MANET is a type of mobile ad hoc network that is self-configuring and infrastructureless, allowing mobile devices to connect without wires. Nodes in a MANET can join or leave the network freely, making the network topology dynamic. Each node acts as both a host and router to forward data. MANETs support multi-hop routing to allow communication between nodes out of direct wireless range. They offer advantages like scalability, low cost, and access to information anywhere but also face challenges like variable wireless link quality, low data rates, and partitioned networks due to node movement.

1. MANET

2. DEFINITION
A mobile ad hoc network (MANET) is a
continuously self-configuring, infrastructure-
less network of mobile devices
connected without wires.
Each device in a MANET is free to move
independently in any direction, and will
therefore change its links to other devices
frequently.

3. DIAGRAM

4. CHARACTERISTICS OF MANET
1) In MANET, each node act as both host and
router. That is it is autonomous in behavior.
2) The nodes can join or leave the network
anytime, making the network topology
dynamic in nature.
3) Mobile nodes are characterized with less
memory, power and light weight features.

5. CHARACTERISTICS OF MANET
4) All nodes have identical features with similar
responsibilities and capabilities and hence it
forms a completely symmetric environment.
5) When a source node and destination node for
a message is out of the radio range, the MANETs
are capable of multi-hop routing.

6. PROS OF MANET
1) Scalable—More number of nodes can be
formed.
2) The network can be set up at any place and
time.
3) Less expensive as compared to wired
network.
4) They provide access to information and
services regardless of geographic position.

7. LIMITAIONS OR CHALLENGES OF
MANET
1) The wireless link characteristics are time-
varying in nature
(i.e.) There are transmission impediments
like fading, path loss, blockage and interference
that adds to the susceptible behavior
of wireless channels.

8. LIMITAIONS OR CHALLENGES OF
MANET
2) Limited range of wireless transmission.
(i.e.) The data rates are low when
compared to the wireless networks.

9. LIMITAIONS OR CHALLENGES OF
MANET
3) Packet losses due to errors in transmission
(i.e.) MANETs experience higher packet
loss due to factors such as hidden terminals that
results in collisions, interference, frequent
breakage in paths caused by mobility of nodes,
increased collisions due to the presence of
hidden terminals problems.

10. LIMITAIONS OR CHALLENGES OF
MANET
4) Frequent network partitions
The random movement of nodes often leads to
partition of the network. This mostly affects the
intermediate nodes.

11. LIMITAIONS OR CHALLENGES OF
MANET
5) Limitations of Mobile Nodes
The mobile nodes have short Battery Life

12. APPLICATIONS OF MANET
1) Military
Ad-Hoc networking would allow the military to
take advantage of technology to maintain an
information network between the soldiers,
vehicles, and military information head quarter.

13. APPLICATIONS OF MANET
2) Rescue Operation
Ad hoc can be used in emergency/rescue
operations for disaster relief efforts, e.g. in fire,
flood, or earthquake.

14. APPLICATIONS OF MANET
3) Business Work
Whenever any emergency meeting is planned
outside the office exchange of information on a
given project is made possible by means of
MANET.

15. APPLICATIONS OF MANET
4) Classroom and Conference
Ad-Hoc networks can autonomously link an
instant and temporary multimedia network
using notebook computers to spread and share
information among participants e.g. conference
or classroom.

16. APPLICATIONS OF MANET
5) Personal Area Network
A personal area network is a short range,
localized network where nodes are usually
associated with a given person.