Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals

The Internet of Things (IoT) paradigm aims to interconnect a variety of heterogeneous Smart Objects (SO) using energy-efficient methodologies and standard communication protocols. A majority of consumer devices sold today come equipped with wireless LAN and cellular technology to connect with the wo...

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Main Authors: Nithyananthan Poosamani, Injong Rhee
Format: Article
Language:English
Published: European Alliance for Innovation (EAI) 2015-08-01
Series:EAI Endorsed Transactions on Energy Web
Subjects:
Online Access:http://eudl.eu/doi/10.4108/eai.22-7-2015.2260071
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author Nithyananthan Poosamani
Injong Rhee
author_facet Nithyananthan Poosamani
Injong Rhee
author_sort Nithyananthan Poosamani
collection DOAJ
description The Internet of Things (IoT) paradigm aims to interconnect a variety of heterogeneous Smart Objects (SO) using energy-efficient methodologies and standard communication protocols. A majority of consumer devices sold today come equipped with wireless LAN and cellular technology to connect with the world-wide network. To discover Wi-Fi hot spots, there is a need for constant scanning of Wi-Fi radio in these devices and results in significant battery drain. We present PRiSM, a practical system to automatically locate Wi-Fi hotspots while Wi-Fi radio is turned off, by using the statistical characteristics of cellular signals. Cellular signals are received at zero extra cost in mobile devices and hence PRiSM is highly energy-efficient. It is a lightweight client-side only implementation and needs no prior knowledge on floor plans or wireless infrastructure. We implement PRiSM on Android-based devices and show up to 96% of energy savings in Wi-Fi sensing operations which is equivalent to saving up to 16% of total battery capacity, together with an average prediction accuracy of up to 98%.
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spelling doaj.art-e9400bd710c34055b0103f0218439c4d2022-12-22T01:52:52ZengEuropean Alliance for Innovation (EAI)EAI Endorsed Transactions on Energy Web2032-944X2015-08-012511010.4108/eai.22-7-2015.2260071Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular SignalsNithyananthan Poosamani0Injong Rhee1North Carolina State University; npoosam@ncsu.eduNorth Carolina State UniversityThe Internet of Things (IoT) paradigm aims to interconnect a variety of heterogeneous Smart Objects (SO) using energy-efficient methodologies and standard communication protocols. A majority of consumer devices sold today come equipped with wireless LAN and cellular technology to connect with the world-wide network. To discover Wi-Fi hot spots, there is a need for constant scanning of Wi-Fi radio in these devices and results in significant battery drain. We present PRiSM, a practical system to automatically locate Wi-Fi hotspots while Wi-Fi radio is turned off, by using the statistical characteristics of cellular signals. Cellular signals are received at zero extra cost in mobile devices and hence PRiSM is highly energy-efficient. It is a lightweight client-side only implementation and needs no prior knowledge on floor plans or wireless infrastructure. We implement PRiSM on Android-based devices and show up to 96% of energy savings in Wi-Fi sensing operations which is equivalent to saving up to 16% of total battery capacity, together with an average prediction accuracy of up to 98%.http://eudl.eu/doi/10.4108/eai.22-7-2015.2260071wi-fi sensingcellular signalssmart objectslocation fingerprintingenergy-efficiency
spellingShingle Nithyananthan Poosamani
Injong Rhee
Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
EAI Endorsed Transactions on Energy Web
wi-fi sensing
cellular signals
smart objects
location fingerprinting
energy-efficiency
title Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
title_full Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
title_fullStr Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
title_full_unstemmed Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
title_short Wi-Fi Hotspot Auto-Discovery: A Practical & Energy-Aware System for Smart Objects using Cellular Signals
title_sort wi fi hotspot auto discovery a practical energy aware system for smart objects using cellular signals
topic wi-fi sensing
cellular signals
smart objects
location fingerprinting
energy-efficiency
url http://eudl.eu/doi/10.4108/eai.22-7-2015.2260071
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AT injongrhee wifihotspotautodiscoveryapracticalenergyawaresystemforsmartobjectsusingcellularsignals