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| Author(s): |
Roberto Sadao Yokoyama
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Instituto de Ciências Matemáticas e de Computação (ICMC/SB) |
| Defense date: | 2014-07-11 |
| Examining board members: |
Edson dos Santos Moreira;
Juliana Freitag Borin;
Kalinka Regina Lucas Jaquie Castelo Branco;
Jose Augusto Suruagy Monteiro;
Alex Sandro Roschildt Pinto
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| Advisor: | Edson dos Santos Moreira |
| Abstract | |
Vehicular networks play an important role in intelligent transportation systems. Through wireless communication, vehicles can disseminate information to improve transportation safety and efficiency, and provide entertainment applications. Beaconing, first proposed for safety applications, is used in this study as one of the ways to disseminate information, in which the source node adds information to the beacon frame, which is finally propagated in broadcast. Most studies in the literature focus on beaconing performance and optimization using simulations. This thesis explores beaconing strategies, applying experimental methods to validate and evaluate beaconing in real environments, solving problems related to cooperative location applications and vehicles positioning. A vehicular network testbed was developed to perform traditional tests, such as the performance of the communication parameters and to specifically test novel protocols that transmit additional information in the beacons. The key contributions are: i) an application to infer the distance between vehicles via the radio frequency signal received; ii) location of points of interest for drivers and passengers; and iii) location verification of vehicle and anonymous beacon broadcast. In brief, this study demonstrated, through experiments in real environments, that beacon strategies can be successfully applied to problems of location and positioning in vehicular networks (AU) | |
| FAPESP's process: | 09/17720-0 - Autonomous systems for communication in UAVs using DTN. |
| Grantee: | Roberto Sadao Yokoyama |
| Support Opportunities: | Scholarships in Brazil - Doctorate |