Clock synchronization for wireless local area networks

Mock, Michael; Frings, R.; Nett, Edgar; Trikaliotis, Spiro

doi:10.1109/emrts.2000.854006

Cited by 40 publications

(24 citation statements)

References 7 publications

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“…There has been much other work on clock synchronization. [2] showed an approach similar to [5], but focusing more on sensor-networks and their low-power constrains as well as their multi-hop nature. For this purpose, they calculate a linear regression for the time values obtained from a time server, and they propose a scheme for synchronizing time for more than one broadcast domain.…”

Section: Related Workmentioning

confidence: 97%

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Evaluating a clock synchronization for dependable sensor networks

Trikaliotis¹,

Lukas²

2006

Proceedings 20th IEEE International Parallel &Amp; Distributed Processing Symposium

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A synchronized clock is an important prerequisite for many distributed algorithms. This clock is used to give an "occured before"' relationship, as well as for synchronizing distributed actions. There are many clock synchronization algorithms with varying precisions and assumptions on the underlying network topology. In this paper, a synchronization protocol is presented which achieves a high precision in the order of 20us to 30us in a one-hop wireless environment, and a multiple of this value for multi-hop wireless networks, such as sensor networks. The protocol works reliably even if message losses occur, which is very likely in wireless networks. For this, it utilizes redundancy in the sent time information. This protocol is implemented and evaluated on standard PC hardware running RT-LinuzxFree, and an outline of the eztension for multi-hop scenarios is given.

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Section: Related Workmentioning

confidence: 97%

“…As a result, several clock synchronization protocols for wireless sensor networks have been designed in the recent past. WVe presented a protocol in [5], [6], which is based on an idea which can be found in [1], [8]. The idea is also utilized in the clock synchronization protocol of the CAN standard [3].…”

Section: Related Workmentioning

confidence: 99%

Evaluating a clock synchronization for dependable sensor networks

Trikaliotis¹,

Lukas²

2006

Proceedings 20th IEEE International Parallel &Amp; Distributed Processing Symposium

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“…For the sake of simplicity, a linear function is used and clock correction is achieved by changing the parameters of this function after every synchronization round so that the slave's virtual clock matches the master's physical clock as closely as possible. The algorithm assumes that message reception is tight, such that a master node receives its own broadcast message at approximately the same time as the slave nodes [8]. Each synchronization frame contains the time at which the master node received the last synchronization message sent and by comparing this value with its own reception time for the same message, a slave is able to achieve synchronization with the master.…”

Section: Description Of Three Selected Algorithmsmentioning

confidence: 99%

Higher layer synchronization in an ECMA-368 Ultra Wideband network

Anyaegbu

Weir²,

Wang

2010

2010 IEEE International Conference on Ultra-Wideband

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An algorithm for implementing higher layer synchronization in ECMA-368 networks is being developed within the framework of the EUWB research and development project. In this paper, we adapt three synchronization algorithms used in wireless sensor networks to suit an Ultra Wideband (UWB) network and evaluate their performance in order to determine the best algorithm for a video streaming application scenario. We also propose some extensions to the ECMA-368 standard that would facilitate the implementation of these algorithms. For these purposes, we have simulated a UWB beacon group in OPNET. We observe that the algorithms that correct for clock drift are better suited for implementation in a UWB network.

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“…In the proposed protocol, synchronized clocks [14][15] [16] between V and U i 's home network H are assumed. In addition, the security of our authentication key is based on Diffie-Hellman problem.…”

Section: Proposed Roaming Service Authentication Protocolmentioning

confidence: 99%

Private Authentication Techniques for the Global Mobility Network

Lee

Chang

Hwang

2005

Wireless Pers Commun

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Numerous authentication approaches have been proposed recently for the global mobility network (GLOMONET), which provides mobile users with global roaming services. In these authentication schemes, the home network operators can easily obtain the authentication key and wiretap the confidentiality between the roaming user and the visited network. This investigation provides a solution of authentication techniques for GLOMONET in order to prevent this weakness from happening and presents a secure authentication protocol for roaming services. In addition, a round-efficient version of the same authentication protocol is presented. Comparing with other related approaches, the proposed authentication protocol involves fewer messages and rounds in communication.

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Clock synchronization for wireless local area networks

Cited by 40 publications

References 7 publications

Evaluating a clock synchronization for dependable sensor networks

Evaluating a clock synchronization for dependable sensor networks

Higher layer synchronization in an ECMA-368 Ultra Wideband network

Private Authentication Techniques for the Global Mobility Network

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