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Environment-aware clock skew estimation and synchronization for wireless sensor networks

Zhe Yang, Lin Cai, Yu Liu, Jianping Pan
2012 2012 Proceedings IEEE INFOCOM  
It is particularly crucial and challenging in wireless sensor networks (WSNs), because WSN environments are dynamic and unpredictable.  ...  Clock synchronization is a fundamental requirement for network systems.  ...  INTRODUCTION Low-cost, low-power and miniaturized sensor nodes can construct wireless sensor networks (WSNs) supporting many applications, such as smart grid, environment monitoring, and wild animal tracking  ... 
doi:10.1109/infcom.2012.6195457 dblp:conf/infocom/YangCLP12 fatcat:j7sptn2j4fh7jm2hqe3qdiyevq

Synchronous Rendezvous Based on Cluster in Low-Duty-Cycle Wireless Sensor Network

Shuhong Cheng, Wenke Zhang
2016 Cybernetics and Information Technologies  
This paper presents SRBC, a new design for synchronous rendezvous in low-duty-cycle Wireless Sensor Network (WSN).The main idea of SRBC is utilizing the cluster, which includes a part of the sensor nodes  ...  In different clusters, the border nodes exchange the relative clock drift as well as the skew to improve the performance during the synchronous rendezvous.  ...  This paper focuses on improving the performance of synchronous rendezvous in the low-duty-cycle wireless sensor network with the existence of relative clock skew in each node.  ... 
doi:10.1515/cait-2016-0055 fatcat:pdy3pmvuurhcxjad62bdq4aza4

Time Synchronization in Wireless Sensor Network based on Level Discovery Phase

Deeksha Verma, Arun Kumar Tripathi
2014 International Journal of Computer Applications  
Time synchronization help to find the computer clock difference and real time difference of transmission of message in wireless sensor network.  ...  Time Synchronization aims towards synchronizing the local time for some or all nodes in the network is a necessity for many applications.  ...  The simple estimate for is proposed as: = (8) The original form of TPSN does not estimate the clock skew; therefore frequent application of TPSN is needed to keep the clock offset between two nodes.  ... 
doi:10.5120/18236-9238 fatcat:4bqpblvgnfcpdcukyahbecesma

Voltage-Aware Time Synchronization for Wireless Sensor Networks

Meng Jin, Dingyi Fang, Xiaojiang Chen, Zhe Yang, Chen Liu, Xiaoyan Yin
2014 International Journal of Distributed Sensor Networks  
The low-cost crystal oscillators in wireless sensor networks are prone to be affected by their working conditions such as voltage, temperature, and humidity.  ...  We propose a novel voltage-aware time synchronization (VATS) scheme that is inspired by the fact that the clock skew is highly correlated to voltage supplies.  ...  Conclusion and Further Discussion In this paper, we have proposed a novel voltage-aware time synchronization (VATS) scheme for wireless sensor networks.  ... 
doi:10.1155/2014/285265 fatcat:pgcvunkdgzgd5efw7ed3yqkqyu

A Compensated Multi-anchors TOF-based Localization Algorithm for Asynchronous Wireless Sensor Networks

Tan Wang, Hong Ding, Hui Xiong, linhua zheng
2019 IEEE Access  
Tag localization for asynchronous wireless sensor networks requires the development of a scheme for clock synchronization.  ...  Joint clock synchronization and a tag localization algorithm that implements a multi-anchor compensated timeof-flight (TOF) to the asynchronous wireless sensor network is a possible and viable solution  ...  Clock synchronization is the most challenging issue for TOF and TDOA source localization algorithms used in asynchronous wireless sensor networks; this is because many of these algorithms are time-based  ... 
doi:10.1109/access.2019.2917505 fatcat:lrplf3echvek3jcznzesu4bkhm

Energy-Efficient Time Synchronization in Wireless Sensor Networks via Temperature-Aware Compensation

Miao Xu, Wenyuan Xu, Tingrui Han, Zhiyun Lin
2016 ACM transactions on sensor networks  
Time synchronization is critical for wireless sensor networks (WSNs) because data fusion and duty cycling schemes all rely on synchronized schedules.  ...  In this article, we present TACO, a synchronization scheme for WSNs with intermittent wireless channels and volatile environmental temperatures.  ...  INTRODUCTION Time synchronization is critical for wireless sensor networks (WSNs) because numerous WSN applications and protocols rely on it.  ... 
doi:10.1145/2876508 fatcat:mmdfrwjhyvgxdaik7i722c45t4

Toward clock skew based wireless sensor node services

Md. Borhan Uddin, Claude Castelluccia
2010 Proceedings of the 5th International ICST Conference on Wireless Internet  
Furthermore, the clock skew of a node can easily be monitored, even via a multi-hop Wireless Sensor Network (WSN).  ...  First, we experimentally validate that MICAz and TelosB sensor motes have different and unique clock skews.  ...  So far so little has been known about clock skew on wireless sensor nodes and effect of temperature on the clock skew of sensor nodes.  ... 
doi:10.4108/icst.wicon2010.8503 dblp:conf/wicon/UddinC10 fatcat:kn5bcsbczvav7jmcxoltnzk3ba

Time Synchronization for Wireless Sensor Networks Using Adaptive Linear Prediction

Yulong Xing, Yongrui Chen, Weidong Yi, Chenghua Duan
2015 International Journal of Distributed Sensor Networks  
Time synchronization is a crucial component in wireless sensor networks (WSN), especially for location-aware applications.  ...  However, these models may not be able to accurately describe the synchronization errors due to the uncertainties in clock drift and message delivery delay in synchronization.  ...  Introduction Time synchronization is one of the key middle-ware components in wireless sensor networks (WSN) [1] .  ... 
doi:10.1155/2015/917042 fatcat:lo4nsnfgtzhqzp3ollcf5a2abu

Energy Efficient Cross Layer Time Synchronization in Cognitive Radio Networks [article]

S.M. Usman Hashmi, Muntazir Hussain, S.M. Nashit Arshad, Kashif Inayat, Seong Oun Hwang
2020 arXiv   pre-print
The proposed symbol timing recovery method already estimates the skew of hardware clock at the physical layer and use it for skew correction of application layer clock of each node.  ...  Each Cognitive Radio (CR) node has to be environment aware and self adaptive and must have the ability to switch between multiple modulation schemes and frequencies.  ...  Many algorithms are proposed for wireless networks e.g, Reference Broadcast Synchronization (RBS), Timing-sync Protocol for Sensor Network (TPSN), Time-Diffusion Protocol (TDP) and Flooding Time Synchronization  ... 
arXiv:2007.03841v1 fatcat:kxpai6u3kbcy7irsa2kkinysue

Homomorphic Filtering for Improving Time Synchronization in Wireless Networks

José Castillo-Secilla, José Palomares, Fernando León, Joaquín Olivares
2017 Sensors  
Wireless sensor networks are used to sample the environment in a distributed way.  ...  : the clock skew due to the variations between the cut of the crystal of each oscillator and the clock skew due to the different temperatures affecting the nodes.  ...  The authors wish to thank Luis Medina Valdés, Telecommunications Engineer at the the Computer Technology Department at University of Alicante, for his great support in this work.  ... 
doi:10.3390/s17040909 pmid:28425955 pmcid:PMC5426833 fatcat:xl2nfmjzm5b7fcwfttw7sghysq

OTSA: Optimized Time Synchronization Approach for Delay-based Energy Efficient Routing in WSN

K. Nagarathna, Jayashree D
2017 International Journal of Advanced Computer Science and Applications  
Time Synchronization is one of the problems and still ignored problem in area of wireless sensor network (WSN).  ...  The prime goal of this technique is to jointly address energy problems, time synchronization, and routing in wireless sensor network.  ...  designed for distributed and large scale wireless sensor network.  ... 
doi:10.14569/ijacsa.2017.080446 fatcat:s5pd2wynx5awtglueo7jq3jata

Novel MAC Protocol and Middleware Designs for Wearable Sensor-Based Systems for Health Monitoring

Kyeong Hur, Won-Sung Sohn, Jae-Kyung Kim, YangSun Lee
2013 International Journal of Distributed Sensor Networks  
We propose a middleware platform built on wireless USB (WUSB) over wireless body area networks (WBAN) hierarchical protocol for wearable health-monitoring systems (WHMS).  ...  Also, it has been promoting the standardization and adaptation of UWB for high rate-wireless personal area network (HR-WPAN) that enables the multimedia and highspeed data communication [4, 5] .  ...  However, the peculiar constraints of sensors and adhoc network topologies of wireless sensor networks (WSNs) impose specific requirements on protocol design of time synchronization for WSN applications  ... 
doi:10.1155/2013/404168 fatcat:t2vaaeiyk5emjpzfolb7jtthd4

Adaptive Source Time Synchronization for Low-Duty-Cycle Wireless Sensor Networks

Tian Le
2015 International Journal of Future Generation Communication and Networking  
Time synchronization is critical for most distributed systems, especially for low-dutycycle Wireless Sensor Networks(WSNs).  ...  To improve the synchronization accuracy, all nodes estimate their time drifts relative to their neighbors using Maximum Likelihood Estimation, and get be synchronized to a common clock or their heads based  ...  Acknowledgements We would like to thank for the support by Beijing Municipal Commission of Education under grant number KM201310016002.  ... 
doi:10.14257/ijfgcn.2015.8.4.6 fatcat:thw2t3crujg7ngrmrfbvfmsqle

Adaptive Source Time Synchronization for Low-Duty-Cycle Wireless Sensor Networks

Tian Le
2015 International Journal of Future Generation Communication and Networking  
Time synchronization is critical for most distributed systems, especially for low-dutycycle Wireless Sensor Networks(WSNs).  ...  To improve the synchronization accuracy, all nodes estimate their time drifts relative to their neighbors using Maximum Likelihood Estimation, and get be synchronized to a common clock or their heads based  ...  Acknowledgements We would like to thank for the support by Beijing Municipal Commission of Education under grant number KM201310016002.  ... 
doi:10.14257/ijfgcn.2015.8.4.06 fatcat:h3mdaptljfcwlodalzv2czeeke

Synchronized Communication in Low Power WBAN

Nathirulla Sheriff, Naveed Nawaz
2012 International Journal of Computer Applications  
Wireless Body Area Network (WBAN) requires efficient and innovative solutions for synchronized communication and to meet the energy consumption requirements for independent sensor nodes.  ...  The time synchronization methods implemented provided good time synchronization for ANT low power wireless sensor network.  ...  The wireless nature of the network and the usage of wide variety of sensors in WBAN provide an environment to develop many new, practical and innovative applications to improve the health care.  ... 
doi:10.5120/4591-6545 fatcat:4zstn477qvgplfl47rtf2agq3u
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