Results 11 to 20 of about 9,607 (255)
Message-passing algorithms for compressed sensing [PDF]
Proceedings of the National Academy of Sciences, 2009 Compressed sensing aims to undersample certain high-dimensional signals yet accurately reconstruct them by exploiting signal characteristics. Accurate reconstruction is possible when the object to be recovered is sufficiently sparse in a known basis.
David L. Donoho +2 more
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Message passing for the coloring problem: Gallager meets Alon and Kahale [PDF]
Discrete Mathematics & Theoretical Computer Science, 2007 Message passing algorithms are popular in many combinatorial optimization problems. For example, experimental results show that \emphsurvey propagation (a certain message passing algorithm) is effective in finding proper k-colorings of random graphs in ...
Sonny Ben-Shimon, Dan Vilenchik
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Warm-Starting in Message Passing algorithms
2022 IEEE International Symposium on Information Theory (ISIT), 2022 Vector Approximate Message Passing (VAMP) provides the means of solving a linear inverse problem in a Bayes-optimal way assuming the measurement operator is sufficiently random. However, VAMP requires implementing the linear minimum mean squared error (LMMSE) estimator at every iteration, which makes the algorithm intractable for large-scale problems ...
Skuratovs, Nikolajs, Davies, Mike E.
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Generalized approximate message passing based SrCMA satellite receiver
Dianxin kexue, 2022 In order to satisfy the requirements of the transmission rate and spectrum resource for various terminals and equipment in the satellite internet, a generalized approximation-based message passing optimization satellite receiver was designed.Considering ...
Le YU +5 more
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Divergence Estimation in Message Passing algorithms
CoRR, 2021 This work has been submitted to the IEEE for possible ...
Nikolajs Skuratovs, Michael Davies 0001
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Cooperative Localization and Time Synchronization Based on M-VMP Method
Sensors, 2020 Localization estimation and clock synchronization are important research directions in the application of wireless sensor networks. Aiming at the problems of low positioning accuracy and slow convergence speed in localization estimation methods based on ...
Zhongliang Deng +5 more
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Joint user activity and signal detection for massive multiple-input multiple-output
Dianxin kexue, 2021 In uplink grant-free massive multiple-input multiple-output (mMIMO) systems, the performance of available methods for joint user activity and signal detection deteriorates when the correlation of receiving antennas or the number of active devices ...
Xiaoqun SONG, Ming JIN, Zhongjie JIA
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Message-Passing Algorithms and Improved LP Decoding [PDF]
IEEE Transactions on Information Theory, 2009 Linear programming (LP) decoding for low-density parity-check codes (and related domains such as compressed sensing) has received increased attention over recent years because of its practical performance-coming close to that of iterative decoding algorithms-and its amenability to finite-blocklength analysis.
Sanjeev Arora +2 more
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Improved MAX-Log MPA multiuser detection algorithm in SCMA system [PDF]
Dianzi Jishu Yingyong, 2018 Sparse code multiple access(SCMA) is a novel non-orthogonal multiple access scheme to face the future 5G communication. In allusion to the problem that sparse code multiple access(SCMA) system based on a logarithm-domain MAX-Log message passing algorithm(
Wu Xiong +3 more
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Message Passing Algorithm for Multiuser Detection Based on SCMA System [PDF]
Jisuanji gongcheng, 2018 Aiming at the existing Message Passing Algorithm(MPA) based on parallel strategy and serial strategy,and the parallel MAX-Log MPA based on log domain,there is a lack of comparative analysis of algorithm complexity and detection performance,the ...
ZHANG Xuewan,GE Wenping,WU Xiong
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