| The transmission range of any given node. |
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| The sensing range of any given node. |
| The sensing region of any given node. |
| An event to be sensed by the wireless sensor network. |
| The set of sensor nodes in any given cluster. |
| The number of sensor nodes in any given cluster. |
| sensor node in any given cluster where . |
Area | Area of any given region . |
| The entropy of any given random variable [34]. |
| The number of bits needed to represent a sensor reading. If the sensor source at any given node is denoted by is then. |