Results 101 to 110 of about 1,375 (127)

A New Approach in Digital Image Compression Using Unequal Error Protection (UEP)

Applied Mechanics and Materials, 2014
This paper proposes a new algorithms for compression of digital images especially at the encoding stage of compressive sensing. The research consider the fact that a certain region of a given imagery is more important in most applications. The first algorithm proposed for the encoding stage of Compressive Sensing (CS) exploits the known structure of ...
Okuwobi Idowu Paul, Yong Hua Lu
openaire   +1 more source

New research on unequal error protection (UEP) property of irregular LDPC codes

2003 International Symposium on VLSI Technology, Systems and Applications. Proceedings of Technical Papers. (IEEE Cat. No.03TH8672), 2004
A new scheme is proposed about how to make use of the unequal error protection (UEP) property of irregular low-density parity-check (LDPC) codes. By means of the construction of a weight-increasing parity-check matrix and systematic encoding, the mapping between the important information data and the elite bits of an irregular LDPC code becomes ...
null Xiumei Yang, null Dongfeng Yuan, null Piming Ma, null Mingyan Jiang   +3 more
openaire   +1 more source

Unequal error protection (UEP) of wavelet coded video using multi-layered Hierarchical QAM

2011 International Conference on Multimedia, Signal Processing and Communication Technologies, 2011
In this paper, the performance of unequal error protection (UEP) scheme for wavelet coded video using multi-layered 64-Hierarchical QAM (64-HQAM) is presented. Depending on the error sensitivity of coded video bitstream against channel errors, the bitstream is partitioned into multiple sub-streams.
Mohd Ayyub Khan, Athar Ali Moinuddin, Ekram Khan   +2 more
openaire   +1 more source

A novel unequal error protection (UEP) scheme using D-STTD for multicast service

IEEE Transactions on Wireless Communications, 2009
To significantly enhance the spectral efficiency of the MBS service, UEP and MIMO are important core technologies to realize such challenging goal. Taking into account of the implementation constraints, 4 times 2 is widely accepted as a reasonable MIMO setup and is a mandatory configuration of the next generation wireless systems.
Zhang, Shunqing, Lau, Vincent Kin Nang
openaire   +2 more sources

Further Exploration of Convolutional Encoders for Unequal Error Protection and New UEP Convolutional Codes

IEEE Transactions on Information Theory, 2016
In this paper, the unequal error protection (UEP) capability of convolutional encoders, in terms of the separation vector, is studied from an algebraic viewpoint. A simple procedure is presented for constructing a generator matrix, which is basic and has the largest separation vector for every convolutional code.
Hung-Hua Tang, Chung-Hsuan Wang, Mao-Chao Lin   +2 more
openaire   +1 more source

A new gray-scale watermark method based on irregular LDPC codes with Unequal Error Protection (UEP)

SPIE Proceedings, 2016
In this paper, we propose a discrete wavelet transform (DWT)-singular value decomposition (SVD) gray-scale image watermark method based on the irregular Low-density Parity-check (LDPC) codes with unequal error protection (UEP). As one of the best effective ways of protecting copyright of multimedia data, digital watermark technology is widely ...
Yunxia Lin, Yi Wan
openaire   +1 more source

Unequal Error Protection (UEP) Image Transmission System with Lifting Wavelet Transform (LWT) Based Reed Solomon (RS) Coded Cooperation Scheme

IEICE Transactions on Communications, 2011
This paper presents a new unequal error protection (UEP) image transmission system that incorporates a Lifting Wavelet Transform (LWT) and Reed Solomon (RS) coded cooperation scheme to increase image transmission diversity, as well as save transmission bandwidth.
A. H. M. ALMAWGANI, M. F. M. SALLEH
openaire   +1 more source

Realizing repeated quantum error correction in a distance-three surface code

Nature, 2022
Sebastian Krinner, Nathan Lacroix, Ants Remm   +2 more
exaly  

Exponential suppression of bit or phase errors with cyclic error correction

Nature, 2021
Kevin J Satzinger, Andrew Dunsworth, Daniel Sank   +2 more
exaly  

Error-corrected next-generation sequencing to advance nonclinical genotoxicity and carcinogenicity testing

Nature Reviews Drug Discovery, 2023
exaly