1. Guide : Presented by :Mr.K.Muralisankar S.Aakasham13MCSE01PG
Scholar
2. Outline Introduction of HWN Why hybrid wireless network
Advantages Classification of Architecture Challenges in HWN Routing
protocols Challenges in Routing Proposed system Conclusion
ReferenceSVS COLLEGE OF ENGINEERING 3. Introduction of HWN Hybrid
wireless networks that integrate MANETs andinfrastructure wireless
networks have proven to be abetter network structure for the next
generationnetworks. It can act Base station and Ad hoc according to
theenvironment conditionsSVS COLLEGE OF ENGINEERING 4. SVS COLLEGE
OF ENGINEERING 5. Why hybrid wireless network Wireless network is
two different types Base station oriented wireless network (BS) Ad
hoc wireless network (Ad Hoc) Both have some challenges Capacity
(Ad hoc) Handoff (BS) Bandwidth (Ad hoc ) BS failure ( BS) Weak
connection (Ad hoc) HWN introduced for overcome those challengesSVS
COLLEGE OF ENGINEERING 6. Advantages More Reliable Better
Performance High Scalability Load BalancingSVS COLLEGE OF
ENGINEERING 7. Classification of
ArchitectureHybridArchitecturesHost-cum- RelayStationsDedicated
RelayStationsMultimodeSinglemodeMultimodeSinglemodeSVS COLLEGE OF
ENGINEERING 8. Host-cum-relay stations The dedicated relay stations
do not originate data traffic ontheir own and assist in forwarding
for the sender. Single-Mode Systems MHs operate only multi-hop
mode. E.g. Multi hop Cellular Network (MCN) Multi-Mode Systems The
mobile hosts act either in single-hop mode or in multi-hopmode
depending on the architecture. E.g. Directional throughput-enhanced
Wireless in Local Loop(DWiLL)SVS COLLEGE OF ENGINEERING 9.
Dedicated relay stations Dedicated relay stations are used for
relaying datatraffic Single-mode systems E.g. Self-Organizing
Packet Radio Ad hoc Network Overlay(SOPRANO) Multi-mode systems
E.g. integrated Cellular and Ad hoc Relay system (iCAR)SVS COLLEGE
OF ENGINEERING 10. Routing protocols Base-Assisted Ad Hoc Routing
protocol (BAAR) It was propose for the Multi Hop Cellular
Network(MCN) architecture It efficiently makes use of the BS for
Routing Base-Driven Multi Hop Bridging Routing protocol(BMBP) It
was proposed for the Multi Hop Wireless LANs(MWLANs) AP compute the
routing table is called bridging table It includes next hop node
& hop countSVS COLLEGE OF ENGINEERING 11. Routing protocols
(cont.. ) SMCN Routing protocol (SMRP) It was proposed for Single
Interface Multi Hop cellularNetwork (SMCN) architecture It provide
mechanisms for routing both control and datapacket through multiple
hops DWiLL Routing protocol (DRP) It was proposed for the
Directional Throughput enhanced Wireless in Local Loop (DWiLL)SVS
COLLEGE OF ENGINEERING 12. Challenges in Routing Presence of Base
Station Presence of High speed wired back bone High routing over
head ScalabilitySVS COLLEGE OF ENGINEERING 13. Conclusion Hybrid
wireless networks have proven to be a betternetwork structure for
the next generation networks. However, little effort has been
devoted to supportingQoS routing in hybrid networksSVS COLLEGE OF
ENGINEERING 14. Proposed system Over head ScalabilitySVS COLLEGE OF
ENGINEERING 15. Reference H. Wu and X. Jia, QoS Multicast Routing
by UsingMultiple Paths/Trees in Wireless Ad Hoc Networks,Ad Hoc
Networks, vol. 5, pp. 600-612, 2009. I. Jawhar and J. Wu, Quality
of Service Routing inMobile Ad Hoc Networks, Network Theory
andApplications, Springer, 2004. X. Du, QoS Routing Based on
Multi-Class Nodes forMobile Ad Hoc Networks, Ad Hoc Networks, vol.
2,pp. 241-254, 2004.SVS COLLEGE OF ENGINEERING
