The document discusses Near-me Area Network (NAN), which focuses on two-way communication between wireless devices in close proximity, such as smartphones. There are two types of NAN: closed NAN uses location databases to connect devices on the same mobile carrier network, while global NAN uses GPS and internet connectivity to update locations to a central server. Examples of NAN applications include WhosHere and Loopt, which allow users to find nearby people with shared interests. NAN makes social interactions and communication easier but implementation challenges include limitations of GPS indoors and low availability of NAN technology.

1. TOPIC:NEAR-ME AREA NETWORK.

2. There are different computer network types such as:
 LAN(Local Area Network).
 MAN(Metropolitan Area Network).
 WAN(Wide Area Network).
 CAN(Campus Area Network).
 SAN(Storage Area Network).
 HAN(Home Area Network).
 PAN(Personal Area Network).
 BAN(Body Area Network).
 NAN(Near-me Area Network).

3.  It is a computer network that focuses on
communication between wireless devices such
as (smart phones, PDA’s etc.).
 It focuses on two-way communication among
people with certain proximity to each other.

4. There are two types of NAN:
1. Closed NAN:
 It is formed between devices in same mobile
carrier network.
 GPS is not necessary.
 Carrier need to maintain the database of
locations.

5. 2. Global NAN:
 Formed among any wireless devices.
 GPS locator and internet connectivity both are
necessary.
 The location is updated to a central server in
the internet.

6.  WhosHere.
 Loopt.
 Hand shake.
 Fire Eagle.
 WhozThat.

7.  WhosHere: It shows the user closest people
who match their interests.
 Loopt: It will regularly update its own
location to the server. It’s operation is simple.

8.  To send messages to people nearby.
 To find out the people in area.
 To send images to the people.
 To send contact information without typing.

9.  Provides information about friends to the user.
 Restaurants, petrol pumps etc. can be found
using NAN.
 For that, mobile devices must possess
bluetooth or Wi-Fi and connection to the
Internet.

10.  Make social life easier.
 Makes two-way communication easier.

11.  GPS is not well implemented in indoors
and urban areas.
 Availability of NAN is rare.

12. THANK YOU.