Efficient Data Collection Method in Sensor Networks

Table 1

Symbols and meanings.

Symbol	Interpretation
	Random observation matrix
x	Raw data
y	Compressed data
	Sparse basis matrix
	Sparse coefficient
k	Sparse value
A,	Perception matrix
m	Number of paths
n	Number of nodes
	Correlation coefficient
t	Length of random path
	Path W starting from u
deg()	Degree of node
pre()	Previous node of node
	Vertex set
	Edge set
(, E)	Undirected graph with and E as parameters
R, r	Node communication radius