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Deep Learning Based on Orthogonal Approximate Message Passing for CP-Free OFDM

Jing Zhang, Hengtao He, Chao-Kai Wen, Shi Jin, Geoffrey Ye Li
2019 ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
In this article, deep learning based on orthogonal approximate message passing (DL-OAMP) is used to address these problems.  ...  Channel estimation and signal detection are very challenging for an orthogonal frequency division multiplexing (OFDM) system without cyclic prefix (CP).  ...  The trainable iterative soft thresholding algorithm (TISTA) in [14] , which is also a model-driven method, unfolds the orthogonal approximate message passing (OAMP) algorithm and trains some variables  ... 
doi:10.1109/icassp.2019.8682639 dblp:conf/icassp/ZhangHWJL19 fatcat:ibuqdvop4rbqpc6wkdjhkpzok4

Improved large-MIMO detection based on damped belief propagation

Pritam Som, Tanumay Datta, A. Chockalingam, B. Sundar Rajan
2010 IEEE Information Theory Workshop 2010 (ITW 2010)  
Large-MIMO architectures based on spatial multi plexing (V-BLAST) as well as non-orthogonal space-time block codes (STBC) from cyclic division algebra (CDA) are consid ered.  ...  We adopt graphical models based on Markov random fields (MRF) and factor graphs (FG).  ...  Message passing is carried out on this graphical model to compute the marginal probabilities of the variables.  ... 
doi:10.1109/itwksps.2010.5503188 fatcat:2xeeegn67jbq7jknmlxn23tzza

Vector Approximate Message Passing Algorithm for Structured Perturbed Sensing Matrix [article]

Jiang Zhu, Qi Zhang, Xiangming Meng, Zhiwei Xu
2018 arXiv   pre-print
variant vector approximate message passing (VAMP) algorithm with the perturbation being structured, based on the recent VAMP algorithm.  ...  While previous work has focused on extending the approximate message passing (AMP) and LASSO algorithm to deal with the independent and identically distributed (i.i.d.) perturbation, we propose the robust  ...  While previous work has focused on extending the approximate message passing (AMP) and LASSO algorithm to deal with the independent and arXiv:1808.08579v1  ... 
arXiv:1808.08579v1 fatcat:dl6yycf5qzgtzor46vnj257dey

Wavelet packet division multiplexing and wavelet packet design under timing error effects

Kon Max Wong, Jiangfeng Wu, T.N. Davidson, Qu Jin
1997 IEEE Transactions on Signal Processing  
properties ensure that the overlapping message signals can be separated by a simple correlator receiver.  ...  overlapping nature of such waveforms in time and frequency provides a capacity improvement over the commonly used frequency division multiplexing (FDM) and time division multiplexing (TDM) schemes while their orthogonality  ...  Wavelet packet basis functions are employed as coding waveforms because they provide self orthogonality based on time translation and mutual orthogonality based on occupancy of different orthogonal subspaces  ... 
doi:10.1109/78.650245 fatcat:qhe4kw2ocrhtbcul62aneh2wim

Topological Interference Management with Decoded Message Passing [article]

Xinping Yi, Giuseppe Caire
2017 arXiv   pre-print
that one-to-one interference alignment boils down to orthogonal access because of message passing.  ...  For this TIM problem with decoded message passing (TIM-MP), we model the interference pattern by conflict digraphs, connect orthogonal access to the acyclic set coloring on conflict digraphs, and show  ...  THE OPTIMALITY OF ORTHOGONAL ACCESS VIA POLYHEDRAL COMBINATORICS Having assessed that one-one-one interference alignment under message passing decoding boils down to orthogonal access, a natural question  ... 
arXiv:1702.08079v1 fatcat:inwwgukqlrbhhbmzxxtkrhz6r4

Research on Uplink MIMO-SCMA Communication System

Sixing Lu, Duoying Zhang
2019 ICIC Express Letters  
Sparse code multiple access (SCMA) is a promising non-orthogonal multiple access scheme for future mobile communication.  ...  Conventional message passing algorithm.  ...  Proposed sub-set based message passing algorithm.  ... 
doi:10.24507/icicel.13.07.575 fatcat:sy265vmqwrdixlvuruakffwxim

Joint Source-Channel Coding for Semantics-Aware Grant-Free Radio Access in IoT Fog Networks [article]

Johannes Dommel, Zoran Utkovski, Osvaldo Simeone, Slawomir Stanczak
2021 arXiv   pre-print
Cloud and edge detection schemes based on Bayesian message passing are designed and trade-offs between cloud and edge processing are assessed.  ...  based on joint source-channel (JSC) coding via a non-orthogonal generalization of type-based multiple access (TBMA).  ...  We design DtF and QF schemes based on Bayesian message passing by leveraging the hybrid generalized approximate message passing (H-GAMP) algorithm [17] .  ... 
arXiv:2101.11309v1 fatcat:caasaav4v5aztevo4npafbmaum

Nonbacktracking expansion of finite graphs

G. Timár, R. A. da Costa, S. N. Dorogovtsev, J. F. F. Mendes
2017 Physical review. E  
Message passing equations yield a sharp percolation transition in finite graphs, as an artifact of the locally treelike approximation.  ...  These solutions are good approximations to observables for the models on the original graph when it is sufficiently large and not strongly correlated.  ...  ACCURACY AND LIMITATIONS OF THE MESSAGE PASSING APPROACH We have shown that when we are using message passing equations to approximately solve any given problem on a finite graph, we are actually solving  ... 
doi:10.1103/physreve.95.042322 pmid:28505741 fatcat:f44ay2rg6vadbkphwebeidnzy4

Convolutional Approximate Message-Passing [article]

Keigo Takeuchi
2020 arXiv   pre-print
The proposed algorithm solves the disadvantages of approximate message-passing (AMP) and orthogonal/vector AMP, and realizes their advantages.  ...  terms that depend only on messages in the latest iteration.  ...  INTRODUCTION A PPROXIMATE message-passing (AMP) [1] is a lowcomplexity algorithm of signal recovery in compressed sensing [2] , [3] .  ... 
arXiv:2002.08632v1 fatcat:hetsqghltngrvpytwxi2g2qch4

Marginal Inference in Continuous Markov Random Fields Using Mixtures

Yuanzhen Guo, Hao Xiong, Nicholas Ruozzi
Existing work on approximate inference has focused on approximately computing the messages as part of the loopy belief propagation algorithm either via sampling methods or moment matching relaxations.  ...  In this work, we present an alternative family of approximations that, instead of approximating the messages, approximates the beliefs in the continuous Bethe free energy using mixture distributions.  ...  Another alternative, the stochastic orthogonal series message-passing algorithm (SOSMP) approximates the BP message updates using orthogonal series expansions (Noorshams and Wainwright 2013) .  ... 
doi:10.1609/aaai.v33i01.33017834 fatcat:3aikcbaf4zbf3db5quciqwsxwm

Iterative Receivers for Downlink MIMO-SCMA: Message Passing and Distributed Cooperative Detection [article]

Weijie Yuan, Nan Wu, Qinghua Guo, Yonghui Li, Chengwen Xing, Jingming Kuang
2017 arXiv   pre-print
The non-orthogonal multiple access (NOMA) has emerged as a promising technology to further increase the access efficiency of wireless networks.  ...  To tackle this challenge, we propose near optimal low-complexity iterative receivers based on factor graph.  ...  Then, using Gaussian approximation of extrinsic information, all messages on factor graph can be parameterized into a Gaussian form, which reduces the computational complexity of message updating significantly  ... 
arXiv:1710.08590v1 fatcat:3ocidpbu4jeixii42ufmor43gy

Low-temperature excitations within the Bethe approximation

I Biazzo, A Ramezanpour
2013 Journal of Statistical Mechanics: Theory and Experiment  
To this end, we write the overlap between two wave functions within the Bethe approximation which allows us to replace the global orthogonality constraint with some local constraints on the variational  ...  The method is applied to the transverse Ising model and different levels of approximations are compared with the exact numerical solutions for small systems.  ...  of the optimal variational parameters, all within the Bethe approximation and implemented by a local message-passing algorithm.  ... 
doi:10.1088/1742-5468/2013/04/p04011 fatcat:yw27esx4mjgjlpk6lq27mhogk4

Orthogonal transform multiplexing with memoryless nonlinearity: A possible alternative to traditional coded-modulation schemes

Sergey V Zhidkov
2017 2017 9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)  
Our computer simulations confirm that if the decoder relies on a modified approximate message passing algorithm, the proposed modulation technique exhibits performance on par with state-of-the-art coded  ...  In this paper, we propose a novel joint coding-modulation technique based on serial concatenation of orthogonal linear transform, such as discrete Fourier transform (DFT) or Walsh-Hadamard transform (WHT  ...  Our computer simulations confirmed that if the decoder relies on the approximate message passing algorithm, the proposed modulation technique exhibits performance on par with state-of-the-art coded modulation  ... 
doi:10.1109/icumt.2017.8255159 dblp:conf/icumt/Zhidkov17 fatcat:fccachegobdwvm2qwaribokgwe

Turbo-like Iterative Multi-user Receiver Design for 5G Non-orthogonal Multiple Access [article]

Xiangming Meng, Yiqun Wu, Chao Wang, Yan Chen
2018 arXiv   pre-print
passing algorithm (MPA) with much lower complexity.  ...  Non-orthogonal multiple access (NoMA) as an efficient way of radio resource sharing has been identified as a promising technology in 5G to help improving system capacity, user connectivity, and service  ...  Table 1 : 1 Brief Summary of various MU Detectors MU Detector Basic Principle Properties MPA Sum-product message passing performed on the factor graph of NoMA transmission · Near ML detection  ... 
arXiv:1812.04812v1 fatcat:xieudofiqzb2zdivnfjwmurgwu

An Approximate Message Passing Algorithm for Rapid Parameter-Free Compressed Sensing MRI [article]

Charles Millard, Aaron T Hess, Boris Mailhé, Jared Tanner
2020 arXiv   pre-print
For certain sensing matrices, the Approximate Message Passing (AMP) algorithm efficiently reconstructs undersampled signals.  ...  In response we present an algorithm based on Orthogonal AMP constructed specifically for variable density partial Fourier sensing matrices.  ...  Herein we present a method for undersampled signal reconstruction based on OAMP [10] which we term the Variable Density Approximate Message Passing (VDAMP) algorithm.  ... 
arXiv:1911.01234v3 fatcat:4xajcccm45ft7bsdlo5uezx2ky
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