In this work we introduce a new model for exploiting network diversity in vehicular environments, which integrates ad-hoc communications with the existing cellular infrastructure aiming to meet the diverse communication requirements of vehicular applications. Although there are a plethora of reported studies on either 802.11p Digital Short Range Communications (DSRC) or cellular networks, joint...

A protocol which is mainly used for intelligent transportation system is the dedicated short range communication (DSRC). By this protocol the information signals which are transmitted are encoded by using either FM0 or Manchester codes. The designing of VLSI architecture is limited by the code diversity between these two codes that supports the both. Hence this paper gives a new VLSI architectu...

In the United States, passenger vehicle manufacturers have been working together, along with the U. S. government, to study wireless communications for vehicle safety applications. From 2002-4, seven automotive manufacturers— BMW, DaimlerChrysler, Ford, GM, Nissan, Toyota, and VW— worked with the United States Department of Transportation (USDOT) to evaluate vehicle safety applications enabled ...

Though there exist ready-made DSRC/WiFi/3G/4G cellular systems for roadway communications, there are common defects in these systems for roadway safety oriented applications and the corresponding challenges remain unsolved for years, i.e., WiFi cannot work well in vehicular networks due to the high probability of packet loss caused by burst communications, which is a common phenomenon in roadwa...

Intersection crashes account for 1.72 million crashes per year in the United States. In 2004 stop-sign and traffic signal violations accounted for approximately 302,000 crashes resulting in 163,000 functional lifeyears lost and $7.9 billion of economic loss [1]. The objective of the Cooperative Intersection Collision Avoidance System for Violations (CICAS-V) project was to design, develop, and ...

According to car crash statistics, over sixmillionmotor vehicle crashes occur onU.S. highways each year. More than 42,000 people are killed in these accidents which injure three million others, and cost more than $230 billion each year. Astonishingly, five people die every hour in these crashes in the United States which is about one death every 12 minutes IVI (2001). In order to alleviate the ...