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Open Access Publications from the University of California

TDMA-based dual-mode communication for mobile wireless sensor networks

  • Author(s): Mehta, A
  • Kerkez, B
  • Glaser, SD
  • Pister, KSJ
  • et al.

Small highly mobile robots, and in particular micro air vehicles (MAVs), are well suited to the task of exploring unknown indoor environments such as buildings and caves. Such a task imposes a number of requirements on the underlying communication infrastructure, with differing goals during various stages of the mission. This work addresses those requirements with a hybrid communications infrastructure consisting of a stationary mesh network along with the mobile nodes. The combined network operates in two independent modes, coupling a highly efficient, low duty cycle, low throughput mode for routing and persistent sensing with a burst mode for high data rate communication. By strategically distributing available frequency channels between the mobile agents and the stationary nodes, the overall network provides reliable long-term communication paths while maximizing data throughput when needed. © 2012 by the authors; licensee MDPI, Basel, Switzerland.

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