the near me area network nan

The Near-Me Area Network

Seminar By,

NISHANT NAIR

(NAN)

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).

© Near- Me Area Network for NISHANT NAIR

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.


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

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.


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.


NAN Formation

System Architecture : The network formed of those devices with both a

GPS receiver and internet connection


Existing Prototypes And Application

WhosHere

Loopt

Handshake

Fire Eagle

WhozThat


WhosHere

helps users meet people nearby with similar interests.


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


Loopt

Loopt lets users to see where and how far their friends are on a detailed map


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.


Yahoo’s Fire Eagle

Fire eagle is an online central server that stores the current location of the users


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.


WhozThat

WhozThat facilitate mobile social networking


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.


Challenges For Future Nan Application

Representing a place.

Identifying a position.

NAN Enabled devices.

Implementation issues.

Privacy consideration.


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.


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.


NAN Enabled devicesGPS supporting Mobile devices

NAN Enabled Mobile Phones.

3G support for mobiles.


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


AdvantagesMake Social life easier

communication among wireless devices in different

network infrastructures.

focuses on two way communication among people

within certain proximity.


DisadvantagesAvailability and cost of NAN capable

devices.

GPS is not well implemented in indoors and urban areas.

Privacy considerations


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.


the near me area network nan

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