Algorithm 1: Main Procedure of the Proposed Scheme

Input: Reconstruction quality requirement, time of each data gathering period T

Output: Network sensed data X in epoch Ti

1 Initiate the network settings, flag = 1

2 If clock interrupt of Ti is received do

3 generate feed-back packet and propagate it to the network

4 ΔM measurements are propagated to the sink node through designed routing architecture

5 the sink node receives and adds these projections into projection pool and gets reconstruction result $\widehat{X}$

6 evaluate $\widehat{X}$

7 If stopping rule is achieved then

8 flag = 0

9 Ifend

10 While flag = 0

11 Ifend

12 Return $\widehat{X}$