In wireless sensor networks, various applications involve learning one or multiple functions of the measurements observed by sensors, rather than the measurements themselves. This paper focuses on type-threshold functions, e.g., the maximum and indicator functions. Previous work studied this problem under the collocated collision network model and showed that under many probabilistic models for...

This paper presents a distributed hardware/software cosimulation environment for heterogeneous systems pro-totyping applied to an industrial application. The environment provides following features: distributed Hw/Sw cosimulation, automatic Hw/Sw interface generation, Hw elements can be described at different levels of abstraction and generic/specific Sw debuggers can be used. Starting from a b...

An iterative learning control method for a single-link flexible manipulator is proposed to achieve precise tracking control and end-point vibration suppression of the system. The learning is done in a feedback configuration with hybrid control and the learning law updates the feedforward input from the error of the previous trial. The dynamic model of the flexible manipulator is derived using t...

It is challenging to assess the vulnerability of a cyber-physical power system to data attacks. In order to support vulnerability assessment, with the exception of analytic methods, a suitable platform for security tests needs to be developed. In this paper we analyze the cyber security of energy management system (EMS) against data attacks. First we extend our analytic framework that character...

Speech signals transmitted over telephone network often suffer from interference due to ambient noise and channel distortion. In this paper, a novel frame-dependent fuzzy channel compensation (FD-FCC) method employing two-stage bias subtraction is proposed to minimize the channel effect. First, through maximum likelihood (ML) estimation over the set of all word models, we choose the word model ...

In studies about office arrangements that have individuals working from remote locations, researchers usually hypothesize advantages for collocators and disadvantages for remote workers. However, empirical findings have not shown consistent support for the hypothesis. We suspect that there are unintended consequences of collocation, which can offset well-recognized advantages of being collocate...

In this paper, we consider the problem of scheduling real-time traffic in wireless networks under a conflict-graph interference model and single-hop traffic. The objective is to guarantee that at least certain fraction packets each link are delivered within their deadlines, which referred as delivery ratio. This has been studied before restrictive frame-based models, or greedy maximal schemes l...

As multi-processor system-on-chip (MPSoC) has become an effective solution to ever-increasing design complexity of modern embedded systems, fast and accurate HW/SW cosimulation of such system becomes more important to explore wide design space of communication architecture. Recently we have proposed the trace-driven virtual synchronization technique to boost the cosimulation speed while accurac...

Hardware/Software cosimulation is the key process to shorten the design turn around time. We have proposed a novel technique, called virtual synchronization, for fast and time accurate cosimulation that involves component simulators running concurrently and interacting with each other. In this paper, we further extend the virtual synchronization technique with OS modeling for the case where mul...

Intelligence supposes, at least, consciousness and adaptability. Consciousness simulation demands transcending the present limits of computability, by an intensive as well as extensive research effort to integrate essential physical and mathematical knowledge guided by philosophical goals. Separating the different hierarchy types reveals their comprehensive constructive importance based on stru...