在過去的幾十年里,全球范圍內的移動通信系統(tǒng)經歷了快速增長,為發(fā)達國家和發(fā)展中國家的未接入網絡的人們的通信服務做出了巨大貢獻。目前,技術變化迅速,數(shù)據(jù)流量的需求量巨大,且在短時間內,這種技術發(fā)展趨勢和高數(shù)據(jù)的需求預計不會下降。為了滿足上述需求,移動網絡運營商（MNO）急需升級和擴展其網絡基礎設施以增加容量。網絡基礎設施的部署和維護費用非常昂貴,這要求MNO投入巨資。MNO將基礎設施部署到農村地區(qū)面臨很大挑戰(zhàn),因此大部分農村地區(qū)都沒有接入移動互聯(lián)網。全球約有40億人無法上網,其中大部分來自非洲和亞洲的發(fā)展中國家。因此,所有人對接入網絡的需求,呼吁移動通信系統(tǒng)的基礎設施部署和管理采用更創(chuàng)新的模式。網絡基礎設施共享（NIS）被認為是一個非常有前景的實用的解決方案,對減少MNO的資本支出、運營支出有巨大作用,并能在適應技術變遷過程中滿足快速增長的數(shù)據(jù)流量需求。為此,本研究調查了移動NIS并為發(fā)展中國家的MNO提出了多種共享策略。采用調查研究的方法從電信專家和用戶終端收集到數(shù)據(jù)。用戶終端根據(jù)地區(qū)被細分為三個小組。這些地區(qū)分別是達累斯薩拉姆市,莫羅戈羅鎮(zhèn)和Matombo村。這旨在收集代表研究人群的數(shù)... 

【文章來源】：重慶大學重慶市 211工程院校 985工程院校 教育部直屬院校

【文章頁數(shù)】：133 頁

【學位級別】：博士

【文章目錄】：
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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