Continuous clock synchronization in wireless real-time applications
- 1 January 2000
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Continuous clock synchronization avoids unpredictable instantaneous corrections of clock values. This is usually achieved by spreading the clock correction over the synchronization interval. In the context of wireless real time applications, a protocol achieving continuous clock synchronization must tolerate message losses and should have a low overhead in terms of the number of messages. The paper presents a clock synchronization protocol for continuous clock synchronization in wireless real time applications. It extends the IEEE 802.11 standard for wireless local area networks. It provides continuous clock synchronization, improves the precision by exploiting the tightness of the communication medium, and tolerates message losses. Continuous clock synchronization is achieved with an advanced algorithm adjusting the clock rates. We present the design of the protocol, its mathematical analysis, and measurements of a driver level implementation of the protocol on Windows NT.Keywords
This publication has 9 references indexed in Scilit:
- A posteriori agreement for fault-tolerant clock synchronization on broadcast networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Clock synchronization for wireless local area networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Continuous clock amortization need not affect the precision of a clock synchronization algorithmPublished by Association for Computing Machinery (ACM) ,1990
- Probabilistic clock synchronizationDistributed Computing, 1989
- A new fault-tolerant algorithm for clock synchronizationInformation and Computation, 1988
- Clock Synchronization in Distributed Real-Time SystemsIEEE Transactions on Computers, 1987
- Optimal clock synchronizationJournal of the ACM, 1987
- Synchronizing clocks in the presence of faultsJournal of the ACM, 1985
- An upper and lower bound for clock synchronizationInformation and Control, 1984