LIMITS OF PERFORMANCE OF ADAPTIVE VARIABLE-WINDOW CSMA

The paper addresses the limits of performance of adaptive variable-window CSMA random access protocol with collision avoidance. A unified method of traffic description based on scaling coefficients, integrating various addressing and message service types, is proposed. Furthermore, the fundamental tradeoff of the adaptive variable-window CSMA protocol operation is highlighted. In particular, it is shown that the maximization of the channel bandwidth utilization is obtained at the cost of minimization of the fraction of bandwidth devoted to a transmission of messages carrying application data. Copyright © 2007 IFAC