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

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

3 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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5 Testbed design(Shanghai)

6 Framework of Shanghai 4GTest

7 Base on the characters of the project, the indicators of the networking test should focus on the performance evaluation of the system. Tongjis work in 4Gtest

8 DEMO__MIMO based wireless network evaluation system demonstration

9 Networking Testbed Architecture Channel Testbed

10 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

11 Service-Oriented Research Safety: improving driving safety and/or traffic efficiency Non-safety: providing information and/or entertainment to the driver

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

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

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

15 Multi-Channel Operation North America FCC 1999 DSRC: , 7 channels Channel Coordination Channel Assignment

16 Mobility Prediction Mobility prediction Nodes can rebuild new routes by sensing its neighbours' movements unnecessary prediction (<200): A->C 1 C 2 C 3 safe transmission (200<R<240): A->C 4 change route (240<R<250): A->D->C n

17 Cluster-Based Routing Protocol Intra cluster : emergency messages, etc. Inter cluster : non-emergency and long-distance messages, etc.

18 Simulation Scenario DSRC Simulation in NS2

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21 Testing Platform Scene

22 DEMO__DSRC

23 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