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Design of bandwidth-efficient unequal error protection LDPC codes
IEEE Transactions on Communications, 2010 This paper presents a strategy for the design of bandwidth-efficient LDPC codes with unequal error protection. Bandwidth efficiency is obtained by appropriately designing the codes for higher order constellations, assuming an AWGN channel.
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Quaternary Unequal Error Protection Codes
2008We consider codes that offer unequal error protection to different information symbols, as measured by the so-called separation vector (a generalisation of the minimum Hamming distance). We determine the parameters of all optimal linear quaternary codes of length at most eleven.
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On unequal error protection using convolutional codes
Signal Processing, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rudolph Brissett, Janak Sodha
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Polar codes with the unequal error protection property
Computer Communications, 2018Abstract The Internet of Things (IoT) is expected to support a wide variety of devices with different transmission reliability requirements. Channel codes with the unequal error protection (UEP) property are rather appealing for such applications. As the first provably capacity-achieving codes, polar codes have excellent error-correcting performances
Chen Cui +3 more
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On the Unequal Error Protection for Progressive Image Transmission
IEEE Transactions on Image Processing, 2007In this paper, we consider the unequal error protection (UEP) for progressive image transmission when the coded packet size is fixed. First, we prove that, for the source code with convex rate-distortion (R-D) function and practically used channel codes, the channel code rate for each packet in the optimal rate allocation is nondecreasing indeed. Then,
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Canonical convolutional encoders for unequal error protection
2008 IEEE International Symposium on Information Theory, 2008In this paper, canonical convolutional encoders are studied for unequal error protection (UEP) from an algebraic theoretical viewpoint. We show that for any convolutional code there exists at least a canonical generator matrix which has the greatest separation vector, and hence the optimal UEP capability, among all canonical ones.
Chung-Hsuan Wang, Chi-Chao Chao
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Unequal error protection and progressive decoding for JPEG2000
Signal Processing: Image Communication, 2005This paper presents an unequal error protection scheme for still and motion image transmissions. The underlying channel codes are created using a Plotkin construction and offer the novel ability of using one long channel codeword to protect an entire image, yet still allowing progressive decoding. Progressive quality improvements occur in two ways: the
Lingling Pu +3 more
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Parallel concatenated codes with unequal error protection
IEEE Transactions on Communications, 1998Summary: We show how parallel concatenated codes (PCC's, also known as turbo codes) can be endowed with unequal error protection (UEP). Given the two component encoders of the PCC encoder and the desired interleaver size, UEP is achieved by: 1) suitably positioning the different importance classes of information symbols into the encoder input frame; 2)
Giuseppe Caire, Ezio Biglieri
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Embedding unequal error protection into turbo codes
Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256), 2001A technique to embody unequal error protection into turbo codes is presented. Through proper optimization of the turbo codes interleaver, different levels of error protection can be accommodated within the same encoded block. The effectiveness of the proposed approach is demonstrated in the case of transmission of JPEG2000 coded images across an AWGN ...
GRANGETTO, MARCO +2 more
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On unequal error protection for LZSS compressed data
annals of telecommunications - annales des télécommunications, 2009An unequal error protection scheme for Lempel–Ziv–Storer–Szymanski (LZSS) compressed data is proposed. The novel method divides the compressed data into short blocks, which allows for near-real-time operation. The error protection is obtained through the application of BCH codes and block interleavers. Compared to other methods found in the literature,
Richard Demo Souza +2 more
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