the near me area network nan
TRANSCRIPT
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The Near-Me Area Network
Seminar By,
NISHANT NAIR
(NAN)
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Introduction
The different types of communication networks known now are
LAN [LOCAL AREA NETWORK]MAN [METROPOLITAN AREA NETWORK]WAN [WIDE AREA NETWORK]PAN [PERSONAL AREA NETWORK]
Due to the increasing popularity of location-
enabled mobile devices, here comes
Near-me area Network (NAN).
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What is NAN ? Is a logical communication network. Built on the top of existing physical network infrastructures. Focuses on communication among wireless devices in close proximity.
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In LANs, • the devices are in the same network segment • share the same broadcast domain
The devices in a NAN • can belong to different proprietary network infrastructures
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Typ
es of
NA
N CLOSED NAN
Formed between devices in the same mobile carrier network.
GPS is not necessary.
Location is identified using triangulating process.
Carrier need to maintain the database of locations.
Advantages are limited.
GLOBAL NAN
Formed among any wireless device.
The device need to have both GPS locator and internet connectivity.
The location is updated to a central server in the internet.
Number of NAN application can be developed.
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The Emergence Of NAN
A mother lost her son and she sends out his picture to the other people in
the NAN network so that they can help him.
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NAN Formation
System Architecture : The network formed of those devices with both a
GPS receiver and internet connection
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Existing Prototypes And Application
WhosHere
Loopt
Handshake
Fire Eagle
WhozThat
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WhosHere
helps users meet people nearby with similar interests.
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Features
WhosHere shows the user the closest people who match their
interests users can text message each other within WhosHere
itself Eliminates the need to give out phone numbers,
email or IP addresses
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Loopt
Loopt lets users to see where and how far their friends are on a detailed map
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FeaturesLoopt
It will regularly update its own location to the server.
Users can see where and how far away their friends are. see their friends on a detailed map. get alerts when friends are nearby.
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Yahoo’s Fire Eagle
Fire eagle is an online central server that stores the current location of the users
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FeaturesDevoloped by yahoo.com
Stores location info of users
Other sites and apps access it to provide services.
Apps use a person’s location to provide personalized news and discover events or activities within 1,000 feet or closer.
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WhozThat
WhozThat facilitate mobile social networking
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FeaturesIntegrates online social networks like
facebook and MySpace into mobile devices.
Provide info about the friends and people around the user.
Mobile devices must possess both Bluetooth or Wi-Fi and a connection to the Internet.
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Challenges For Future Nan Application
Representing a place.
Identifying a position.
NAN Enabled devices.
Implementation issues.
Privacy consideration.
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Representing a placeLatitude/longitude pair can define a
precise point on earth.
More abstract concepts to express locations is sometimes more appropriate.
Those are sometimes more appropriate for NAN apps that aim at comm. among people in a particular location.
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Identifying a positionGPS accuracy is affected by the
environmental conditions.
Noise or interference near the receiver can create an error.
Presence of physical objects can block sight from satellite.
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NAN Enabled devicesGPS supporting Mobile devices
NAN Enabled Mobile Phones.
3G support for mobiles.
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Implementation issuesSoftware Platform must provide the proper
APIs to access info from GPS receiver.
Application-programming interfaces for different platforms need to communicate with no error
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AdvantagesMake Social life easier
communication among wireless devices in different
network infrastructures.
focuses on two way communication among people
within certain proximity.
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DisadvantagesAvailability and cost of NAN capable
devices.
GPS is not well implemented in indoors and urban areas.
Privacy considerations
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Conclusion There is rapid development of mobile broadband technologies. Mobile devices that are both location- and Internet- enabled will become prevalent. That will positively boost NAN applications popularity. Many exciting opportunities exist for the future design of NAN applications. It could become new modes of location-enabled mobile devices.
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