Distributed video coding is a new video coding paradigm aimed at shifting the computational expensive motion estimation to the decoder. Side information is generated at the decoder as a prediction of the current frame. This creates a virtual dependency channel between the source video at the encoder and the side information at the decoder. Error correcting channel codes are used to correct the ...

Marketing managers developing strategies to market products on the Internet are faced with important issues. We suggest that the use of Web advertising, virtual store-fronts and virtual communities provides innovative opportunities for marketers to communicate with consumers, understand their preferences and personalize the marketing offers at far lesser costs and far more effectively than thro...

We propose a signal representation for transmit-receive uniform linear arrays operating over arbitrary time-varying spatial multipath channels encountered in mobile communications. The signal representation decomposes the multipath channel into a nite number of virtual channels that correspond to certain delays, Doppler shifts, angles that are xed a priori and are independent of the physical ch...

Previous experimental and computational work (for review, see White et al., 2000) has suggested that channel noise, generated by the stochastic flicker of voltage-gated ion channels, can be a major contributor to electrical membrane noise in neurons. In spiny stellate neurons of the entorhinal cortex, we remove the primary source of channel noise by pharmacologically blocking the native persist...

Blind rendezvous paradigm recently expedites the approach to the control channel establishment problem in cognitive radio networks. As a result, many novel asynchronous channel hopping (CH) rendezvous schemes are proposed for realizing blind rendezvous in these years. However, how to integrate these asynchronous CH rendezvous schemes with CSMA/CA MAC has not been researched so far. In this pape...

A key to reliable communication is a fundamental understanding of the interaction between the signal space and the channel. In timeand frequency-selective MIMO (space-time) fading channels this interaction happens in time, frequency and space. In this paper we propose a four-dimensional Karhunen-Loeve-like virtual representation for space-time channels that captures the essence of such interact...

One of the great challenges in the processing of materials using Equal Channel Angular Pressing (ECAP) is the high forming forces required to produce large shear deformation in the material. Researchers show that the friction forces between the die and the sample constitute a great part of the total forming forces. Recently, ultrasonic vibrations are successfully implemented into the ECAP proce...

Several analytical models of fully adaptive routing have recently been proposed for k-ary n-cubes and hypercube networks under the uniform traffic pattern. Although, hypercube is a special case of k-ary n-cubes topology, the modeling approach for hypercube is more accurate than kary n-cubes due to its simpler structure. This paper proposes a general analytical model to predict message latency i...

In this paper, a new subspace based blind channel estimation method is proposed for OFDM systems over a time-dispersive channel. The proposed algorithm exploits the presence of virtual carriers and eliminates the cyclic prefiz; thereby leading to higher channel utilization than most previously reported cyclic prefix based estimators. A sufficient condition on the channel identifiability is deve...

BACKGROUND Advances in communication technology may affect networking pattern, thereby influencing the dynamics of sex partnership. The aim of the study is to explore the impacts of partner sourcing through internet and related channels on exposure risk to sexually transmitted infections (STI) including HIV. METHODS Using venue-based sampling, a cross-sectional questionnaire survey was conduc...