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Minimal Time and Conflict-Free Schedule for Convergecast in Wireless Sensor Networks

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Executive Summary

A Time Division Multiple Access (TDMA) scheduling technique, which solves collision problem and collects a complete data efficiently, is adopted to assign communication mission into the available time slots. This paper proposes a novel conflict-free convergecast scheduling method to minimize the collecting time in a wireless sensor network. The proposed method first constructs a tree structure in the sensor network and utilizes the tree information to schedule a conflict-free convergecast. The simulated results show that the proposed method can diminish the required timeslots efficiently and achieve a conflict-free convergecast.

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