ERROR CONTROL STRATEGIES FOR CUT-THROUGH SWITCHING NETWORK

Error control strategies for cut-through switching networks are studied. It seems unnecessary to have link control functions at every node in the network because of the wide deployment of an optical transmission system which has qualities of high speed and low bit error rate. Error control performed only at the destination node (ECDN) is proposed. It will compare with error control performed at every node (ECEN) from the viewpoint of transfer delay. It is shown through numerical example that the ECDN performs better than the ECEN if the increment of traffic intensity caused by the error control functions performed at every node is significant. A simulation is also provided to support the validity of the analysis. © 1990, The Institution of Electrical Engineers. All rights reserved.