Paper Info
Title
Characteristics of a large-scale WiFi radiomap and their implications in indoor localization
Abstract
Due to the wide-spread of mobile devices such as smartphones, localization at both indoors and outdoors constitute a critical component in numerous location-based services. This paper considers indoor localization using WiFi fingerprints (FPs), which is a set of received signal strength (RSS) values from observable access points (APs). Typically, FPs are collected at several locations in a venue to create a WiFi radiomap, which is then used to estimate the location of a client device. However, most of previous studies evaluated their indoor localization algorithms and mechanisms on small-scale venues such as academic buildings, leaving us an important and practical question whether they perform well in large-scale environments with hundreds or thousands of APs. We surveyed a large-scale venue of Gangnam Coex underground mall in downtown Seoul, Korea, which might be sufficient to make most of existing solutions to suffer. This paper characterizes the radiomap of Gangnam Coex while highlighting the differences with that of a typical, small-scale academic building to facilitate the design of indoor localization algorithms for large-scale venues.
Year
DOI
Venue
2013
10.1109/NOF.2013.6724506
NOF
Field
DocType
ISSN
Computer science,Downtown,Computer network,Mobile device,Signal strength,Wireless lan,RSS
Conference
2377-8652
Citations 
PageRank 
References 
1
0.36
0
Authors
5
Name
Order
Citations
PageRank
Sangwook Bak110.69
Seokseong Jeon262.60
Young-joo Suh347858.07
Chansu Yu4204.66
Dong-Soo Han532541.96