Link connectivity under more realistic channel model for vehicle-to-vehicle communications. (2016)

• Record Type: Journal Article
• Authors: Chen, Ruifeng; Zhong, Zhangdui; Leung, Victor C.M.; Michelson, David G.
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 22:Number 1(2016)
• Page Start: 35
• Page End: 47
• Publication Date: 2016
• Subjects: V2V communications -- link connectivity -- vehicle-to-vehicle communications -- connectivity performance -- realistic channel model -- moving obstacles -- shadowing effect -- channel state transition -- dual-slope path loss -- radio channels -- traffic flow -- inter-vehicle connectivity probability -- link duration -- simulation -- vehicular ad hoc networks -- VANETs; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

Since the antennas are very low in vehicle-to-vehicle (V2V) scenarios, the communication link is easily blocked by other vehicles. The shadowing effect caused by other vehicles has been ignored in most of the existing V2V channel models, and it is thus neglected in the system performance evaluation. By incorporating channel state transition with a measurement-based dual-slope path loss model, an obstacle-based model is presented in this paper for the V2V highway scenarios to capture the dynamic characteristics of radio channels, in the presence of other vehicles as moving obstacles. The joint effects of the radio environment and traffic flow on link connectivity are mainly investigated. The obstruction probability is represented, and the connectivity-related metrics are evaluated: inter-vehicle connectivity probability and link duration. All the analytical results are validated by extensive simulations under the measurement-based path loss model, and are also compared to the existing models.