A posteriori agreement for fault-tolerant clock synchronization on broadcast networks

The authors present a clock synchronization algorithm, a posteriori agreement, based on a new variant of the well-known convergence nonaveraging technique. Exploiting an obvious characteristic of broadcast networks, largely reduces the effect of message delivery delay variance. In consequence, the precision achieved by the algorithm is drastically improved. Accuracy preservation is near to optimal. The solution does not require the use of dedicated hardware.<>