Research on Data Fusion Scheme for Wireless Sensor Networks with Combined Improved LEACH and Compressed Sensing

. 2019 Oct 29;19(21):4704. doi: 10.3390/s19214704

Algorithm 1 ICL-LEACH Algorithm for CH Node Election

1:Require:

N

M

n

r

R

p

G

T_{i - n e w}

d_{\max}

d_{i j}

λ_{1}

λ_{2}

λ_{3}

E_{i - r e s i d u a l}

E_{i - \max}

r a n d_{i}

t y p e_{i} = n o

C H_{i} = n o

l_{o r i g i n a l}

l_{c u r r e n t}

2:Ensure:

M

3:While

1 \leq r \leq R

and

E_{i - r e s i d u a l} > 0

do
4: If

C H_{i} = n o

5: For

i = 1

N

do
6: If

r a n d_{i} \leq T_{i - n e w}

t y p e_{i} = C H

and

C H_{i} = y e s

8: CHnodebroadcasts the selected message to all the nodes
9: CH node uses TDMA to allocate time slots and transmits data
10: Else

t y p e_{i} = C M

and

C H_{i} = n o

11: CM node waits for the broadcast information of CH node
12: CM node waits to allocate a time slot
13: End if
14: nodes enter the stabilization phase
15: End for
16: Else CH node performs data fusion and data transmission
17: End if
18:

r \leftarrow r + 1

19:Endwhile