Power Efficient Vehicular Ad Hoc Networks

Audrey Knowlton (New York institute of Technology), Sterling Holcomb (Georgia Southern University), Juan Guerra (University of California, Merced)

Communication between vehicles is a growing platform for transferring safety information. The highly mobile nature of Vehicle to Vehicle communications causes rapid changes in topologies and propagation conditions. Since the advent of Vehicular Ad-Hoc Networks, over fifty routing protocols with attendant topologies have been proposed for these networks. These protocols can be simulated successfully; however, some use an excessive amount of power. Our approach seeks to reduce power consumption with a simplified routing protocol. it also aims to improve topology by dimensional reduction; each car is aware of only two types of connections, up road and down-road. We also propose a fuzzy logic algorithm that vehicles use to predict the location of up-road cars in order to form links to the nearest relevant vehicles without using a great deal of power. Once these links have been established, up-road vehicles will send data down-road for a length of time based on the relative speed of the two vehicles. After this time period has expired the down- road vehicle must request additional information, restarting the timer. Data sent through the network will include information on up-road vehicles and when required, messages such as accident, alerts, and traffic warnings. This research describes an approach to VANETs that reduces power usage by simplifying the network topology and predicting node locations during the linking process.

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Holcomb, Knowlton, Guerra, publish at WInnComn

Sterling Holcomb, Audrey Knowlton, and Juan Guerra published results of their research project in WinnComm'16, the Wireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio, in Reston, VA. Their paper, titled "Power Efficient Vehicular Ad Hoc Networks" was a new approach for Vehicular AdHoc Networks (VANETS) that represents a significant reduction in power use. This benefit enables more vehicles to communicate simultaneously. Through simulation, students showed that their approach to VANETs maintains its update frequency despite bumper to bumper traffic and uses two to five orders of magnitude less power than an IEEE 802.11 network with clustering and 1 mW transmit power. Overall, the network performed well and is a viable improvement to the standard.

The paper was presented in the technical track, "Top 10 Most Wanted Wireless Innovations."

The bibliographic information for the paper is below, or can be accessed at http://csl.arizona.edu/content/power-efficient-vehicular-ad-hoc-networks

S. Holcomb, Knowlton, A., Guerra, J., Asadi, H., Volos, H., Sprinkle, J., and Bose, T., "Power Efficient Vehicular Ad Hoc Networks", WInnComm. Reston, VA, pp. 26-31, 2016.

Georgia Southern Student Spends Summer at the Controls of a Driverless Car

Sterling Holcomb worked to improve vehicle-to-vehicle communications while reducing power consumption of communications systems.

UC Merced Student Spends Summer at the Controls of a Driverless Car

Juan Guerra worked to improve vehicle-to-vehicle communications while reducing power consumption of communications systems.

NYIT Student Spends Summer at the Controls of a Driverless Car

Audrey Knowlton worked to improve vehicle-to-vehicle communications while reducing power consumption of communications systems.

College Students From Diverse Backgrounds Experience UA Research

TUCSON, Arizona -- Visiting undergraduate students, including some who are the first in their families to attend college, experienced hands-on research---and hands-off driving---in a National Science Foundation program at the University of Arizona this summer. They will demonstrate their driverless tech research projects on the UA campus Aug. 11.

Power Efficient Vehicular Ad Hoc Networks

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