无线传感器网络是物联网的基本组成部分。智慧城市、电网、军事等重要物联网应用领域均依赖无线传感器网络以支撑其大规模感知、协同等应用，时间同步是无线传感器网络实现统一时间基准进而支撑这些应用的基石。本书聚焦无线传感器网络时间同步，第1~2章围绕无线传感器网络时间同步的三大发展趋势——高同步精度、低能耗、低计算复杂度，介绍近期新时间同步方案；第3~5章详细阐释时间同步理论、方法、设计及实现；第6~7章讨论基于时间同步的网络安全相关技术；第8章展望无线传感器网络时间同步研究方向。本书论述的无线传感器网络时间同步技术兼具理论深度和工程实用性，有助于本领域研究人员了解和掌握时间同步的近期新技术发展，适合物联网、计算机、电子信息等领域科研人员阅读。

Chapter 1 Introduction
1.1 WSN and Its Time Synchronization
1.2 Contributions
1.3 Book Organization
Chapter 2 Review of WSN Time Synchronization
2.1 Taxonomy of WSN Time Synchronization
2.2 Development Focus of WSN Time Synchronization
Chapter 3 An Asymmetric High-Precision Time Synchronization Scheme for Low Computational Complexity
3.1 Introduction
3.2 Impact of Precision Loss on Time Synchronization
3.3 Asymmetric High-Precision Time Synchronization
3.4 Experimental Results
3.5 Summary
Chapter 4 A Beaconless Asymmetric Time Synchronization Scheme for Low Energy Consumption
4.1 Introduction
4.2 Energy-Efficient Time Synchronization Tailored for Resource-Constrained Sensor Nodes
4.3 Extension of BATS to Multi Hop WSNs
4.4 Experimental Results
4.5 Summary
Chapter 5 A Per-Hop Delay Compensation Scheme for Improving Multi-Hop Time Synchronization Performance
5.1 Introduction
5.2 Per-Hop Delay Compensation in Multi-Hop WSNs Based on Packet Relaying Gateways
5.3 Effect of Timestamping and Clock Skew Compensation on Multi-Hop Extension Based on PHDC and TT
5.4 On the Implementation of PHDC
5.5 Performance Evaluation
5.6 Summary
Chapter 6 An Optimal Message Bundling Scheme with Delay and Synchronization Constraints
6.1 Introduction
6.2 Preliminaries
6.3 ILP Model for Optimal Bundling Problem
6.4 System Design
6.5 Experimental Results
6.6 Summary
Chapter 7 NISA Detection Based on Clock Features and Radio Information for WSNs
7.1 Introduction
7.2 NISA Detection Based on Clock Features and Radio Information
7.3 Centralized NISA
7.4 Distributed NISA
7.5 Experimental Results
7.6 Comparison to Related Work
7.7 Summary
Chapter 8 Conclusions and Fut ure Work
8.1 Conclusions
8.2 Future Work
Bibliography