Analysis of a multiqueue model for an ISDN access interface
Performance Evaluation
ISDN and broadband ISDN with frame relay and ATM (3rd ed.)
ISDN and broadband ISDN with frame relay and ATM (3rd ed.)
Simulation of Computer Communication Systems
Simulation of Computer Communication Systems
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In the basic user/network interface of N-ISDN (ITU-T Recommendation I.430), the D-channel is shared by up to 8 terminals for signal and data packets. An analytical model is proposed to reveal the performance characteristics of the access control scheme for the D-channel. Numerical and simulation results are shown to demonstrate the performance differentiation of the terminals with different priorities. It is observed that the mean signal delay at low load may become large because of long service time for packets, and that the priority mechanism may not work properly when the loads at terminals are very asymmetric. Keywords: N-ISDN user-network interface, D channel access control scheme, queueing model, priority mechanism, performance evaluation, simulation