Reliability Analysis of One-Hop Safety-Critical Broadcast Services in VANETs

• Published in: IEEE transactions on vehicular technology Vol. 60; no. 8; pp. 3933 - 3946
• Main Authors: Ma, Xiaomin, Zhang, Jinsong, Wu, Tong
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.10.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Ad hoc networks; Analytical models; Applied sciences; Broadcast; Broadcasting; Broadcasting. Videocommunications. Audiovisual; Business and industry local networks; Channels; Communication systems; Density; Display; Electronics; Exact sciences and technology; IEEE 802.11 Standards; Mathematical models; Measurement; medium access control (MAC); Messages; Miscellaneous; Networks and services in france and abroad; Packets (communication); Receivers; Reliability; Safety; Switching and signalling; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Vehicles; wireless ad hoc networks; Access control; Wireless LAN; Wireless telecommunication; wireless ad hoc networks; Information rate; Plasma display panel; Carrier detection; Broadcast; Broadcasting; Connectedness; Safety; Ad hoc network; Packet switching; Receiver; Information transmission; Short range transmission; medium access control (MAC); Multihop network; Telecommunication system; Wireless network; System simulation; Vehicular communication; Metric; Reliability; Personal communication networks; Flat panel displays; Mechanical shock
• ISSN: 0018-9545; 1939-9359
• DOI: 10.1109/TVT.2011.2165975

Reliability is an important issue for safety-critical broadcast services in vehicular ad hoc networks (VANETs). So far, most investigations of such broadcast networks focus on multihop connectivity, taking all one-hop links for granted. In this paper, four reliability metrics for one-hop broadcast communication in VANETs, including the packet reception rate (PRR), the packet delivery ratio (PDR), the node successful packet delivery probability (PDP), and the effective range (ER), are introduced and evaluated analytically and by simulations. Expressions of these reliability metrics for one-hop broadcast in IEEE-802.11-based 1-D VANETs are derived with consideration of the IEEE 802.11 distributed coordination function (DCF), the hidden terminal problem, and collisions caused by concurrent transmissions. The impacts of network parameters such as distinct transmission, carrier sensing, and interference ranges; the density of nodes in the networks; the distances of receivers to the senders; the message generation rates; the backoff window sizes; and the channel data rates on the reliability of the broadcast communication in VANETs are investigated and discussed. As an example, the proposed model is applied to the evaluation of the dedicated short-range communication (DSRC) safety-critical message propagation in a highway setting. As a result, some important observations to the design and analysis of such communication systems are provided.