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A Decentralized Bayesian Algorithm For Distributed Compressive Sensing in Networked Sensing Systems

delete2016-02-01
delete29
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陈
陈伟 (Wei Chen) *
I
Ian Wassell *
DOI:10.1109/TWC.2015.2487989delete
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摘要

摘要

En 中文
Compressive sensing (CS), as a new sensing/sampling paradigm, facilitates signal acquisition by reducing the number of samples required for reconstruction of the original signal, and thus appears to be a promising technique for applications where the sampling cost is high, e.g., the Nyquist rate exceeds the current capabilities of analog-to-digital converters (ADCs). Conventional CS, although effective for dealing with one signal, only leverages the intrasignal correlation for reconstruction. This paper develops a decentralized Bayesian reconstruction algorithm for networked sensing systems to jointly reconstruct multiple signals based on the distributed compressive sensing (DCS) model that exploits both intra-and intersignal correlations. The proposed approach is able to address-networked sensing system applications with privacy concerns and/or for a fusion-center-free scenario, where centralized approaches fail. Simulation results demonstrate that the proposed decentralized approaches have good recovery performance and converge reasonably quickly.
Keyword:
Distributed compressive sensing (DCS)
Bayesian inference
signal reconstruction
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期刊

IEEE Transactions on Wireless Communications 封面图
IEEE Transactions on Wireless Communications
IF:
10.7
论文数:
1.3W
被引数:
5.3W

机构

B
Beijing Jiaotong University
学者数:
2.2W
论文数: 1.7W
被引数: 1.2W
U
University of Cambridge
学者数:
7.7W
论文数: 7.1W
被引数: 13.7W
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