Sorry, you need to enable JavaScript to visit this website.

facebooktwittermailshare

Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing

Abstract: 

We address the problem of decentralized joint sparsity pattern recovery based on 1-bit compressive measurements in a distributed network. We assume that the distributed nodes observe sparse signals which share the same but unknown sparsity pattern. Each node obtains measurements via random projections and further quantizes
its measurement vector element-wise to 1-bit. We develop two decentralized variants of the binary iterative hard thresholding (BIHT) algorithm where each node communicates only with its one hop neighbors and exchanges its measurement information. This stage is followed by index fusion stage. For first and second algorithms, index fusion is performed at the end of and during BIHT iterations, respectively. The global estimate of the support set in both the algorithms is obtained by fusion of all the final local estimates. Experimental results show that the proposed collaborative algorithms have better (or at least similar) performance compared to the centralized
version.

up
0 users have voted:

Paper Details

Authors:
Thakshila Wimalajeewa, Pramod K. Varshney
Submitted On:
6 December 2016 - 11:54pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Swatantra Kafle
Paper Code:
1123
Document Year:
2016
Cite

Document Files

Kafle.pdf

(399)

Subscribe

[1] Thakshila Wimalajeewa, Pramod K. Varshney, "Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1394. Accessed: Sep. 20, 2020.
@article{1394-16,
url = {http://sigport.org/1394},
author = {Thakshila Wimalajeewa; Pramod K. Varshney },
publisher = {IEEE SigPort},
title = {Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing},
year = {2016} }
TY - EJOUR
T1 - Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing
AU - Thakshila Wimalajeewa; Pramod K. Varshney
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1394
ER -
Thakshila Wimalajeewa, Pramod K. Varshney. (2016). Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing. IEEE SigPort. http://sigport.org/1394
Thakshila Wimalajeewa, Pramod K. Varshney, 2016. Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing. Available at: http://sigport.org/1394.
Thakshila Wimalajeewa, Pramod K. Varshney. (2016). "Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing." Web.
1. Thakshila Wimalajeewa, Pramod K. Varshney. Decentralized Sparsity Pattern Recovery using 1-bit Compressed Sensing [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1394