Abstract
Many disasters have shown the critical need for reliable voice communication for mobile users. Low power ad hoc wireless networks have become a promising solution in emergency scenarios because of their low cost and portability. In order to increase communication amongst moving emergency personnel and disaster victims, we have developed a novel convergecast voice streaming system that guarantees robust voice quality in a low power mobile wireless network. The system integrates routing and mobility-aware admission control along with voice compression adjustment to ensure the quality of voice streams. The system is evaluated using Arduino Due micro-controllers with XBee 802.15.4 radios. Our results show that our system can adequately adapt to changing network and routing conditions to deliver sufficient voice quality by maintaining a certain number of concurrent voice streams. To the best of our knowledge, this work is the first complete system for quality-aware voice streaming in mobile lower power wireless networks.
This work is supported in part by NSF grants ECCS-1646576 and ECCS-1646562.
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© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Adkins, M., Han, Q., Pasricha, S. (2019). Quality-Aware Voice Convergecast in Mobile Low Power Wireless Networks. In: Yin, Y., Li, Y., Gao, H., Zhang, J. (eds) Mobile Computing, Applications, and Services. MobiCASE 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 290. Springer, Cham. https://doi.org/10.1007/978-3-030-28468-8_16
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