Results 111 to 120 of about 169 (158)

Coded modulation with unequal error protection

IEEE Transactions on Communications, 1993
It is always desirable to maintain communications in difficult situations, even though fewer messages can get across. The author has developed such capabilities for one-way broadcast media, such as the envisioned terrestrial broadcasting of digital high-definition television signals.
CALDERBANK, ARTHUR ROBERT, SESHADRI, NAMBIRAJAN   +1 more
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Multilevel Codes for Unequal Error Protection

Proceedings. IEEE International Symposium on Information Theory, 1993
Summary: In many speech and image coding schemes, some of the coded bits are extremely sensitive to channel errors while some others exhibit very little sensitivity. In order to make the best use of channel redundancy, unequal error protection (UEP) codes are needed. In a bandlimited environment, such coding and the modulation should be integrated. Two
A. Robert Calderbank, Nambirajan Seshadri   +1 more
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On linear unequal error protection codes

IEEE Transactions on Information Theory, 1967
Summary: The properties of linear codes over \(\mathrm{GF}(q)\) that provide unequal error protection (UEP) of information digits are discussed. A design is proposed for optimal binary systematic linear UEP codes. Broad classes of iterative and concatenated UEP codes are constructed.
Burt Masnick, Jack K. Wolf
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BATS code with unequal error protection

2016 IEEE International Conference on Communication Systems (ICCS), 2016
Batched sparse (BATS) coding is a class of sparse random linear network coding scheme that achieves near-optimal tradeoff between temporal coding length and network throughput for file delivery over erasure networks. Existing BATS codes are mostly designed for equal error protection only.
Xiaoli Xu 0001, Yong Zeng 0001, Yong Liang Guan 0001, Lei Yuan 0002   +3 more
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On unequal error protection raptor codes

2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2015
Raptor codes are the most advanced fountain codes that can provide dynamically changeable code rate and have linear time encoding and decoding. In multimedia communications and different other areas, it is desired that channel codes can provide the property of unequal error protection (UEP).
Hussein Fadhel, Lei Cao 0001
openaire   +1 more source

Constructive codes with unequal error protection

IEEE Transactions on Information Theory, 1997
Summary: An asymptotic lower bound on the rates of two-level binary codes with unequal error protection is presented. The bound is based on a class of codes that are constructive in the sense that the description complexity is polynomial in the codeword length.
Eva K. Englund, A. I. Hansson
openaire   +1 more source

Unequal error protection for convolutional codes

IEEE Transactions on Information Theory, 2006
In this correspondence, unequal error-correcting capabilities of convolutional codes are studied. For errors in the information symbols and code symbols, the free input- and output-distances, respectively, serve as "unequal" counterparts to the free distance. When communication takes place close to or above the channel capacity the error bursts tend to
Victor A. Pavlushkov, Rolf Johannesson, Victor V. Zyablov   +2 more
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Unequal error protection codes

8th European Conference on Electrotechnics, Conference Proceedings on Area Communication, 2003
A method is presented for constructing nonlinear unequal error protection codes. The method uses linear codes as building blocks, thus allowing simple decoding. Comparisons between some two level UEP codes constructed with this method and the direct sum of codes show that these examples perform better than the direct sum of linear codes. >
K. Granstrom, E. Ottersten
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Is Unequal Error Protection useful?

2011 IEEE International Symposium on Information Theory Proceedings, 2011
When transmitting source-encoded data, not all information bits are equally important, due to the different sensitivity of the source decoder to errors. Unequal Error Protection (UEP) consists of allocating coding redundancy depending on the importance of the information bits.
Ozgun Y. Bursalioglu, Giuseppe Caire
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Unequal Error Protection for Stereoscopic Video Streaming

2007 IEEE 15th Signal Processing and Communications Applications, 2007
The utilization of forward error correction (FEC) schemes for stereo video streaming is investigated. Stereo video is categorized in 3 layers and each layer is protected with different protection ratios for efficient streaming. Systematic Reed-Solomon (RS) and Luby Transform (LT) codes are utilized as the error protection schemes.
Tan, Ahmet Serdar, Aksay, A., Bilen, Ç., Bozdağı-Akar, G., Arıkan, Erdal   +4 more
openaire   +2 more sources