STUCKEY, JEFFREY J. Worst-Case Cell Delay in an ATM Switch using EDF Scheduling. (Under the direction of Professor George N. Rouskas and Professor Ioannis Viniotis.) Asynchronous Transfer Mode (ATM) is well-suited for carrying real-time tra c. Because real-time tra c must arrive at its destination prior to its playback instant, end-toend delay is one of its most critical QoS parameters. We focu...

This paper addresses the mean-square optimal control problem for a class of discrete-time linear systems with quasi-colored control-dependent multiplicative noise via output feedback. The under study is novel and shown to have advantage on modeling network phenomena such as random transmission delays. feedback controller designed using an state gain two observer gains, which are determined by s...

Asynchronous-parallel algorithms have the potential to vastly speed up algorithms by eliminating costly synchronization. However, our understanding of these algorithms is limited because the current convergence of asynchronous (block) coordinate descent algorithms are based on somewhat unrealistic assumptions. In particular, the age of the shared optimization variables being used to update a bl...

received discrete-time Gaussian signals. Using two different methods, possible structures for the joint maximum likelihood (ML) estimator are proposed, when the observation interval is long compared to both the delay to estimate and the correlation time of the various random processes involved. These structures generalize the cross-correlation method with prefiltering that implements the ML est...

We discuss modeling and analysis of real-time control systems subject to random time delays in the communication network. A new method for analysis of given control schemes is presented. The state of the network is modeled by a Markov chain and Lyapunov equations for the expected LQG performance are presented. An example that illustrates the results is given.

An optimal control law for networked systems with a discrete-time linear time-invariant plant and networks between sensors controller as well actuators is proposed. The are characterized by random delays dropouts of transmitted data packets. in an extended state vector; the gains can be calculated offline advance.

In this paper, fault detection of networked control systems with random delays, packet dropout and noises is studied. The filter is designed using a minimum error entropy criterion. The residual generated by the filter is then evaluated to detect faults in networked control systems. An illustrative networked control system is used to verify the effectiveness of the proposed approach.

In this paper, the cost function for a three-echelon inventory system with two warehouses is derived. Transportation times are constant and retailers face independent Poisson demand. Replenishments are one-for-one. The lead time of a retailer is determined not only by the constant transportation time but also by the random delay incurred due to the availability of stock at the warehouses. We co...