[go: up one dir, main page]

Wang et al., 2017 - Google Patents

Estimation of frequency offset for time synchronization with immediate clock adjustment in multihop wireless sensor networks

Wang et al., 2017

View PDF
Document ID
18142229120900709021
Author
Wang H
Shao L
Li M
Wang P
Publication year
Publication venue
IEEE Internet of Things Journal

External Links

Snippet

The clock synchronization problem for wireless sensor networks (WSNs) is inherently related to parameter estimation. Nowadays, extensive studies on time synchronization have been conducted by adopting statistical signal processing methods. However, most …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0676—Mutual
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W52/00—Power Management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W56/00—Synchronization arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W56/00—Synchronization arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organizing networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATIONS NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update

Similar Documents

Publication Publication Date Title
Wang et al. Estimation of clock skew for time synchronization based on two-way message exchange mechanism in industrial wireless sensor networks
Wang et al. Estimation of frequency offset for time synchronization with immediate clock adjustment in multihop wireless sensor networks
Akhlaq et al. RTSP: An accurate and energy-efficient protocol for clock synchronization in WSNs
Gong et al. CESP: A low-power high-accuracy time synchronization protocol
Sahota et al. A wireless sensor network for precision agriculture and its performance
CN102118849A (en) Time synchronization method applicable to wireless sensor network
Wang et al. Maximum likelihood estimation of clock skew in wireless sensor networks with periodical clock correction under exponential delays
Akhlaq et al. The recursive time synchronization protocol for wireless sensor networks
Kim et al. Cluster-based hierarchical time synchronization for multi-hop wireless sensor networks
So et al. MTSF: A timing synchronization protocol to support synchronous operations in multihop wireless networks
Apicharttrisorn et al. Energy-efficient gradient time synchronization for wireless sensor networks
Rahamatkar et al. A reference based, tree structured time synchronization approach and its analysis in WSN
Pinho et al. A robust gradient clock synchronization algorithm for wireless sensor networks
Li et al. An improved hybrid time synchronization approach in wireless sensor networks for smart grid application
Swain et al. An energy efficient and fault-tolerant clock synchronization protocol for wireless sensor networks
Wang et al. A global clock skew estimation scheme for hierarchical wireless sensor networks
Fang et al. ELOTS: Energy-efficient local optimization time synchronization algorithm for WirelessHART networks
Zhang et al. An Asynchronous Clock Offset and Skew Estimation for Wireless Sensor Networks
Venugopal et al. DQTSM: distributed Qos in time synchronized MAC protocol for WSNs
Fontanelli et al. Master-less time synchronization for wireless sensor networks with generic topology
Wang et al. Extensible time synchronisation protocol for wireless sensor networks
Khan et al. Issues towards Efficient Time Synchronization in Wireless Sensor Networks
Shang et al. A low overhead multi-hop time-sync protocol for wireless sensor networks
Rathore et al. Virtual clock rate based time synchronization for wireless sensor networks
Bae et al. Time synchronization in wireless sensor networks