Energy-efficient WiFi scanning for localization
| Autor: | Hojung Cha, Yohan Chon, Taehwa Choi |
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| Rok vydání: | 2017 |
| Předmět: |
Computer Networks and Communications
Computer science Quality of service ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Real-time computing 020206 networking & telecommunications 02 engineering and technology Energy consumption Computer Science Applications Dwell time Hardware and Architecture 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Mobile device Software Simulation Energy (signal processing) Information Systems Efficient energy use |
| Zdroj: | Pervasive and Mobile Computing. 37:124-138 |
| ISSN: | 1574-1192 |
| Popis: | WiFi radio signals are commonly used for the localization of mobile devices. However, frequent scanning of WiFi reduces user experiences because it consumes significant energy on mobile devices. In this paper, we propose an energy-efficient WiFi scan system for localization. The proposed system preserves the quality of service of each application and minimizes the energy consumption of WiFi scanning. The main idea is that the system adaptively controls the dwell time of beacon-listening in given locations. We predict the number of scanned access points (APs) according to locations and optimize the dwell time of beacon-listening to obtain the minimum number of scanned APs. The evaluation shows that the proposed system saves the energy consumption of WiFi scans by 33.6% and 45.7%, according to the number of scanned APs, while not decreasing the accuracy of localization in indoor and outdoor scenarios. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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