2.1.1 Radio Network Evolution
        2.1.2 Advanced Air Interface
        2.1.3 Next Generation Smart Antenna
        2.1.4 Swiftness and Resilience– SDN
        2.1.5 Cloud RAN
        2.1.6 Heterogeneous Networks(HetNets)
    2.2 Physical Layer Design Issues
        2.2.1 Mm-wave Wireless Channel
        2.2.2 Adaptive Beamforming
        2.2.3 Sectorized Antenna
        2.2.4 Massive MIMO System
        2.2.5 Full Duplex Radio Technology
    2.3 MAC Layer
        2.3.1 Spatial Beam Patterns
        2.3.2 Directional MAC protocols
        2.3.3 Advanced Multiple Access Techniques
        2.3.4 Disjunctive Methodologies
    2.4 Quality of Service(QoS)improvements
        2.4.1 Quality of Service(QoS)improvements
        2.4.2 Quality of User Experience(QoE)
        2.4.3 Quality Management with SON
    2.5 5G Viable Future
        2.5.1 Energy Conscious BS
        2.5.2 Energy Saving Backhaul
        2.5.3 Cost and Energy Successful Network
        2.5.4 C-RAN to Ameliorate Expenses and Energy Outflow
    2.6 Overview of Handover Process
    2.7 Summary
Chapter3.Handover Performance Evaluation in 5G Heterogeneous Networks
    3.1 Problem Formulation
    3.2 Analytical Model
    3.3 Simulation Results
    3.4 Summary
Chapter4.Authentication Handover Mechanism
    4.1 SDN-Enabled5G Authentication Handover
        4.1.1 SDN for5G Heterogeneous Networks
        4.1.2 SDN-Enabled5G Handover Authentication
        4.1.3 Assumptions and Design Goals
        4.1.4 Authentication Handover Procedure Design(Scheme1)
        4.1.5 Privacy Protection Mechanism(Scheme2)
    4.2 Simulation Settings and Parameters
        4.2.1 Simulation Settings and Parameters
        4.2.2 Results Analysis
    4.3 Summary
Conclusion
References
Acknowledgement
Resume



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