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differences between various vendors.
6 FUTURE WORK
Various additions can be easily made in SNMP, such
as exporting results of routing loads of a network
and the possible optimization through dynamic
routing protocols (RIP, BGP, IGMP), or possible
implementation of network watch applications e.g.,
clever water leakage sensors. As for 802.11
protocols, there is a wide area open. This is the
roaming protocol between the transmitting APs. The
802.11 protocol gives some general directions, but
every manufacturer implements its own methods
(most of the times without documentation) making
the possibility of roaming between devices of
different vendors, almost impossible. Moreover, the
positioning finding algorithms can be improved and
expanded specially on the direction of including
smart devices such as telephones, active tags etc.
Augmented Reality (AR) is another very
promising field of interest. For years, AR’s usage
has been restricted to high-end settings. Now,
though, AR is beginning to move into more
consumer settings, and the technology may be ready
to become more commonplace and commercially
successful. AR provides a digital enrichment of the
physical world. More specifically, it projects images
or information that augments what users see. For
example, when users view their surroundings via the
camera, an application displays information about
nearby shops, restaurants, and other landmarks.
According to “Computer” magazine (Vaughan-
Nichols, 2009) “location-based services (LBS)—
used with smart phones and other types of mobile
technology—are a major driving force behind AR's
entering the mainstream”.
The NetArgus can be firstly used for Finding the
Physical Position of a Transmitting 802.11 Station.
More specifically, with the use of any kind of vector
maps (e.g. Google Earth), or any kind of DEM maps
with Latitude & Longitude information, measuring
up the signal strength at three random spots (Fig. 5),
we can determine the co-ordinates of the
broadcasting station in question.
Figure 5: Triangulation of a known Target AP.
Secondly, NetArgus can be used for Mapping
and Tagging the Signal Level of all the Transmitting
Surrounding Stations in a given space (Fig.6), where
several stations are broadcasting. This can lead to an
optimization of the signal coverage through the
physical re-location of the APs towards an optimum
hexagon cell layout.
Figure 6: Empty space 802.11 signal coverage.
REFERENCES
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