Paper Info
Title
A Comparative Experimental Analysis Of Channel Access Protocols In Vehicular Networks
Abstract
The deployment of vehicular networks is considered crucial for traffic safety of future vehicles. Thus, researchers are making extensive efforts to improve the performance of the IEEE802.11p standard. Many researchers have proposed various MAC protocols to mitigate the chronicle problems of the IEEE802.11p for example, the unreliable transmission of safety-related messages. However, most of the previous evaluations of the reliability problem have been done either via mathematical analysis or simulations. In this paper, we conducted actual experiments and analyzed the performance of two MAC protocols: IEEE802.11p and HCMAC, a hybrid MAC protocol recently reported. Using commercial V2X devices, we measured the performance in terms of received signal strength indicator (RSSI), packet delivery ratio (PDR), and packet inter-reception time (PIR). We tested the connectivity performance under various mobility scenarios. In addition, this paper investigates the impact of collisions on the overall performance. For a range of collision levels, an extensive set of experiments demonstrate that HCMAC outperforms the MAC of IEEE802.11p in terms of PDR and PIR up to 88 and 47, respectively.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2947290
IEEE ACCESS
Keywords
DocType
Volume
Performance evaluation, Vehicle-to-everything, Media Access Protocol, Safety, Reliability, Standards, Testing, VANET, IEEE80211p, HCMAC, Cohda wireless, field testing
Journal
7
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Mohamed A. Abd El-Gawad171.88
Mahmoud A. El-Sharief251.53
Hyungwon Kim33014.13