Future Broadband Wireless Communication Mobility Testing Platform

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Future Broadband Wireless Communication Mobility
Testing Platform

• Ph.D, Prof. Fuqiang Liu, Xuefeng Yin
• Broadband Wireless Communication and Multimedia
  Institute
• Embedded System and Computing-service Lab ,
  Ministry of Education
• School of Electronics and Information Engineering
• Tongji University
• http//wm.tongji.edu.cn

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Tongji Universitys Campuses
Anting auto town Auto Electronics
Siping Campus
Anting Campus
Shanghai
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Outline

• Broadband Wireless Testbed(WiMAX/4G)
• 4G Testbed Shanghai Platform
• Tongjis work in 4G
• Vehicle Broadband Wireless Research and
  simulation
• Testing Platform
• Channel Emulation for Mobility Testing

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Testbed design(Shanghai)
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Framework of Shanghai 4GTest
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Tongjis work in 4Gtest

• Base on the characters of the project, the
  indicators of the networking test should focus on
  the performance evaluation of the system.

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DEMO__MIMO based wireless network evaluation
system demonstration
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Networking Testbed Architecture
Channel Testbed
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Features of DSRC

• Dedicate short rang communications (DSRC)
  ,IEEE802.11p
• 75 MHz of band available in U.S.
• Twice the bandwidth of cellular
• Approved by FCC
• Primary allocation
• Allocation incentive was safety
• Range Up to 1000 meters
• Data Rate Up to 27 Mbps
• Tolling will probably use default data rate of 6
  Mbps
• Mobile connection up to 120 mph
• High Availability Low Latency (50ms)
  Prioritization Service

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Service-Oriented Research

• Safety improving driving safety and/or traffic
  efficiency
• Non-safety providing information and/or
  entertainment to the driver

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Hybrid Framework
Vehicle Broadband Wireless Network Research
(funded by National High-tech Research and
Development Program (863 Project))
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Research Topics

• Realistic mobility model
• Multi-channel Coordination
• Mobility prediction
• Data dissemination
• Cluster-Based Routing Protocol Power
• Power Control
• Session Maintenance Maneuver

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Realistic mobility model
Traffic flow characteristics -Vehicles speed
range -Lanes number -Vehicles density -Lane
changing features -Traffic regulation
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Multi-Channel Operation

• North America FCC 1999
• DSRC 172-184, 7 channels
• Channel Coordination
• Channel Assignment

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Mobility Prediction
Nodes can rebuild new routes by sensing its
neighbours' movements
unnecessary prediction (lt200)
A-gtC1?C2?C3 safe transmission (200ltRlt240)
A-gtC4 change route (240ltRlt250)
A-gtD-gtCn
Mobility prediction
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Cluster-Based Routing Protocol

• Intra cluster emergency messages, etc.
• Inter cluster non-emergency and long-distance
  messages, etc.

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Simulation Scenario
DSRC Simulation in NS2
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Testing Platform Scene
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DEMO__DSRC
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Outline

• Broadband Wireless Testbed(WiMAX/4G)
• 4G Testbed Shanghai Platform
• Tongjis work in 4G
• Vehicle Broadband Wireless Research and
  simulation
• Testing Platform
• Channel Emulation for Mobility Testing