Title
Distributed quantization for compressed sensing
Abstract
We study distributed coding of compressed sensing (CS) measurements using vector quantizer (VQ). We develop a distributed framework for realizing optimized quantizer that enables encoding CS measurements of correlated sparse sources followed by joint decoding at a fusion center. The optimality of VQ encoder-decoder pairs is addressed by minimizing the sum of mean-square errors between the sparse sources and their reconstruction vectors at the fusion center. We derive a lower-bound on the end-to-end performance of the studied distributed system, and propose a practical encoder-decoder design through an iterative algorithm.
Year
DOI
Venue
2014
10.1109/ICASSP.2014.6854844
Acoustics, Speech and Signal Processing
Keywords
DocType
Volume
compressed sensing,correlation methods,mean square error methods,vector quantisation,VQ encoder-decoder pairs,compressed sensing measurement,correlated sparse sources,distributed coding,distributed quantization,encoding CS measurements,end-to-end performance,fusion center,iterative algorithm,joint decoding,mean-square error sum,reconstruction vectors,studied distributed system,vector quantizer,Compressed sensing,correlation,distributed source coding,mean square error,vector quantization
Journal
abs/1404.7666
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
18
3
Name
Order
Citations
PageRank
Amirpasha Shirazinia1626.90
Saikat Chatterjee2245.32
Mikael Skoglund31397175.71