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An efficient TDMA start-up and restart synchronization approach for distributed embedded systems

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<mark>Journal publication date</mark>13/09/2004
<mark>Journal</mark>IEEE Transactions on Parallel and Distributed Systems
Issue number8
Number of pages15
Pages (from-to)725-739
Publication StatusPublished
<mark>Original language</mark>English


A desired attribute in safety-critical embedded real-time systems is a system time and event synchronization capability on which predictable communication can be established. Focusing on bus-based communication protocols, we present a novel, efficient, and low-cost start-up and restart synchronization approach for TDMA environments. This approach utilizes information about a node's message length that forms a unique sequence to achieve synchronization such that communication overhead can be avoided. We present a fault-tolerant initial synchronization protocol with a bounded start-up time. The protocol avoids start-up collisions by deterministically postponing retries after a collision. We also present a resynchronization strategy that incorporates recovering nodes into synchronization. © 2004 IEEE.