Results 51 to 60 of about 232,767 (181)

Unequal Error Protected JPEG 2000 Broadcast Scheme with Progressive Fountain Codes

open access: yes, 2012
This paper proposes a novel scheme, based on progressive fountain codes, for broadcasting JPEG 2000 multimedia. In such a broadcast scheme, progressive resolution levels of images/video have been unequally protected when transmitted using the proposed ...
Chen, Zhao   +3 more
core   +1 more source

Rate-splitting for the deterministic broadcast channel [PDF]

open access: yes, 2005
We show that the deterministic broadcast channel, where a single source transmits to M receivers across a deterministic mechanism, may be reduced, via a rate-splitting transformation, to another (2M−1)-receiver deterministic broadcast channel problem ...
Coleman, Todd P.   +3 more
core   +1 more source

A simple Encoding Scheme to Achieve the Capacity of Half-Duplex Relay Channel

open access: yesAdvances in Electrical and Electronic Engineering, 2022
In this paper, the Half-Duplex Relay Channel (HDRC) is thoroughly investigated. Even though this channel model is widely studied, the capacity is not yet fully understood and particularly has not been tightly expressed.
Zouhair Al-qudah, Khalid Ahmad Darabkh
doaj   +1 more source

The State-Dependent Semideterministic Broadcast Channel [PDF]

open access: yesIEEE Transactions on Information Theory, 2012
We derive the capacity region of the state-dependent semideterministic broadcast channel with noncausal state-information at the transmitter. One of the two outputs of this channel is a deterministic function of the channel input and the channel state, and the state is assumed to be known noncausally to the transmitter but not to the receivers. We show
Amos Lapidoth, Ligong Wang 0002
openaire   +3 more sources

A Novel Capture-Aware TDMA-Based MAC Protocol for Safety Messages Broadcast in Vehicular Ad Hoc Networks

open access: yesIEEE Access, 2019
Since broadcast communication is considered the highly appropriate technique for the dissemination of safety messages in vehicular ad hoc networks (VANETs), it is vital to design a high-efficient medium access control (MAC) protocol for vehicles ...
Yang Wang   +4 more
doaj   +1 more source

Approximate Sum-Capacity of K-user Cognitive Interference Channels with Cumulative Message Sharing [PDF]

open access: yes, 2013
This paper considers the K user cognitive interference channel with one primary and K-1 secondary/cognitive transmitters with a cumulative message sharing structure, i.e cognitive transmitter $i\in [2:K]$ knows non-causally all messages of the users with
Devroye, Natasha   +2 more
core   +1 more source

On the user selection for MIMO broadcast channels [PDF]

open access: yesProceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
In this paper, a downlink communication system, in which a Base Station (BS) equipped with $M$ antennas communicates with $N$ users each equipped with $K$ receive antennas, is considered. An efficient suboptimum algorithm is proposed for selecting a set of users in order to maximize the sum-rate throughput of the system. For the asymptotic case when $N$
Alireza Bayesteh, Amir K. Khandani
openaire   +3 more sources

A Novel Approach for Improving XML Querying over Wireless Broadcast Channels

open access: yesSensors
The querying of large XML data over wireless broadcast channels can reduce bandwidth utilization, cause significant latency, and produce inefficient energy usage.
Vinay Kumar Ahlawat   +6 more
doaj   +1 more source

Classical codes for quantum broadcast channels [PDF]

open access: yes2012 IEEE International Symposium on Information Theory Proceedings, 2012
v4: 20 pages, final version to appear in IEEE Transactions on Information ...
Ivan Savov, Mark M. Wilde
openaire   +2 more sources

Distributed Hypothesis Testing over Noisy Broadcast Channels

open access: yesInformation, 2021
This paper studies binary hypothesis testing with a single sensor that communicates with two decision centers over a memoryless broadcast channel. The main focus lies on the tradeoff between the two type-II error exponents achievable at the two decision ...
Sadaf Salehkalaibar, Michèle Wigger
doaj   +1 more source

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