نتایج جستجو برای: information channel

تعداد نتایج: 1346545  

H. Ghanei Yakhdan, J. Chitizadeh, M. Khademi,

The performance of video transmission over wireless channels is limited by the channel noise. Thus many error resilience tools have been incorporated into the MPEG-4 video compression method. In addition to these tools, the unequal error protection (UEP) technique has been proposed to protect the different parts in an MPEG-4 video packet with different channel coding rates based on the rate...

Journal: :Journal of Communications and Networks 2023

Deep learning (DL), a branch of artificial intelligence (AI) techniques, has shown great promise in various disciplines such as image classification and segmentation, speech recognition, language translation, among others. This remarkable success DL stimulated increasing interest applying this paradigm to wireless channel estimation recent years. Since principles are inductive nature distinct f...

Hajar Kafshian Ahar Mostafa Setak Saeed Alaei

This paper proposes a new motivation for information sharing in a decentralized channel consisting of a single manufacturer and two competing retailers. The manufacturer provides a common product to the retailers at the same wholesale price. Both retailers add their own values to the product and distribute it to consumers. Factors such as retail prices, values added to the product, and local ad...

Journal: :journal of communication engineering 0
sayed ali khodam hoseini shahed university s. akhlaghi

this paper concerns the transmission of two independent gaussian sources over a two-user decentralized interference channel, assuming that the transmitters are unaware of the instantaneous csis. the availability of the channel state information at receivers (csir) is considered in two scenarios of perfect and imperfect csir. in the imperfect csir case, we consider a more practical assumption of...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1390

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

2004
Ninoslav Marina

In this paper we determine bounds of the capacity region of a two-user multiple-access channel with Rayleigh fading when neither the transmitters nor the receiver has channel state information (CSI). We assume that the fading coefficients as well as the additive noise are zero-mean complex Gaussian and there is an average power constraint at the channel input for both senders. Results that we g...

Journal: :Entropy 2013
Bin Dai A. J. Han Vinck Yuan Luo Xiaohu Tang

In this paper, we investigate the model of wiretap channel with action-dependent channel state information. Given the message to be communicated, the transmitter chooses an action sequence that affects the formation of the channel states, and then generates the channel input sequence based on the state sequence and the message. The main channel and the wiretap channel are two discrete memoryles...

Journal: :مدیریت فرهنگ سازمانی 0
شهریار محسنین دانشجوی دکتری، پردیس فارابی دانشگاه تهران، ایران محمدرحیم اسفیدانی استادیار، دانشکدة مدیریت، دانشگاه تهران، ایران حمیدرضا حسن زاده کریم آباد استادیار، پردیس فارابی دانشگاه تهران، ایران حسین خنیفر استاد، پردیس فارابی دانشگاه تهران، ایران

one of the most important behavioral aspects in relationship among the main members of marketing channel is the issue of power and dependence that here we have looked through the source of power and countervailing power and we have considered reputation independence, sale and profits and marketing role dependence. in this research relationship between the two main marketing channel members in h...

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