A wireless hybrid network is integrates a mobile wireless ad-hoc network and a wireless infrastructure It proven the better alternative for next generation Wireless network It popular among critical mission applications like military use or emergency recovery However, the open medium and wide distribution of nodes make HWN vulnerable to malicious attackers In this case, it is crucial to develop efficient intrusion-detection mechanisms to protect HWN from attacks

1. Presented By
S.AAKASHAM
722012405001
II M. E. ,CSE
SVS College of Engineering.
A Secure QOS Oriented Routing for
Hybrid Wireless Networks
Guided By
Mr. S. R. MUGUNTHAN, M. E.,
Assistant Professor & HOD,
Dept of Computer Science and Engg.,
SVS College of Engineering.

2. Abstract
A wireless hybrid network is integrates a mobile wireless
ad-hoc network and a wireless infrastructure
It proven the better alternative for next generation Wireless
network
It popular among critical mission applications like military
use or emergency recovery
However, the open medium and wide distribution of nodes
make HWN vulnerable to malicious attackers
 In this case, it is crucial to develop efficient intrusion-
detection mechanisms to protect HWN from attacks

3. Existing system
To support QOS routing in hybrid wireless network
Introduce QOS Oriented Distributed Routing Protocol to
enhance the QOS support capability of hybrid networks.
It incorporates the five algorithm
1. Neighbor Selection Algorithm: To meet the
transmission delay requirement
2. Distributed Packet Scheduling Algorithm: Reduce
the transmission delay

4. Existing system contd..
3. Mobility based Segment Resizing Algorithm:
Adjusts segment size according to node mobility in order
to reduce the transmission time
4. Traffic Redundant elimination Algorithm: To
increase the transmission throughput
5. Data redundancy elimination based transmission
Algorithm: To Eliminate the redundant data to improve
the transmission QOS

5. Advantage
It can provide the high QOS performance such as
overhead, transmission delay, mobility-resilience and
scalability
Disadvantage
In this method, there is a chance for attackers

6. Proposed system
In this project proposed a new intrusion-detection
system named Enhanced Adaptive ACKnowledgment
(EAACK) specially designed for HWNs
Using the SQOD scheme, the attacker has been
detected efficiently
In this scheme, SQOD is splitted into 3 categories.
1. ACKnowledgment (ACK)
2.Secure-ACKnowledgement (S-ACK)
3.Misbehavior Report Authentication (MRA)

7. Advantage
Reduced receiver collisions and false misbehavior
report
Increase the limited transmission power

8. Modules
ACK Mode
SACK Mode
MRA Mode

9. ACK Mode
ACK is basically an end-to-end acknowledgment
scheme
It acts as a part of the hybrid scheme in SQOD, aiming
to reduce network overhead when no network
misbehavior is detected

10. S-ACK Mode
Every three consecutive nodes work in a group to
detect misbehaving nodes
For every three consecutive nodes in the route, the
third node is required to send an S-ACK
acknowledgment packet to the first node
source node immediately trusts the misbehavior report,
EQOD requires the source node to switch to MRA
mode and confirm this misbehavior report

11. S-ACK Schema

12. MRA Mode
The MRA scheme is designed to resolve the weakness
of Watchdog
 The false misbehavior report can be generated by
malicious attackers to falsely report innocent nodes as
malicious
This attack can be lethal to the entire network when
the attackers break down sufficient nodes and thus
cause a network division
The core of MRA scheme is to authenticate whether
the destination node has received the reported missing
packet through a different route

13. Next Module
Above the three module implement to QOD Routing
Protocol
It can provide Secure QOS routing in Hybrid Wireless
Networks