Applications of ad hoc wireless networks

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1) Military Application

Adhoc wireless networks can be very useful in establishing communication among a group of soldiers for tactical operations.

Setting up of a fixed infrastructure for communication among group of soldiers in enemy territories or in inhospitable terrains may not be possible. In such a case, adhoc wireless networks provide required communication mechanism quickly.

The  primary  nature  of  the  communication  required  in  a  military  environment  enforces  certain important requirements on adhoc wireless networks namely, Reliability, Efficiency, Secure communication & Support for multicast routing.

2) Collaborative & Distributed computing

Adhoc wireless network helps in collaborative computing, by establishing temporary communication infrastructure for quick communication with minimal configuration  among  a group  of people in  a conference.

In distributed file sharing application reliability is of high importance which would be provided by adhoc network.

Other  applications  such  as  streaming  of  multimedia  objects  among  participating  nodes  in  ad  hoc wireless networks require support for soft real-time communication

Devices used for such applications could typically be laptops with add -on wireless interface cards, enhanced personal digital assistants (PDAs) or mobile devices with high processing power

3) Emergency Operations

Ad hoc wireless networks are very useful in emergency operations such as search and rescue, crowd control and commando operations

The major factors that favour ad hoc wireless networks for such tasks are  self-configuration of the system with minimal overhead, independent of fixed or centralised infrastructure, the freedom and flexibility of mobility, and unavailability of conventional communication infrastructure.

In environments, where the conventional infrastructure based communication facilities are destroyed due to a war or due to natural calamities, immediate deployment of adhoc wireless networks would be a good solution for co-ordinating rescue activities.

They require minimum initial network configuration with very little or no delay

4) Wireless Mesh Network

Wireless  mesh  networks  are  adhoc  wireless  network  that  are  formed  to  provide  an  alternate communication infrastructure for mobile or fixed nodes/users, without the spectrum reuse constraint

& requirement of network planning of cellular network.

It provides many alternate paths for a data transfer session between a source & destination, resulting in quick reconfiguration of the path when the existing path fails due to node failure.

Since the infrastructure built is in the form of small radio relaying devices, the investment required in wireless mesh networks is much less than what is required for the cellular network counterpart .

The possible deployment scenarios of wireless mesh networks include: residential zones, highways, business zones, important civilian regions and university campuses

Wireless mesh networks should be capable of self-organization and maintenance.

It operates at license-free ISM band around 2.4 GHz & 5 GHz.

It is scaled well to provide support to large number of points.

Major advantage is the support for a high data rate, quick & low cost of deployment, enhanced services, high scalability, easy extendability, high availability & low cost per bit.


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