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Introduction
Implementation
Results
Conclusion
Future Work
Reference
Questions
Outline
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Motivation
Background Information
Project Idea
Introduction Implementation Results Conclusion Future Work References Questions
Introduction
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4th generation of mobile network technology
Latest high speed mobile broadband technology
Widely used for many countries
Deep understand of LTE network
Motivation
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What is LTE? Long-Term Evolution
A Standard for wireless data communications
technology
First proposed by NTT DoCoMo of Japan in 2004
Developed by the 3GPP
(3rd Generation Partnership Project)
Background Information
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LTE Architecture
Background Information
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Advantages High throughput, downlink rate and uplink rate High capacity of wireless data network High Quality of Service (QoS) Low data transfer latency (less than 5 ms) Conserve power (OFDMA for downlink, SC-FDMA
for uplink) Increased supported cell size (up to 100 km) Scalable carrier bandwidths (1.4 MHz to 20 MHz) Lower operating costs
Background Information
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Use OPNET to simulate the LTE network
topology
Analysis the performance of video
conferencing on LTE network
Project Idea
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LTE Network 1 with Single Base-Station (eNodeB)
LTE Network 1 with Multiple Base-Station (eNodeB)
Implementation
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Introduction Implementation Results Conclusion Future Work References Questions
LTE Network 1 (Single eNodeB)
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LTE Network 2 (Multiple eNodeB)
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Single eNodeB
Multiple eNodeB
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Results
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Results
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Global traffic sent (Single eNodeB)
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Results
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Global traffic received (Single eNodeB)
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Results
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Global traffic sent for user one (Single eNodeB)
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Results
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Global traffic received for user one (Single eNodeB)
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Results
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Global LTE downlink delay (Single eNodeB)
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Results
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Global LTE uplink delay (Single eNodeB)
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Results
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Global LTE uplink throughput (Single eNodeB)
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Results
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Global LTE downlink throughput (Single eNodeB)
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Results
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Global traffic received (Multiple eNodeB)
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Results
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Global traffic sent (Multiple eNodeB)
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Results
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Global traffic sent for user one (Multiple eNodeB)
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Results
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Global traffic received for user one (Multiple eNodeB)
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Results
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Global packet delay variation for user one (Multiple eNodeB)
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Results
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Global packet delay variation for user one (Multiple eNodeB)
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Conclusion
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Higher bandwidth leads to better
performance Uplink Rate and Downlink Rate
Lower Delay
User under same eNodeB better than
under multiple eNodeB’s
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Future Work
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Build up a more complicated network
topology
Analysis of voice on LTE network
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References
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[1] Steven Hartley, “LTE: The Future of Mobile Data” [Online]. Available: http://www.forbescustom.com/TelecomPgs/LTEP1.html
[2] “LTE Architecture” [Online]. Available: http://www.rcrwireless.com/lte/lte-architecture-epc-sae.html
[3] Kreher, Ralf, “LTE signaling, troubleshooting, and optimization / Ralf Kreher and Karsten Gaenger,” in Chichester, West Sussex, U.K.: Wiley, 2011
[4] Ghosh, Amitabha, “Essentials of LTE and LTE-A / Amitabha Ghosh and Rapeepat Ratasuk.” In Cambridge UK ; New York : Cambridge University Press, c2011
[5] FDD-LTE [Online].Available: http://baike.baidu.com/view/3723673.htm
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Questions
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