无线体域网媒体接入控制关键技术研究

发布时间：2021-07-31 09:58

　　全球人口老龄化和日益攀升的慢性病发病率加剧了医疗资源短缺、医疗成本增加等社会问题,健康监护已经成为一个不可忽视的重大问题。随着信息通信技术的发展,研究人员深入探索健康监护领域中无线医疗关键技术以缓解当前的医疗现状,无线体域网（Wireless Body Area Network,WBAN）技术应运而生。WBAN是一种以人为中心,短距离、高可靠、低功耗的无线通信网络。它由一个中心节点和多个在体表、体内或者人体附近相互连接的传感器节点组成。WBAN通过这些传感器节点采集用户生理的、行为的及其它健康相关的信息,并将其传送到中心节点或者远程监护中心,联合远程医疗系统向用户提供健康生活或治疗建议。它改变了传统医疗监护系统的范式,并且不受地域和医疗设施条件的限制,可以在保证用户便捷舒适的条件下为用户提供持续的、实时的健康监测服务。目前,WBAN技术已经成为电子医疗监护领域的一种核心技术,它能够为健康监测提供创新性的解决方案,从而有效缓解由于医疗资源短缺而导致的就医难问题。然而,WBAN在健康监测中仍然存在许多技术和设计方面的挑战。首先,随着WBAN的普及应用,多WBAN共存场景会导致WBAN间相互... 

【文章来源】：西安电子科技大学陕西省 211工程院校 教育部直属院校

【文章页数】：143 页

【学位级别】：博士

【文章目录】：
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
致谢
作者简介



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