In our daily life, we mostly perceive an event by more than one sensory modality (e.g., vision, audition, touch). Therefore multimodal integration and interaction play an important role when we use objects in our environment, e.g. for object or event recognition. Burdea and Coiffet define the virtual environment as a simulation in which computer graphics is used to create a realistic looking in...

In OFDM transmission over an FIR channel, an accepted method for combating the resultant IS1 is via addition of a cyclic prefix whose length exceeds the the FIR channel duration, to each transmitted data block. This converts the time-domain linear convolution of the FIR channel to cyclic convolution, or effectively, to a multiplicative channel distortion in the frequency domain. The (frequency-...

although there are many potential benefits associated with the use of virtual product development teams, exploiting these benefits requires an appropriate management. managing virtual product development team is a critical issue as many of these teams fail to accomplish their goals. review of previous literature shows that body of knowledge in managing virtual product development teams is fragm...

This paper presents an asynchronous on-chip network router with Quality-of-Service (QoS) support. The router uses a virtual channel architecture with a priority-based scheduler to differentiate between multiple connections with various QoS requirements sharing the same physical channel. A gatelevel prototype of the router has been built and its functionality and performance is evaluated. The si...

The physical layer is the lowest layer in the OSI network hierarchy. The services provided by this layer include digital-to-analogue conversion, modulation, demodulation, and analogue-to-digital conversion. From a vantage point higher up in the OSI hierarchy, the physical layer provides a virtual bit pipe for the transmission of information. Imperfections and perturbative noise in the channel, ...

In this paper, we propose a new adaptive algorithm for generalized eigen-decomposition problems which plays very important roles in signal processing for wireless communication. We apply the algorithm to solve the problem of co-channel interference cancellation in Orthogonal Frequency Division Multiplexing (OFDM) communication system with virtual carriers. Finally, the simulations are performed...

This paper discusses the effectiveness of various speculative techniques to minimize the latency of virtual channel router pipelines. The proposals are compared to each other as well as to a 4-stage (20 FO4) canonical example router. One technique reduced the router to a single stage (35 FO4), but was not flexible enough to accommodate adaptive routing algorithms. Another implementation uses tw...

The capacity of MIMO systems under ideal (i.i.d.) channel conditions has been shown to increase linearly with the number of antennas. Capacity scaling is observed in a correlated channel environment as well but the constant of scaling is shown in [7] to be less than that of the i.i.d. scaling factor. Using a channel representation motivated by physical scattering considerations, the virtual cha...

This paper presents StopWatch , a system that defends against timing-based side-channel attacks that arise from coresidency of victims and attackers in infrastructureas-a-service clouds. StopWatch triplicates each cloudresident guest virtual machine (VM) and places replicas so that the three replicas of a guest VM are coresident with nonoverlapping sets of (replicas of) other VMs. StopWatch use...

Over last two decades, side and covert channel research has shown variety of ways of exfiltrating information for a computer system. Processor microarchitectural side and covert channel attacks have emerged as some of the most clever attacks, and ones which are difficult to deal with, without impacting system performance. Unlike electromagnetic or power-based channels, microarchitectural side a...