移动通信系统中网络基础设施共享技术研究

发布时间：2021-01-14 14:18

　　在过去的几十年里,全球范围内的移动通信系统经历了快速增长,为发达国家和发展中国家的未接入网络的人们的通信服务做出了巨大贡献。目前,技术变化迅速,数据流量的需求量巨大,且在短时间内,这种技术发展趋势和高数据的需求预计不会下降。为了满足上述需求,移动网络运营商（MNO）急需升级和扩展其网络基础设施以增加容量。网络基础设施的部署和维护费用非常昂贵,这要求MNO投入巨资。MNO将基础设施部署到农村地区面临很大挑战,因此大部分农村地区都没有接入移动互联网。全球约有40亿人无法上网,其中大部分来自非洲和亚洲的发展中国家。因此,所有人对接入网络的需求,呼吁移动通信系统的基础设施部署和管理采用更创新的模式。网络基础设施共享（NIS）被认为是一个非常有前景的实用的解决方案,对减少MNO的资本支出、运营支出有巨大作用,并能在适应技术变迁过程中满足快速增长的数据流量需求。为此,本研究调查了移动NIS并为发展中国家的MNO提出了多种共享策略。采用调查研究的方法从电信专家和用户终端收集到数据。用户终端根据地区被细分为三个小组。这些地区分别是达累斯萨拉姆市,莫罗戈罗镇和Matombo村。这旨在收集代表研究人群的数... 

【文章来源】：重庆大学重庆市 211工程院校 985工程院校 教育部直属院校

【文章页数】：133 页

【学位级别】：博士

【文章目录】：
中文摘要
ABSTRACT
LIST OF ACRONYMS
1 INTRODUCTION
    1.1 BACKGROUND
    1.2 STATEMENT OF THE PROBLEM
    1.3 OBJECTIVES OF THE STUDY
    1.4 SIGNIFICANCE OF THE STUDY
    1.5 GENERAL OVERVIEW OF NIS
        1.5.1 Passive Infrastructure Sharing
        1.5.2 Active NIS
        1.5.3 Drivers for network sharing
    1.6 THESIS STRUCTURE
2 LEVEL OF INFRASTRUCTURE SHARING AND NETWORK COVERAGE
    2.1 INTRODUCTION
    2.2 BACKGROUND OF TELECOM INDUSTRY IN TANZANIA
        2.2.1 Voice services penetration trends
        2.2.2 Internet services penetration trends
    2.3 RESEARCH METHODS
        2.3.1 Description of the Study Area
        2.3.2 Sampling design
        2.3.3 Data Collection Methods and Instruments
        2.3.4 Reliability and Validity
    2.4 FINDINGS PRESENTATION AND DISCUSSION
        2.4.1 Mobile network penetration and Coverage
        2.4.2 Level of mobile network infrastructure sharing
        2.4.3 Electrification of Network infrastructures
    2.5 SUMMARY
3 INFRASTRUCTURE DEPLOYMENT AND SHARING
    3.1 INTRODUCTION
    3.2 WIRELESS NETWORK VIRTUALIZATION
        3.2.1 Infrastructure Sharing in WNV
        3.2.2 Levels of Infrastructure Virtualization
        3.2.3 SDN-Based WNV Architectural Framework
        3.2.4 Benefits of WNV
    3.3 INFRASTRUCTURE DEPLOYMENT
        3.3.1 Joint Venture Infrastructure deployment
        3.3.2 Tower companies Involvement
    3.4 COOPERATIVE GAME IN NIS
        3.4.1 The core and nucleolus method
        3.4.2 The Shapley value method
        3.4.3 The SCRB method
    3.5 PROMOTING INFRASTRUCTURE SHARING
    3.6 SUMMARY
4 HYBRID POWER SYSTEMS FOR REMOTE NETWORK INFRASTRUCTURE
    4.1 BACKGROUND
    4.2 RELATED STUDIES
    4.3 SYSTEM SET-UP FOR TECHNO-ECONOMIC ANALYSIS
    4.4 SITE EVALUATION AND ANALYSIS
        4.4.1 Load Assessment
        4.4.2 Energy Resources Assessment
        4.4.3 Equipment Cost and Features for RE analysis
    4.5 ANALYSIS TOOLS AND HPS ARCHITECTURE MODELLING
    4.6 EVALUATION METRICS
    4.7 SYSTEM COMPONENTS MODELLING
        4.7.1 PV radiation energy harvesting
        4.7.2 Wind turbine energy harvesting
        4.7.3 Diesel Generator Power Production
    4.8 SIMULATION RESULTS AND DISCUSSION
        4.8.1 GHG emissions
        4.8.2 Cost system analysis
        4.8.3 Electricity production
    4.9 SUMMARY
5 CONCLUSION AND RECOMMENDATIONS
    5.1 CONCLUSION
    5.2 RECOMMENDATIONS
        5.2.1 Government intervention
        5.2.2 Stakeholders Efforts
    5.3 FURTHER RESEARCH
ACKNOWLEDGEMENT
REFERENCES
APPENDICES
    APPENDIX A: PUBLICATIONS
    APPENDIX B: QUESTIONNAIRE FOR EXPERTS
    APPENDIX C: QUESTIONNAIRE FOR USERS



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