Efficient Compressed Sensing Reconstruction Algorithm for Nonnegative Vectors in Wireless Data Transmission

Algorithm 3

Two-stage reconstruction algorithm.

	Input: A, y, and the error threshold ε
(1)	Perform the IP algorithm using y and A
(2)	If the IP algorithm converges then
(3)	Obtain the estimated signal vector
(4)	else
(5)	Construct D, , , , and based on the outputs of the IP algorithm
(6)	Compute
(7)	Perform the OMP algorithm using and
(8)	Obtain the estimated signal vector from and
(9)	end
(10)	Output