Evaluation of Error Corrections and Flow Controls in ATM Networks

概要

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The objective of this research is to clarify the peIformance of the various flow control and error correction algorithms, on wide area high speed network (e.g. ATM), on the goodput and latency point of view in terms of propagation delay (noted Δ). We concentrate our study on the transport protocol layer, where dynamic window control or XTP are implemented. Either retransmission by Go-Back-N or FEC(Forward Error Correction) corrects erroneous data transfer. We show by simulations that TCP (window control+Go-Back-N) doesn't yield sufficient performance. First, we describe the parameters of the network model. Second, we compare the error correction methods when using the window control and show that FEC provides very good results. We finish by a comparison of flow controls and show that XTP using FEC code yields good performance regardless of Δ.
1994-09-26