Results 51 to 60 of about 175,320 (183)

Methods for the Reconstruction of Parallel Turbo Codes [PDF]

arXiv, 2010
We present two new algorithms for the reconstruction of turbo codes from a noisy intercepted bitstream. With these algorithms, we were able to reconstruct various turbo codes with realistic parameter sizes. To the best of our knowledge, these are the first algorithms able to recover the whole permutation of a turbo code in the presence of high noise ...
arxiv  

Serial vs. Parallel Turbo-Autoencoders and Accelerated Training for Learned Channel Codes [PDF]

arXiv, 2021
Attracted by its scalability towards practical codeword lengths, we revisit the idea of Turbo-autoencoders for end-to-end learning of PHY-Layer communications. For this, we study the existing concepts of Turbo-autoencoders from the literature and compare the concept with state-of-the-art classical coding schemes.
arxiv  

The RNA Binding Protein Bcas2 is Required for Antibody Class Switch in Activated‐B Cells

Exploration, EarlyView.
Bcas2 recruits DHX15 and SRSF7 to form a protein complex for the splicing of CSR‐related mRNA at the 5' ss and 3' ss, generating two mature mRNA isoforms, which are ultimately translated into CSR‐related proteins. These CSR‐related proteins bind to DNA associated with antibodies, affecting the DSB repair of the relevant DNA after AID induction, thereby
Yu Chen, Siyuan Sun, Chenxu Lu, Yixuan Li, Bing Fang, Xiangfeng Tang, Xuepeng Li, Weiru Yu, Yumei Lei, Longjie Sun, Ming Zhang, Jiazeng Sun, Ping Liu, Yongting Luo, Xingwang Zhao, Jing Zhan, Libing Liu, Rong Liu, Jiaqiang Huang, Ziwei Yi, Yifei Yu, Weihan Xiao, Zheng Ding, Lei Li, Dan Su, Fazheng Ren, Changchang Cao, Ran Wang, Wenbiao Shi, Juan Chen   +29 more
wiley   +1 more source

Turbo Decoding on the Binary Erasure Channel: Finite-Length Analysis and Turbo Stopping Sets [PDF]

IEEE Trans. Inf. Theory, vol. 53, no. 11, pp. 4059-4075, Nov. 2007, 2006
This paper is devoted to the finite-length analysis of turbo decoding over the binary erasure channel (BEC). The performance of iterative belief-propagation (BP) decoding of low-density parity-check (LDPC) codes over the BEC can be characterized in terms of stopping sets.
arxiv  

Concatenated Space Time Block Codes and TCM, Turbo TCM Convolutional as well as Turbo Codes

, 2000
Space-time block codes provide substantial diversity advantages for multiple transmit antenna systems at a low decoding complexity. In this paper, we concatenate space-time codes with Convolutional Codes (CC), Turbo Convolutional codes (TC), Turbo BCH ...
Hanzo, L., Liew, T.H., Pliquett, J., Yang, L-L., Yeap, B.L.   +4 more
core  

Mutant SOD1 aggregates formed in vitro and in cultured cells are polymorphic and differ from those arising in the CNS

Journal of Neurochemistry, Volume 164, Issue 1, Page 77-93, January 2023., 2023
In this issue Nordström et al. show that ALS associated superoxide dismutase 1 (SOD1) aggregates generated in vitro and in cell culture models are deviant from the aggregations that arise in the CNS of Tg mouse models of ALS. The study suggests that development of different strains of SOD1 aggregation in the CNS may depend on different disease ...
Ulrika Nordström, Lisa Lang, Elaheh Ekhtiari Bidhendi, Per Zetterström, Mikael Oliveberg, Jens Danielsson, Peter M. Andersen, Stefan L. Marklund   +7 more
wiley   +1 more source

Towards An Exact Combinatorial Algorithm for LP Decoding of Turbo Codes [PDF]

, 2013
We present a novel algorithm that solves the turbo code LP decoding problem in a fininte number of steps by Euclidean distance minimizations, which in turn rely on repeated shortest path computations in the trellis graph representing the turbo code. Previous attempts to exploit the combinatorial graph structure only led to algorithms which are either ...
arxiv   +1 more source

VHDL Implementation of different Turbo Encoder using Log-MAP Decoder [PDF]

Journal of Telecommunications, Volume 2, Issue 1, p49-53, April 2010, 2010
Turbo code is a great achievement in the field of communication system. It can be created by connecting a turbo encoder and a decoder serially. A Turbo encoder is build with parallel concatenation of two simple convolutional codes. By varying the number of memory element (encoder configuration), code rate (1/2 or 1/3), block size of data and iteration,
arxiv  

Magnetic Resonance Imaging for Dental Pulp Assessment: A Comprehensive Review

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Magnetic resonance imaging (MRI) has recently emerged as a promising modality for dental applications, offering radiation‐free imaging with superior soft tissue visualization capabilities compared to x‐ray‐based techniques such as spiral or cone beam computed tomography (CBCT).
Bing Han, Na Chen, Jin Luo, Farzaneh Afkhami, Ove A. Peters, Xiaoyan Wang   +5 more
wiley   +1 more source

Impact of glacial cycles and ocean currents on radiation events in the Japanese turban snail Lunella coreensis

Limnology and Oceanography Letters, EarlyView.
Abstract The Japanese turban snail Lunella coreensis is sensitive to ocean currents due to its short pelagic larval stage and moderate dispersal ability, making it an ideal model for studying genetic diversity shaped by paleoclimatic shifts. In this study, we analyzed the mitochondrial genes COI and 12S of museum samples collected from various coasts ...
Davin H. E. Setiamarga, Kazuki Hirota, Satoko Nakashima, Masa‐aki Yoshida, Shinnosuke Teruya, Takenori Sasaki   +5 more
wiley   +1 more source