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We propose a compressed sensing algorithm termed variance state propagation (VSP) for block-sparse signals, i.e., sparse signals that have nonzero coefficients occurring in clusters. The VSP algorithm is developed under the Bayesian…

信号处理 · 电气工程与系统科学 2020-06-24 Mingchen Zhang , Xiaojun Yuan , Zhen-Qing He

We propose, analyze and demonstrate an architecture for scalable cooperative reception. In a cluster of N + 1 receive nodes, one node is designated as the final receiver, and the N other nodes act as amplify-and-forward relays which adapt…

信息论 · 计算机科学 2016-11-17 Francois Quitin , Andrew T. Irish , Upamanyu Madhow

Carrier phase positioning (CPP) can enable cm-level accuracy in next-generation wireless systems, while recent literature shows that accuracy remains high using phase-only measurements in distributed MIMO (D-MIMO). However, the impact of…

信号处理 · 电气工程与系统科学 2026-02-06 Fatih Ayten , Musa Furkan Keskin , Akshay Jain , Mehmet C. Ilter , Ossi Kaltiokallio , Jukka Talvitie , Elena Simona Lohan , Mikko Valkama

In this letter, we propose a new molecular modulation scheme for nanonetworks. To evaluate the scheme we introduce a more realistic system model for molecule dissemination and propagation processes based on the Poisson distribution. We…

信息论 · 计算机科学 2012-09-26 Hamidreza Arjmandi , Amin Gohari , Masoume Nasiri Kenari , Farshid Bateni

Receivers with joint channel estimation and signal detection using superimposed pilots (SP) can achieve high transmission efficiency in orthogonal time frequency space (OTFS) systems. However, existing receivers have high computational…

信息论 · 计算机科学 2024-04-16 Fupeng Huang , Qinghua Guo , Youwen Zhang , Yuriy Zakharov

Exact inference in the linear regression model with spike and slab priors is often intractable. Expectation propagation (EP) can be used for approximate inference. However, the regular sequential form of EP (R-EP) may fail to converge in…

机器学习 · 统计学 2011-12-13 José Miguel Hernández-Lobato , Daniel Hernández-Lobato

We consider automorphism ensemble decoding (AED) of quasi-cyclic (QC) low-density parity-check (LDPC) codes. Belief propagation (BP) decoding on the conventional factor graph is equivariant to the quasi-cyclic automorphisms and therefore…

信息论 · 计算机科学 2022-08-17 Marvin Geiselhart , Moustafa Ebada , Ahmed Elkelesh , Jannis Clausius , Stephan ten Brink

A scheme for transferring classical information over a lossy bosonic channel is proposed by generalizing the proposal presented in Phys. Rev. Lett. 106, 240502 (2011) by Guha. It employs codewords formed by products of coherent states of…

量子物理 · 物理学 2016-12-21 Matteo Rosati , Andrea Mari , Vittorio Giovannetti

Since a quantum measurement generally disturbs the state of a quantum system, one might think that it should not be possible for a sender and receiver to communicate reliably when the receiver performs a large number of sequential…

量子物理 · 物理学 2013-07-12 Mark M. Wilde

We propose a novel, tractable latent state inference scheme for Markov jump processes, for which exact inference is often intractable. Our approach is based on an entropic matching framework that can be embedded into the well-known…

机器学习 · 计算机科学 2026-02-27 Yannick Eich , Bastian Alt , Heinz Koeppl

We present the tree-structure expectation propagation (Tree-EP) algorithm to decode low-density parity-check (LDPC) codes over discrete memoryless channels (DMCs). EP generalizes belief propagation (BP) in two ways. First, it can be used…

信息论 · 计算机科学 2015-03-19 Pablo M. Olmos , Juan José Murillo-Fuentes , Fernando Pérez-Cruz

Millimeter-wave and Terahertz frequencies, while promising high throughput and abundant spectrum, are highly susceptible to hardware non-idealities like phase-noise, which degrade the system performance and make transceiver implementation…

信息论 · 计算机科学 2020-10-28 Vishnu V. Ratnam

In this work, we formulate the fixed-length distribution matching as a Bayesian inference problem. Our proposed solution is inspired from the compressed sensing paradigm and the sparse superposition (SS) codes. First, we introduce sparsity…

信息论 · 计算机科学 2018-11-27 Mohamad Dia , Vahid Aref , Laurent Schmalen

Working from a Poisson-Gaussian noise model, a multi-sample extension of the Photon Counting Histogram Expectation Maximization (PCH-EM) algorithm is derived as a general-purpose alternative to the Photon Transfer (PT) method. This…

仪器与探测器 · 物理学 2024-03-08 Aaron J. Hendrickson , David P. Haefner , Stanley H. Chan , Nicholas R. Shade , Eric R. Fossum

A Viterbi-like decoding algorithm is proposed in this paper for generalized convolutional network error correction coding. Different from classical Viterbi algorithm, our decoding algorithm is based on minimum error weight rather than the…

信息论 · 计算机科学 2019-02-12 Hengjie Yang , Wangmei Guo

The sensitivity in optical interferometry is strongly affected by losses during the signal propagation or at the detection stage. The optimal quantum states of the probing signals in the presence of loss were recently found. However, in…

Low complexity decoding algorithms are necessary to meet data rate requirements in excess of 1 Tbps. In this paper, we study one and two bit message passing algorithms for belief propagation decoding of low-density parity-check (LDPC) codes…

信息论 · 计算机科学 2019-10-21 Fabian Steiner , Emna Ben Yacoub , Balazs Matuz , Gianluigi Liva , Alexandre Graell i Amat

Massive MIMO (multiple-input multiple-output) detection is an important topic in wireless communication and various machine learning based methods have been developed recently for this task. Expectation Propagation (EP) and its variants are…

机器学习 · 计算机科学 2024-09-06 Qincheng Lu , Sitao Luan , Xiao-Wen Chang

We propose a hybrid protocol combining a rectangular error-correcting code - paired with an error-detecting code - and a backward error correction in order to send packages of information over a noisy channel. We depict a linear-time…

网络与互联网体系结构 · 计算机科学 2019-04-04 Binh-Minh Bui-Xuan , Pierre Meyer , Antoine Roux

We propose an interferometric scheme for the estimation of a linear combination with non-negative weights of an arbitrary number $M>1$ of unknown phase delays, distributed across an $M$-channel linear optical network, with…

量子物理 · 物理学 2019-12-04 Dario Gatto , Paolo Facchi , Frank Narducci , Vincenzo Tamma