Results 41 to 50 of about 134 (104)

Research on unequal error protection of irregular LDPC codes

open access: yesTongxin xuebao, 2005
An irregular low-density parity-check (LDPC) code with unequal error protection (UEP) property was proposed. A weight-increasing parity-check (WIPC) matrix was constructed.
MA Pi-ming, YUAN Dong-feng, YANG Xiu-mei
doaj   +2 more sources

EFFICIENT MOBILE VIDEO TRANSMISSION BASED ON A JOINT CODING SCHEME

open access: yesJournal of ICT, 2017
In this paper, we propose a joint coding design which uses the Symbol Forward Error Correction (S-FEC) at the application layer. The purpose of this work is on one hand to minimize the Packet Loss Rate (PLR) and, on the other hand to maximize the visual ...
Rima Boudjadja   +3 more
doaj   +3 more sources

Rateless Polar-Spinal Coding Scheme With Enhanced Information Unequal Error Protection

open access: yesIEEE Access, 2019
In this paper, a rateless coding scheme with enhanced unequal error protection (UEP) property is proposed by concatenating the systematic polar code (SPC) and spinal code, where SPC is used as the outer code and spinal code is the inner code.
Hao Liang   +3 more
doaj   +1 more source

Adaptive UEP and Packet Size Assignment for Scalable Video Transmission over Burst-Error Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
This work proposes an adaptive unequal error protection (UEP) and packet size assignment scheme for scalable video transmission over a burst-error channel. An analytic model is developed to evaluate the impact of channel bit error rate on the quality of
Su Yih-Ching   +2 more
doaj   +1 more source

An unequal error protection scheme for non-binary LDPC using statistical QAM and prioritized mapping [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2018
Low Density Parity Check (LDPC) codes are among the most popular channel codes used nowadays because of their ability to achieve near channel capacity performances.
Indoonundon Madhavsingh   +1 more
doaj   +1 more source

Improved Design of Unequal Error Protection LDPC Codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
We propose an improved method for designing unequal error protection (UEP) low-density parity-check (LDPC) codes. The method is based on density evolution.
Sandberg Sara
doaj  

Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX

open access: yesAdvances in Multimedia, 2012
Broadband wireless technology, though aimed at video services, also poses a potential threat to video services, as wireless channels are prone to error bursts. In this paper, an adaptive, application-layer Forward Error Correction (FEC) scheme protects H.
Laith Al-Jobouri   +2 more
doaj   +1 more source

UEP Concepts in Modulation and Coding

open access: yesAdvances in Multimedia, 2010
First unequal error protection (UEP) proposals date back to the 1960's (Masnick and Wolf; 1967), but now with the introduction of scalable video, UEP develops to a key concept for the transport of multimedia data.
Werner Henkel   +5 more
doaj   +1 more source

A New Unequal Error Protection Technique Based on the Mutual Information of the MPEG-4 Video Frames over Wireless Networks

open access: yesIranian Journal of Electrical and Electronic Engineering, 2009
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)
H. Ghanei Yakhdan   +2 more
doaj  

Energy-Constrained Quality Optimization for Secure Image Transmission in Wireless Sensor Networks

open access: yesAdvances in Multimedia, 2007
Resource allocation for multimedia selective encryption and energy efficient transmission has not been fully investigated in literature for wireless sensor networks (WSNs).
Wei Wang   +4 more
doaj   +1 more source

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