Wireless Sensor Networks (WSN) have recently been in the limelight for many domains. WSN are useful in data collection, event detection or entity tracking applications. The characteristics of sensor networks have imposed various restrictions on their system designs. Since sensor nodes usually are developed by low-cost hardware, one major challenge in the development of many sensor-network applications

is to provide high-security features with limited resources. In this paper, we propose a path generation framework with deadline considerations for real-time query processing.

To meet the deadline, the framework will assign the time budget to the routing path, and then, derive a feasible path with the assigned time budget.