A Qos-Oriented Distributed Routing

A QOS-ORIENTED DISTRIBUTED ROUTING

PROTOCOL FOR HYBRID WIRELESS NETWORKS

ABSTRACT:

A wireless communication gains popularity with devoting with support to real time transmission with quality of service required for wireless applications Hybrid wireless networks integrates a mobile Wireless Ad_Hoc Network(MANET) and wireless infrastructure has proved a better alternative next generation wireless networks.

By directly adopting resource reservation based QOS routing for MANET in a hybrid network Inherit invalid reservation and race condition problems in MANET.

QOS transforms the packet routing problem to a resource scheduling problem QOS incorporates five routing algorithm,

QOS guaranteed neighbor selection algorithm to meet transmission delay requirement

A distributed packet scheduling algorithm reduce the further transmission delay

A mobility based segment resizing algorithm that adaptively adjusts segment size.

A traffic redundant elimination algorithm to increase transmission throughput.

A data redundancy based elimination algorithm top eliminate the redundant data to further improve the transmission QOS.

QOS provide high performance in terms of overhead, transmission delay Mobile resilience and scalability.

Hybrid wireless network has proved a better network structure for next generation of wireless networks and help to tackle the stringent end to end QOS requirement for different applications.

EXISTING SYSTEM:

There are number of protocols available to improve the QoS parameters in wireless networks by removing the nodes that consume and waste resources.
QoS routing requires not only to ﬁnd a route from a source to a destination, but a route that satisﬁes the end- to-end QoS requirement, often given in terms of bandwidth or delay.
Different MAC layers have different requirements for successful transmissions, and a QoS routing protocol developed for one type of MAC layer does not generalize to others easily.
Delivering end-to-end service quality in mobile Ad-hoc networks is intrinsically linked to the performance of the routing protocol because new routes or alternative routes between source-destination pairs need to be periodically computed during ongoing sessions.
Most of the approaches address a particular layer in OSI stack.
However, there is no detailed research over the effects of packet dropping nodes on the network.

PROPOSED SYSTEM:

In the proposed approach, we thoroughly analyses the effects of packet dropping nodes on the network QoS parameters and present our observations.
In this project , we will analyses the following QoS parameters for wireless Ad-hoc networks:

delay

end-end delay

throughput

energy

packet delivery ratio

route cost

The above QoS parameters will be analyzed under two scenarios:
Scenario 1: The network is in normal condition. That is, there is no presence of packet dropping nodes in the network. The network, in this case, can only be affected by the physical layer problems like link failure, signal drop, interference etc.
Scenario 2: The network in this case is in abnormal condition. There is a presence of one or more packet dropper nodes in the network. As a result, the network QoS parameters get affected adversely.
We will analyses the QoS parameters in both the above scenarios and present our observations in this research.
In general the following conditions suggest that the network is in normal state:

delay : it must be low

end-end delay : it must be low

throughput: it must be high

energy: it must be high

packet delivery ratio: it must be high

route cost: it must be low

System Specification

Hardware Requirements:

•System: Pentium IV 2.4 GHz.

•Hard Disk : 40 GB.

•Floppy Drive: 1.44 Mb.

•Monitor : 14’ Colour Monitor.

•Mouse: Optical Mouse.

•Ram : 512 Mb.

Software Requirements:

•Operating system : Windows 7.

•Coding Language: ASP.Net with C#

Further Details Contact: A Vinay 9030333433, 08772261612

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