نتایج جستجو برای: internet and broadcast channels

تعداد نتایج: 16875267  

Journal: :IEEE Transactions on Information Theory 2006

Journal: :IEEE Transactions on Information Theory 2018

Journal: :IEEE Transactions on Information Theory 2015

Journal: :IEEE Trans. Information Theory 1972
Thomas M. Cover

We introduce the problem of a single source attempting to communicate information simultaneously to several receivers. The intent is to model the situation of a broadcaster with multiple receivers or a lecturer with many listeners. Thus several different channels with a common input alphabet are specified. We shall determine the families of simultaneously achievable transmission rates for many ...

2011
Yu Cao Amir H. Banihashemi Minhua Ding Xin Guan Luis Gurrieri Leon Lee Guangping Li Patrick Li

Rateless codes, also known as fountain codes, are a class of erasure error-control codes that are particularly well suited for broadcast/ multicast systems. Raptor codes, as a particularly successful implementation of digital fountain codes, have been used as the applicationlayer forward error correction (FEC) codes in the third generation partnership program (3GPP) Multimedia Broadcast and Mul...

2001
Sven Buchholz Steffen Göbel Alexander Schill Thomas Ziegert

Recently there has been increasing interest in the application of broadcast networks as high-bandwidth downstream channels of hybrid asymmetric communication platforms. This interest stems from an increasing number of mobile internet users demanding for high quality services whereas wireless networks still lack in bandwidth substantially. In this paper we introduce a proxy architecture enabling...

2015

The purpose of cryptography is to transmit information in such a way that access to it is restricted entirely to the intended recipient, even if the transmission itself is received by others. This science is of increasing importance with the advent of broadcast and network communication, such as electronic transactions, the Internet, e-mail, and cell phones, where sensitive monetary, business, ...

Orthogonal frequency division multiplexing (OFDM) is used in order to provide immunity against very hostile multipath channels in many modern communication systems.. The OFDM technique divides the total available frequency bandwidth into several narrow bands. In conventional OFDM, FFT algorithm is used to provide orthogonal subcarriers. Intersymbol interference (ISI) and intercarrier interferen...

Journal: :IEEE Transactions on Information Theory 2015

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