TDMA-Based Dual-Mode Communication for Mobile Wireless Sensor Networks

Sensors

Ankur Mehta²  Branko Kerkez¹  Steven D. Glaser¹ 

[1] Department of Civil and Environmental Engineering, UC Berkeley, Berkeley, CA 94720, USA; E-Mails:;Department of Electrical Engineering and Computer Sciences, UC Berkeley, Berkeley, CA 94720, USA; E-Mail:

关键词: mobile wireless sensor networks;    WSN;    MAV;    TDMA;    IEEE 802.15.4;   

DOI  :  10.3390/s121216194

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland