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OPTIMIZING PERFORMANCE OF 4G NETWORK USING VERTICAL HANDOFF
The document discusses the optimization of fourth generation (4G) networks through vertical handoff techniques, detailing the evolution of wireless communication from 1G to 4G. It highlights the handover process, which allows seamless transitions between different network technologies to enhance user experience and service quality while considering factors such as connectivity, mobility, and service costs. Additionally, it presents a model based on WLAN and WCDMA integration using SINR algorithms to minimize handover failures and improve data throughput.
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OPTIMIZING PERFORMANCE OF 4G NETWORK USING VERTICAL HANDOFF
- 1. Optimization ofOptimization of FourthGeneration NetworksFourth Generation Networks using Vertical Handoffusing Vertical Handoff Presentation by: Harshal SolaoHarshal Solao ComputerTechnologyComputerTechnology
- 2. Evolution Of WirelessEvolutionOf Wireless CommunicationCommunication 2Optimization Of 4G Networks Using Vertical Handoff
- 3. Comparison of WirelessComparisonof Wireless CommunicationCommunication GenerationGeneration 1G1G 2G2G 3G3G 4G4G TechnologyTechnology AnalogAnalog Digital CircuitDigital Circuit SwitchedSwitched DigitalDigital PacketPacket SwitchedSwitched DigitalDigital BroadbandBroadband RadioRadio FrequencyFrequency 400-800 Mhz400-800 Mhz 800-900 Mhz800-900 Mhz 1800 -1900 Mhz1800 -1900 Mhz 2Ghz2Ghz 2-8ghz2-8ghz Bandwidth(bps)Bandwidth(bps) 2.4-30 Kbps2.4-30 Kbps 9.6 -14.4 Kbps9.6 -14.4 Kbps 2 -5 Mbps2 -5 Mbps 20Mbps-40Mbps20Mbps-40Mbps Service TypeService Type VoiceVoice Voice,Voice, Short MessageShort Message ServiceService Voice, Data,Voice, Data, MultimediaMultimedia supportsupport StreamedStreamed Multimedia,Multimedia, MobileMobile BroadbandBroadband Optimization Of 4G Networks Using Vertical Handoff 3 PropertyProperty
- 4. Optimization Of 4GNetworks Using Vertical Handoff 4 Constituents of the HeterogeneousConstituents of the Heterogeneous EnvironmentEnvironment Network Coverage Data Rates Mobility Cost SatelliteSatellite (B-GAN)(B-GAN) WorldWorld Max.Max. 492kb/s492kb/s HighHigh HighHigh GSM/GPRSGSM/GPRS Approx. 35Approx. 35 kmkm 9.6 kb/s up9.6 kb/s up to 144 kb/sto 144 kb/s HighHigh HighHigh IEEE 802.16aIEEE 802.16a Approx. 30Approx. 30 kmkm Max 70 Mb/sMax 70 Mb/s Low/MediumLow/Medium MediumMedium UMTSUMTS 20 km20 km Up to 2Mb/sUp to 2Mb/s HighHigh HighHigh IEEE 802.11aIEEE 802.11a 50up-300m50up-300m 54Mb/s54Mb/s Medium/HighMedium/High LowLow IEEE 802.11bIEEE 802.11b 50up-300m50up-300m 11Mb/s11Mb/s Medium/HighMedium/High LowLow BluetoothBluetooth 10m10m Max 700Max 700 kb/skb/s Very LowVery Low LowLow Table -Diversity in existing wireless access technologiesTable -Diversity in existing wireless access technologies
- 5. HandoverHandover What is handover?Whatis handover? Changing the point of connection whileChanging the point of connection while communicatingcommunicating Why is handover needed?Why is handover needed? MobilityMobility User preferencesUser preferences What is the objective?What is the objective? Handover procedure without a users noticeHandover procedure without a users notice Seamless handoverSeamless handover 5Optimization Of 4G Networks Using Vertical Handoff
- 6. BSCBSC BS1BS1 BS2BS2 BS3BS3 1.Connect to BS1 and start conversation1. Connect to BS1 and start conversation2. Moving out of BS1’s coverage – connect to BS22. Moving out of BS1’s coverage – connect to BS23. Moving out of BS2’s coverage – connect to BS33. Moving out of BS2’s coverage – connect to BS34. Conversation ended – still within BS3’s coverage4. Conversation ended – still within BS3’s coverage 6Optimization Of 4G Networks Using Vertical Handoff
- 7. 7 Horizontal HandoffHorizontal Handoff VerticalHandoffVertical Handoff 7Optimization Of 4G Networks Using Vertical Handoff Classification of Handover
- 8. 8 Vertical HandoverVertical Handover Stepsof Vertical HandoffSteps of Vertical Handoff System Discovery:System Discovery: Mobile terminals equipped with multipleMobile terminals equipped with multiple interfaces deploy a system discovery agent to determine whichinterfaces deploy a system discovery agent to determine which networks can be used and the services available in each network.networks can be used and the services available in each network. Handoff decision:Handoff decision: Based on several parameters like RSS,Based on several parameters like RSS, availability of free channel and service charges, the mobile devicesavailability of free channel and service charges, the mobile devices determine which network it should connect to.determine which network it should connect to. Handoff execution:Handoff execution: The connections are rerouted from the existingThe connections are rerouted from the existing network to the new network in a seamless manner.network to the new network in a seamless manner. 8Optimization Of 4G Networks Using Vertical Handoff
- 9. VHDCriteriaVHDCriteria 9Optimization Of 4GNetworks Using Vertical Handoff
- 10. SINRBased AlgorithmSINRBased Algorithm Heterogeneouswireless networks offer the end users withHeterogeneous wireless networks offer the end users with assurance of QoS .assurance of QoS . SINR based vertical handoff can support multimedia QoS withSINR based vertical handoff can support multimedia QoS with adaptive data rateadaptive data rate Achieve the maximum throughputs during vertical handoffAchieve the maximum throughputs during vertical handoff Negligible handover failuresNegligible handover failures Avoids unnecessary handovers and connection breakdownAvoids unnecessary handovers and connection breakdown Our model is based on the WLAN and WCDMA integrationOur model is based on the WLAN and WCDMA integration architecture using SINR algorithm.architecture using SINR algorithm. Optimization Of 4G Networks Using Vertical Handoff 10
- 11. Software RequirementsSoftware Requirements Matlab/ NS2Matlab / NS2 Ns 2Ns 2 (Network Simulator) an event simulator(Network Simulator) an event simulator targeted at networking research.targeted at networking research. Simulation of TCPSimulation of TCP MMulticast protocols over wired and wireless (local andulticast protocols over wired and wireless (local and satellite) networkssatellite) networks MATLABMATLAB (Matrix Laboratory) is a numerical(Matrix Laboratory) is a numerical computing environment and fourth-generationcomputing environment and fourth-generation programming language.programming language. Plotting of functions and dataPlotting of functions and data Implementation of algorithmsImplementation of algorithms Creation of user interfacesCreation of user interfaces 11Optimization Of 4G Networks Using Vertical Handoff
- 12. 1212 The research projectpresented in this thesisThe research project presented in this thesis focuses on this issues, and provides an integratedfocuses on this issues, and provides an integrated solution to the optimization of the VHD process.solution to the optimization of the VHD process. We have surveyed four wireless technologiesWe have surveyed four wireless technologies namely 1G, 2G, 3G and 4G.namely 1G, 2G, 3G and 4G. Studied Vertical handoff process which resultsStudied Vertical handoff process which results into, Seamless handover , Extending valuableinto, Seamless handover , Extending valuable battery life, Low monetary cost etc.battery life, Low monetary cost etc. Our model is based on the WLAN and WCDMAOur model is based on the WLAN and WCDMA integration architecture using SINR algorithm.integration architecture using SINR algorithm. 12Optimization Of 4G Networks Using Vertical Handoff Conclusion
- 13. ReferencesReferences Qing-An Zeng andD.P.Agrawal,Qing-An Zeng and D.P.Agrawal, Handoff inHandoff in Wireless Mobile NetworksWireless Mobile Networks, Chapter 1, Handbook, Chapter 1, Handbook of Wireless Networks and Mobile Computing, 2002of Wireless Networks and Mobile Computing, 2002 Hussain et al.,Hussain et al., Mobility Management ChallengesMobility Management Challenges and Issues in 4G Heterogeneous Networksand Issues in 4G Heterogeneous Networks, In, In Proceedings of InterSense'06, May 2006Proceedings of InterSense'06, May 2006 13Optimization Of 4g Networks Using Vertical Handoff
- 14. THANK YOUTHANK YOU 14OptimizationOf 4g Networks Using Vertical Handoff
Editor's Notes
- #3 Mobility is the state of being in motion. In 4G roaming is seamless and users are always connected to the best network. A pedestrian is a person travelling on foot IEEE 802.11b, is an amendment to the IEEE 802.11 specification that extended throughput up to 11 Mbit/s. This specification under the marketing name of Wi-Fi. Data rate of 11 mbits/s. 802.11g supports bandwidth up to 54 Mbps. Wimax data rates of 100 Mbit/s The data transfer rate (DTR) is the amount of digital data that is moved from one place to another in a given time.
- #6 Handover Transfer an on-going call or data session from one channel to another, or from one technology to another. Horizontal Handover Vertical Handover – Intersystem Handover Inter-domain handover Mobility: user movement out of coverage User preferences: data rate, cost, security Objective The user shall not notice the handover procedure Seamless handover: low loss and low delay
- #15 Heterogenous ntwk, wlan, wcdma, 3G, wimax