future broadband wireless communication mobility testing platform_v6

7/30/2019 Future Broadband Wireless Communication Mobility Testing Platform_v6

1/23

http://WM.tongji.edu.cn

Future Broadband WirelessCommunication 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 EngineeringTongji University

http://wm.tongji.edu.cn


2/23

http://WM.tongji.edu.cn

Tongji Universitys Campuses

Siping Campus

Anting Campus

Anting auto town;

Auto Electronics

Shanghai


3/23

3 http://WM.tongji.edu.cn

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


4/23



5/23


Testbed design(Shanghai)


6/23


OPNET simulation platform

Test method and suite design

GSM, WCDMA, TD-SCDMA,

WIMAX, LTE

AM,FM,PM,ASK,FSK,PSK,QAM

System performance analyzer

Transportation Report

MeshRelayDistributed

Link level Simulation

ServicesPresentation

Multicarrier MIMO RoF

Parameter & Environment Config

Network Deployment

Network performance

report

Service Features Service flow model

Services Data Collection

Integrated service transportation performance Report

interface

DT Device

Air Interface test

Multi-channel test

Wave Propagation test

Wireless QoS Test

Hybrid Services

Concurrent Test

Outfield

verification

system

G bit Transportation test

PXI Controller

Test Executive Manage Policy

Wireless Test Tools

Spectrum Test Tools

LabView

digitizer

Modulation tools

More test module

vector signal generatorchannel

simulator

spectrum

analyzer

Integrated test bed

Framework of Shanghai 4GTest


7/237 http://WM.tongji.edu.cn

Base on the characters of the project, the indicators of thenetworking test should focus on the performance evaluation ofthe system.

Tongjis work in 4Gtest



DEMO__MIMO based wireless network

evaluation system demonstration
http://localhost/var/www/apps/conversion/tmp/scratch_6/4gtest-final(English).avi



Networking Testbed Architecture

Channel Testbed



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


11/23


Service-Oriented Research

Safety: improving driving safety and/or traffic efficiency

Non-safety: providing information and/or entertainment to the driver


12/23


Hybrid Framework

Vehicle Broadband Wireless Network Research (funded by NationalHigh-tech Research and Development Program (863 Project))

Transport Network

C2C Link

MobileRelay AP

network

infrastructure

Access

BUS

DSRC

CAR CARSS1

SS

3SS2

Fixed AP,

Local Control

Module

CAR

Internet

Intelligent

Traffic Control

Center


13/23


Research Topics

Realistic mobility model

Multi-channel Coordination

Mobility prediction

Data dissemination

Cluster-Based Routing Protocol Power

Power Control

Session Maintenance Maneuver


14/23


Realistic mobility model

Traffic flow characteristics-Vehicles speed range -Lanes number

-Vehicles density -Lane changing features

-Traffic regulation


15/23


Multi-Channel Operation

North America FCC 1999

DSRC: 172-184, 7 channels

Channel Coordination

Channel Assignment

Non Safety

App.DATA

CCH Interval (50ms) SCH Interval (50ms)

CCH

SCH

UTC SecondSynchronization Interval (100ms)

WSA: WAVE Service Advertisement

Guard Interval

W

S

A

Backoff slots

AIFS SIFS

W

S

A

SafetyApp.

SafetyApp.

AIFSDIFS

W

S

A

Backoff slots

Guard Interval

R

T

S

C

T

S

Backoff slots

A

C

K

SIFS


16/23


Mobility Prediction

Mobility prediction

Nodes can rebuild new routes by sensing its neighbours' movements

unnecessary prediction (C1C2C3

safe transmission (200


17/23


Cluster-Based Routing Protocol

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


18/23


Simulation Scenario

AP

RSSS

V1

V2V3flow1

flow2

flow3

flow3

flow4

flow4

DSRC Simulation in NS2


19/23



20/23



21/23


Testing Platform Scene

RSU

CCD

() RSU RSU


22/23


DEMO__DSRC


23/23


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

future broadband wireless communication mobility testing platform_v6

Documents