1 Introduction
2 Related work
3 Network model and algorithm description
3.1 Network model
3.2 Determination of the candidate CHs
-
E{# C H s}=k.
-
A node with more idle channels is more likely to become a CH.
3.3 Determination of CHs
3.4 Clusters establishment
3.5 Stabilization phase
4 Experimental results and analysis
Parameter
|
Value
|
---|---|
Parameter scene range | 200 m × 200 m |
Position of sink | (250, 100) |
CRSN node number | 200 |
Primary user | 5 |
Available channel | 5 |
Initial energy of | |
Cognitive sensor node | 0.5 J |
E
elec
| 50 nJ/bit |
ε
fs
| 10 pJ/bit/ m2
|
ε
mp
| 0.0013 pJ/bit/ m2
|
d
0
| 87 m |
Data package size | 2,000 bits |