An Approximate Message Passing Framework for Side Information

An Approximate Message Passing Framework for Side Information
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辅助信息的近似消息传递框架

DOI:
10.1109/tsp.2019.2899286
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发表时间:
2018
影响因子:
5.4
通讯作者:
D. Needell
D. Needell
中科院分区:
工程技术1区
文献类型:
--
作者:
A. Ma;You Zhou;Cynthia Rush;D. Baron;D. Needell

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近似消息传递(AMP)方法最近在稀疏信号恢复领域受到关注。有关信号的附加信息或辅助信息 (SI) 通常可用,并且有助于有效的信号恢复。本文提出了一个基于 AMP 的框架,该框架利用 SI,并且可以在 SI 产生可分离分布的各种设置中轻松实现。为了说明我们方法的简单性和适用性,该框架被应用于伯努利-高斯(BG)模型和时变生死漂移(BDD)信号模型,其动机是信道估计中的应用。我们开发了一套称为 AMP-SI 的算法,并为 BDD 和 BG 模型导出降噪器。证明我们方法优势的数值证据与所提出的状态演化准确性的经验证据一起提供。
Approximate message passing (AMP) methods have gained recent traction in sparse signal recovery. Additional information about the signal, or side information (SI), is commonly available and can aid in efficient signal recovery. This paper presents an AMP-based framework that exploits SI and can be readily implemented in various settings for which the SI results in separable distributions. To illustrate the simplicity and applicability of our approach, this framework is applied to a Bernoulli–Gaussian (BG) model and a time-varying birth-death-drift (BDD) signal model, motivated by applications in channel estimation. We develop a suite of algorithms, called AMP-SI, and derive denoisers for the BDD and BG models. Numerical evidence demonstrating the advantages of our approach are presented alongside empirical evidence of the accuracy of a proposed state evolution.
DOI: 10.1109/isit.2016.7541383
发表时间: 2016
期刊: --
影响因子: --
作者:
Chen M
通讯作者: Chen M
带有辅助信息的近似消息传递的状态演化分析
DOI: 10.1109/isit.2019.8849735
发表时间: 2019
期刊: 2019 IEEE International Symposium on Information Theory (ISIT
影响因子: --
作者:
Liu, Hangjin;Rush, Cynthia;Baron, Dror
通讯作者: Baron, Dror
DOI: 10.1118/1.2836423
发表时间: 2008-02-01
期刊: MEDICAL PHYSICS
影响因子: 3.8
作者:
Chen, Guang-Hong;Tang, Jie;Leng, Shuai
通讯作者: Leng, Shuai