Commercial advertising is the main source of income for TV channels and allocation of advertising time slots for maximizing broadcasting revenues is the major problem faced by TV channel planners. In this paper, the problem of scheduling advertisements on prime-time of a TV channel is considered. The problem is formulated as a multi-unit combinatorial auction based mathematical model. This is a...

Physical-layer network coding (PLNC) has the ability to drastically improve the throughput of multi-source wireless communication systems. In this paper, we focus on the problem of channel tracking in a Decode-and-Forward (DF) OFDM PLNC system. We proposed a Kalman Filter-based algorithm for tracking the frequency/time fading channel in this system. Tracking of the channel is performed in the t...

This paper presents a new approach for the channel capacity calculation of a multi-relay multi-hop communication system. For the channel model based on Markov chains theory, the exact formula for the channel capacity, which is expressed as a function of packet error rate and number of relays, is derived. The expression of the overall packet error rate is derived in its closed form. The presente...

Extensive integration of online and offline channels is often considered the preferable strategy for multi channel retailing. However, empirical findings contradict this assumption and show that retailers choose divergent multi channel strategies. In this paper, we present a model of strategic channel alignment and define four alignment perspectives that can help to reconstruct and interpret de...

In mobile ad-hoc network, some multi -channel MAC protocols utilize multiple channels to reduce the collision of wireless transmission and thus get high throughput. These multi channel MAC protocols aim at improving the performance of unicast communication, and multicast data are generally transmitted through broadcast. So multicast can’t benefit from the multi -channel technique. This paper pr...

Recently, various schemes were proposed for parametric coding of stereo and multi-channel audio signals. Binaural Cue Coding (BCC) is such a technique. It represents multi-channel audio signals as a single downmixed channel plus a small amount of side information. BCC can be applied to mono and stereo backwards compatible coding of multi-channel audio signals. In this paper, we propose a genera...

We propose a multi-channel speech dereverberation approach based on cross-channel cancellation and spectrogram decomposition. The reverberation is modeled as a convolution operation in the spectrogram magnitude domain. Using the Itakura divergence (I-divergence), we decompose reverberant spectrogram into clean spectrogram convolved with a deconvolution filter. The speech spectrogram is constrai...