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Notation and their description.
| Notation | Description |
|---|---|
| G | Set of all sensor nodes |
 |
Sensor node |
| W | Width of the network |
| H | Height of the network |
 |
Coverage threshold |
 |
Distance between sensor  and point P
|
 |
Coverage probability of P by 
|
 |
Sensing range of sensor |
 |
Uncertainity margin in 
|
 |
Coverage ratio |
 |
Minimum distance between the sensors |
 |
Coverage probability when P is covered by multiple sensors |
