Researchers at IMDEA Networks invent the
simplest solution available today to swiftly build a mobile wireless
positioning system in a new indoor environment. Unlike other systems, it
requires neither manual and costly offline pre-calibration nor any
special hardware.
IMDEA Networks Institute Institute announces the successful
completion of the research project "Opportunistic Timing Signals for
Pervasive Mobile Location." It has accomplished remarkable scientific
advances in the optimization of pervasive mobile location services,
bringing nearer to hand the evolution of mobile wireless connectivity
towards a seamless integration of navigation and network communications.
Dr. Domenico Giustiniano, a Research Assistant Professor at IMDEA
Networks, a Madrid-based research institute, has led the scientific
work, which was financed by the Swiss Confederation represented by
Armasuisse -- Science and Technology.
Despite the increasing interest in the area of mobile indoor
localization, the positioning capability of Wireless Local Area Network
(WLAN)-based mobile devices does not meet the joint goals of high
accuracy and fast response time, given the constraint of using a
commodity smartphone as target device.
To solve this, the project has built an approach that uses solely
Time-of-Flight (ToF) measurements and relies on software upgrades of
simple commercial off-the-shelf 802.11 chipsets that can be integrated
in any access point (AP). This innovative solution not only reduces
system implementation costs by using WiFi six dollar chipsets (used, for
instance, by very famous Cisco APs) to collect and filter measurements,
but also the novel filtering technique applied requires just a few
samples to estimate the distance range.
To ensure its working capability, the system has been tested across
different and heterogeneous setups and testbeds (including scenarios
with strong indoor multipath), resulting in a median error of the
distance of merely 1.7 − 2.4 m. Furthermore, it has also participated in
indoor localization competitions achieving comparatively positive
results. Amongst the advantages of the proposed solution are its
cost-effectiveness (it runs on commodity WiFi hardware) and its ease of
implementation (it is the simplest solution available today to swiftly
build a positioning system in a new indoor environment). Unlike other
systems, it requires neither manual and costly offline pre-calibration
nor any special hardware.
A new research project called MATISSE has been launched to build on
the success of IMDEA Networks' former research initiative in the area of
Pervasive Mobile Localization. MATISSE will expand the scope of the
prior project to include a new specialist research topic: Collaborative
Wideband Spectrum Sensing Systems.
Knowledge about usage of the spectrum data and about the user's
location is essential to build any communication protocol and service.
With this in mind, MATISSE has a two-fold objective. On the one hand, it
aims to improve current poor knowledge about usage of the
electro-magnetic spectrum by introducing cyber-physical nodes that will
be capable of monitoring the wideband spectrum at a very large scale,
such as cities and nations. On the other hand, it will devise and build a
pervasive localization system that is able to pin-point the position of
a mobile device regardless of the environmental conditions.
The project "Opportunistic Timing Signals for Pervasive Mobile
Location" operated from April 2014 to March 2015 and MATISSE was
launched immediately after and until March 2016. Armassuise -- Science
and Technology continues to provide funding to complete this work.
Story Source:
The above post is reprinted from
materials provided by
IMDEA Networks Institute.
Note: Materials may be edited for content and length.
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