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Error Control for Multicasting in Satellite and Hybrid Communication Networks
(2001)
A problem inherent in ARQ multicasting over a broadcast channel is thata retransmission typically benefits only a minority of destinationswhile all others wait unproductively. This results in poorthroughput to each receiving ...
Control of Smart Actuators: A Viscosity Solutions Approach
(2001)
Hysteresis in smart materials hinders their wider applicability in actuators. In this report we investigate control of smart actuators through the example of controlling a commercially available magnetostrictive actuator. ...
Stabilization of LTI Systems with Communication Constraints
(2001)
This work is aimed at exploring the interaction of communication andcontrol in systems whose sensors and actuators are distributed across ashared network. Examples of such systems include groups of autonomousvehicles, MEMS ...
Tethered Satellite System Stability.
(1989)
Issues of stability of the Tethered Satellite System (TSS) during station-keeping, deployment and retrieval are considered. The basic nonlinear equations of motion of the TSS are derived using the system Lagrangian. Using ...
Optimality and Constrained Derivatives in Two-Level Design Optimization.
(1989)
The objective of this paper is twofold. First, an optimality test is presented to show that the optimality conditions for a two- level design optimization problem before and after its decomposition are the same. Second, ...
Using Direct Sequence Spread Spectrum to Determine the Responsiveness of a TCP Aggregate to Packet Drops
(2003)
In this paper we introduce a test through which the responsiveness of a TCP aggregate can be measured. The first introduced test is based on dropping a few packets from the aggregate and measuring the resulting rate decrease ...
The Design of a Three-Degrees-of-Freedom Walking Machine.
(1989)
The walking machine presented in this paper consists of six walking legs arranged in a triangular configuration. Each leg may have two modes of operation: an elliptical mode for walking on a flat plane and a circular mode ...
Throughput and Packet Error Probability of Cellular FrequencyHopped Spread-Spectrum Radio Networks.
(1988)
We characterize multiple-access interference for cellular mobile networks, in which users are assumed to be Poisson-distributed in the plane and to employ frequencyhopped spreadspectrum signaling with a transmitter-oriented ...
Robust Control of Processes with Hard Constraints.
(1989)
A significant number of Model Predictive Control algorithms solve on-line an appropriate optimization problem and do so at every sampling point. The major attraction of such algorithms, like the Quadratic Dynamic Matrix ...
Tactile Sensing and Inverse Problems.
(1987)
The goal of this paper is to study how a surface force profile may be estimated from the information on strain or stress distribution detected by tactile sensors. This problem is referred to as the inverse problem since ...