submitted to: 19th International Teletraffic Congress, 2005Performance analysis of the CSMA/CA MAC protocol in the DBORN optical MAN network architecture

Abstract: In this paper, we present a detailed performance analysis of the MAC protocol of the DBORN optical burst-mode metro network architecture. We introduce an exact analytical per-formance model for the slotted operation mode and models for the unslotted operation mode which yield good upper and lower bounds. Also, we introduce a new moment analysis approach to derive the mean waiting time of preemptive repeat identical priority queueing sys-tems. Then, we validate the analytical model by simulation and assess important architectural options regarding delay and maximum achievable network load. In order to consider realistic burst traffic characteristics, we extend the evaluation towards general arrival processes and finally towards a burst assembly module with self-similar IP traffic. 1