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Paper details
Number 1 - March 2014
Volume 24 - 2014
An optimal sliding mode congestion controller for connection-oriented communication networks with lossy links
Andrzej Bartoszewicz, Piotr Leśniewski
Abstract
A new discrete-time sliding-mode congestion controller for connection-oriented networks is proposed. Packet losses which
may occur during the transmission process are explicitly taken into account. Two control laws are presented, each obtained
by minimizing a different cost functional. The first one concentrates on the output variable, whereas in the second one the
whole state vector is considered. Weighting factors for adjusting the influence of the control signal and appropriate (state
or output) errors are incorporated in both the functionals. The asymptotic stability of the closed-loop system is proved, and
the conditions for 100% bottleneck node bandwidth utilization are derived. The performance of the proposed algorithm is
verified by computer simulations.
Keywords
optimal control, sliding-mode control, flow control, discrete-time systems