INTRODUCTION of adhoc network, What is an Adhoc Network? Types of Adhoc Networks, Challenges with Adhoc Networks

1. 2024OD031
Adhoc
Networks
By : sobika sk
201EC256

2. What is an
Adhoc
Network?
• An Adhoc network is a decentralized
type of wireless network, where
each device in the network acts as
both a client and a server. This
means that devices can
communicate with each other
without the need for a central
access point or router. Adhoc
networks are also known as 'mesh'
networks because of their
interconnected nature.

3. How does an Adhoc Network work?

4. • An Adhoc Network is a decentralized wireless network that does not rely on a
pre-existing infrastructure, such as routers or access points. Instead, each node in
the network serves as both a transmitter and receiver, relaying data to other
nodes in the vicinity. This allows for greater flexibility and mobility compared to
traditional networks, which require fixed infrastructure.
• One of the key advantages of Adhoc Networks is their ability to operate in
environments where traditional networks are impractical or impossible to set up.
For example, in disaster situations where communication lines have been
destroyed, Adhoc Networks can be quickly established using mobile devices such
as smartphones and laptops. Additionally, Adhoc Networks are ideal for military
operations, where mobility and flexibility are crucial.

5. IMPORTANCE
• The importance of Adhoc networks
lies in their ability to provide
communication in situations where
traditional networks are unavailable
or impractical. For example, in
disaster-stricken areas where
infrastructure has been damaged,
Adhoc networks can be set up
quickly to provide communication
between rescuers and victims. In
military operations, Adhoc
networks can be used to establish
communication between troops in
remote locations.

6. Types of Adhoc
Networks
• There are two types of Adhoc Networks:
infrastructure-based and infrastructureless.
Infrastructure-based Adhoc Networks use existing
infrastructure such as Wi-Fi access points or cellular
towers to create a network. These networks are
commonly used in urban areas where there is an
abundance of infrastructure. On the other hand,
infrastructureless Adhoc Networks do not require any
pre-existing infrastructure and can be set up anywhere.
These networks are commonly used in rural areas or
disaster-stricken regions where infrastructure is limited
or non-existent.

7. TYPE 2
• Another type of Adhoc Network is
the mobile Adhoc Network
(MANET). MANETs are self-
configuring networks of mobile
devices connected by wireless
links. These networks are
commonly used in military
operations, emergency response
situations, and outdoor events
where traditional communication
methods may not be available.

8. Challenges
with Adhoc
Networks
• One of the major challenges with Adhoc
Networks is the lack of centralized control.
Unlike traditional networks, Adhoc
Networks are decentralized and rely on
individual nodes to communicate with each
other. This can lead to issues such as
network congestion, data loss, and security
vulnerabilities.
• Another challenge is the limited range of
Adhoc Networks. Since these networks rely
on individual nodes to relay data, the range
of the network is limited by the range of the
individual nodes. This can be a problem in
large-scale deployments where multiple
nodes may be required to cover a large
area.

9. conculsion
• The error-detection strategies employed in
different approaches can be categorized as
network detection or end node detection.
Approaches such as TCP-Feedback, ELFN-
based, ATCP, and NRED rely on network
signaling, including neighborhood signaling in
the case of NRED, to identify and address path
anomalies. Each approach has its own
advantages and disadvantages, and an ideal
solution would combine the strengths of both
strategies. However, NRED's limitation is that it
detects and handles problems within a specific
neighborhood and does not propagate the
information further.
•