GNSS alone is not a reliable source for DSRC safety applications. Cooperative Positioning (CP) in VANET refers to a technique based on communication via a DSRC channel and information fusion. CP combines the information gathered from several road users to refine self-position. CP can require range measurement between vehicles by some radio ranging technique. Two types of CP are introduced in th...

Authors have proposed a Novel Combined hybrid Architecture for various vehicular communication scenarios to the advancement of deployed Intelligent Transportation System (ITS). In our Scenario, the existing Dedicated Short Range Communication (DSRC) (IEEE 802.11 p) and Mobile WiMAX (IEEE 802.16 e) acts as an onboard Unit (OBU). As OBUs move between communication range, Vehicle exchange informat...

In this paper, we survey the global positioning system (GPS)-less vehicular localization methods using dedicated short range communication (DSRC). Time of arrival (TOA), which is one of the radio-based ranging techniques, is used in the methods to localize a vehicle. Through the localization methods using DSRC, vehicles can handle GPS error or the situations of no GPS location data when they ar...

BACKGROUND Although regulatory compliance in academic research is enforced by law to ensure high quality and safety to participants, its implementation is frequently hindered by cost and logistical barriers. In order to decrease these barriers, we have developed a Web-based application, Duke Surgery Research Central (DSRC), to monitor and streamline the regulatory research process. RESULTS Th...

The need for critical improvements to the North American surface transportation infrastructure vis-a-vis alleviation of congestion while enhancing public safety has led to new Intelligent Transportation Systems (ITS) infrastructure based on vehicle-to-vehicle (v2v) wireless communications. The allocation of 75 MHz in the 5.9 GHz band for DSRC (Dedicated Short Range Communications) may also enab...

This paper provides the status of the Vehicle Safety Communications-Applications (VSC-A) research project, which was designed to determine if dedicated short range communications (DSRC) paired with accurate vehicle positioning can improve upon autonomous vehicle-based safety systems or enable new communication-based safety applications. This three-year project is a collaborative effort between ...

Sulfate reduction is one of the earliest types of energy metabolism used by ancestral organisms to sustain life. Despite extensive studies, many questions remain about the way respiratory sulfate reduction is associated with energy conservation. A crucial enzyme in this process is the dissimilatory sulfite reductase (dSiR), which contains a unique siroheme-[4Fe4S] coupled cofactor. Here, we rep...

Vehicular Ad Hoc Network (VANET), which is based on Dedicated Short Range Communication (DSRC) provides an opportunity to enable communication based cooperative safety systems in order to reduce road accidents and improve traffic efficiency. This paper describes the reliability of the Dedicated Short Range Communication (DSRC) to provide message authentication scheme to ensure the received mess...

The need for critical improvements to the North American surface transportation infrastructure vis-a-vis alleviation of congestion while enhancing public safety has led to new intelligent transportation system (ITS) infrastructure based on vehicle-to-vehicle (v2v) wireless communications. The allocation of 75 MHz in the 5.9 GHz band for dedicated short-range communications (DSRC) may also enabl...

DSRC provides high speed radio link between Road Side Equipment and On-Board Equipment within the narrow communication area. In this paper, a 5.8 GHz down-conversion mixer for DSRC communication system is designed and fabricated using 0.8 m SiGe HBT process technology and RF/LO matching circuits, RF/LO input balun circuits and IF output balun circuit are all integrated on chip. The measured per...