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We consider the problem of mitigating a highly varying wireless channel between a transmitting ground node and receivers on a small, low-altitude unmanned aerial vehicle (UAV) in a 802.11 wireless mesh network. One approach is to use multiple transmitter and receiver nodes that exploit the channel's spatial/temporal diversity and that cooperate to improve overall packet reception. We present a series of measurement results from a real-world testbed that characterize the resulting wireless channel. We show that the correlation between receiver nodes on the airplane is poor at small time scales so receiver diversity can be exploited. Our measurements suggest that using several receiver nodes simultaneously can boost packet delivery rates substantially. Lastly, we show that similar results apply to transmitter selection diversity as well.
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H. T. Kung
National Taichung University of Science and Technology
Chit-Kwan Lin
Intel (United States)
Tsung-Han Lin
National Chung Hsing University
Harvard University
Harvard University Press
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Kung et al. (Wed,) studied this question.
synapsesocial.com/papers/6a1c03314ebd09f3dfa95593 — DOI: https://doi.org/10.1109/glocomw.2010.5700251