全球人口老齡化和日益攀升的慢性病發(fā)病率加劇了醫(yī)療資源短缺、醫(yī)療成本增加等社會問題,健康監(jiān)護(hù)已經(jīng)成為一個不可忽視的重大問題。隨著信息通信技術(shù)的發(fā)展,研究人員深入探索健康監(jiān)護(hù)領(lǐng)域中無線醫(yī)療關(guān)鍵技術(shù)以緩解當(dāng)前的醫(yī)療現(xiàn)狀,無線體域網(wǎng)（Wireless Body Area Network,WBAN）技術(shù)應(yīng)運而生。WBAN是一種以人為中心,短距離、高可靠、低功耗的無線通信網(wǎng)絡(luò)。它由一個中心節(jié)點和多個在體表、體內(nèi)或者人體附近相互連接的傳感器節(jié)點組成。WBAN通過這些傳感器節(jié)點采集用戶生理的、行為的及其它健康相關(guān)的信息,并將其傳送到中心節(jié)點或者遠(yuǎn)程監(jiān)護(hù)中心,聯(lián)合遠(yuǎn)程醫(yī)療系統(tǒng)向用戶提供健康生活或治療建議。它改變了傳統(tǒng)醫(yī)療監(jiān)護(hù)系統(tǒng)的范式,并且不受地域和醫(yī)療設(shè)施條件的限制,可以在保證用戶便捷舒適的條件下為用戶提供持續(xù)的、實時的健康監(jiān)測服務(wù)。目前,WBAN技術(shù)已經(jīng)成為電子醫(yī)療監(jiān)護(hù)領(lǐng)域的一種核心技術(shù),它能夠為健康監(jiān)測提供創(chuàng)新性的解決方案,從而有效緩解由于醫(yī)療資源短缺而導(dǎo)致的就醫(yī)難問題。然而,WBAN在健康監(jiān)測中仍然存在許多技術(shù)和設(shè)計方面的挑戰(zhàn)。首先,隨著WBAN的普及應(yīng)用,多WBAN共存場景會導(dǎo)致WBAN間相互... 

【文章來源】：西安電子科技大學(xué)陜西省 211工程院校 教育部直屬院校

【文章頁數(shù)】：143 頁

【學(xué)位級別】：博士

【文章目錄】：
ABSTRACT
摘要
List of Notations
List of Abbreviations
Chapter 1 Introduction
    1.1 Background
    1.2 Wireless Body Area Networks
        1.2.1 Technical Framework
        1.2.2 Challenges
    1.3 Research Motivations and Objectives
    1.4 Main Contributions
    1.5 Organization
Chapter 2 Literature Review and Technical Preliminaries
    2.1 Related Work
    2.2 IEEE 802.15.6
        2.2.1 Network Topology
        2.2.2 Access Classification and Division
        2.2.3 Physical Layer
        2.2.4 Traffic Classification
    2.3 Medium Access Control
        2.3.1 Random Access
        2.3.2 Scheduled Access
    2.4 Analytic Hierarchy Process
    2.5 Directional Antenna Technology
        2.5.1 Directional Antenna Types
        2.5.2 Deafness and Hidden Terminal Problems
    2.6 Summary
Chapter 3 Dynamic Interference Analysis of Coexisting WBANs with Prioritized Traffic
    3.1 Introduction
    3.2 System Model
    3.3 Dynamic Interference of Coexisting Mobile WBANs
    3.4 Health Critical Index
    3.5 Theoretical Analysis
        3.5.1 Superframe Structure
        3.5.2 Markov Chain Model for A UP_k Node with Interference
        3.5.3 Normalized Throughput and Average Access Delay
    3.6 Performance evaluation
        3.6.1 Normalized Throughput
        3.6.2 Average Access Delay
    3.7 Experimental Results
    3.8 Summaryc
Chapter 4 A Hybrid Directional MAC Protocol for WBANs
    4.1 Introduction
    4.2 LEDA MAC Protocol
        4.2.1 System Model
        4.2.2 Superframe of LEDA MAC Protocol
        4.2.3 Transmission Progress Description
        4.2.4 Deafness and Hidden Terminal Problems Avoidance
    4.3 Theoretical Analysis
        4.3.1 Throughput
        4.3.2 Delay
        4.3.3 Energy Consumption
        4.3.4 Network Lifetime
    4.4 Simulation Results
    4.5 Summary
Chapter 5 A Token-based Dynamic Two-round Reservation MAC for Health Monitoring
    5.1 Introduction
    5.2 System Model
    5.3 Token-based Two-round Reservation MAC (TTR MAC)
        5.3.1 Superframe Structure
        5.3.2 First Round Reservation
        5.3.3 Second Round Reservation
        5.3.4 Appropriate Number of Allocation Slots
    5.4 Bit Sequence Mechanism for m-periodic Data
        5.4.1 Sequence Function
        5.4.2 Bit Sequence Scheduled Algorithm
    5.5 Performance Evaluation
        5.5.1 Simulation Parameters
        5.5.2 Energy Consumption
        5.5.3 Energy Efficiency
        5.5.4 Lifetime
    5.6 Summary
Chapter 6 Conclusion and Future Work
    6.1 Research Conclusion
    6.2 Limitations of Current Work
    6.3 Future Work
Bibliography
致謝
作者簡介



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