Figure 7From: Collaborative Event-Driven Coverage and Rate Allocation for Event Miss-Ratio Assurances in Wireless Sensor NetworksThe division of a node's sensing region into four quadrants to analyze its coverage. The derivation of the fields , and for quadrant of a sensor node located at point . The solid and dashed circles represent the sensing regions of the node and its neighboring node, respectivelyThe fields in each quadrant are distinguished by appending the quadrant name to the end of the field nameBack to article page