Copyright © 2011 VehiCom. All rights reserved. Last updated on October,  2011

The First DSRC/WAVE OUB/RSU

We offer off-the-shelf real-time full functional wireless wireless access for vehicular environments (WAVE) onboard unit (OBU) and roadside unit (RSU) based on the IEEE 802.11p standard.

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Demonstration Video or Online Video

Applications

· Intelligent transportation Systems (ITS) , national-wide vehicular wireless infrastructure, and traffic monitoring and controlling.

· High-speed at high-speed: wireless access and services, onboard entertainment and commerce transactions

· Safety enhancement: crash prevention, zero accident and autonomous driving.

Key Technologies

· Novel multiple-stage Doppler frequency detector and proactive channel estimator under diverse doubly selective vehicular channels.

· Complete IEEE 802.11p PHY and MAC protocol stacks.

· Software radio capability with multiple work modes (Option)

Introduction

WAVE systems offer enhanced safety, intelligent traffic management and wireless access for vehicles through the high-speed wireless links between vehicles and between vehicles and the roadside access points (APs) based on the IEEE 802.11p standard, ratified in 2010. By adopting orthogonal frequency multiplexing division (OFDM) modulation scheme, WAVE systems achieve a data rate of 6-27Mbits/s and a WAVE device covers a range of 1000 feet. The Federal Communication Commission (FCC) has assigned the 5.850-5.925GHz band for the operation of WAVE systems.

WAVE requires intensive R&D and manufacture activities including function definition, algorithm development, system design, prototype assessment and massive production. The enormous market need of WAVE production could sustain one or several tier-one automobile large suppliers and many surrounding companies. Thousands of workshops are in need to install WAVE devices to existing billions of vehicles. Moreover, the WAVE service could foster one or several service operators with comparable sizes as big as cellular carriers. In summary, WAVE generates a fresh information technology industry on vehicle basis and brings up an opportunity to enhance the quality of life and intensify automobile’s high-tech ingredients and competitiveness. The magnitude and degree of the impacts on Automobile industry in the worldwide are substantial, multi-layered and profound.

System Diagram

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Fig.1 OFDM frames shown in the I/Q baseband format

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Fig.2 Binary bit streams were transmitted and recovered, showing the whole baseband processing latency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.3 FPGA Layout

System Highlights

1.     Leading and proven baseband algorithms, and patent for Doppler shift compensation

2. Low-cost and light-weight solution

3. Integrated small factor for vehicle applications

4. Real-time and low-latency operations upon Altera FPGA and Nios DSP.