Medium access and radio resource management for ad hoc networks based on UTRA TDD
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Deadline dependent coding-a framework for wireless real-time communication
RTCSA '00 Proceedings of the Seventh International Conference on Real-Time Systems and Applications
Industrial Ethernet
Automation Network Selection
Challenges of intervehicle ad hoc networks
IEEE Transactions on Intelligent Transportation Systems
A Reliable Link-Layer Protocol for Robust and Scalable Intervehicle Communications
IEEE Transactions on Intelligent Transportation Systems
A tutorial survey on vehicular ad hoc networks
IEEE Communications Magazine
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Chameleon-MAC: adaptive and self-algorithms for media access control in mobile ad hoc networks
SSS'10 Proceedings of the 12th international conference on Stabilization, safety, and security of distributed systems
Enabling vehicular visible light communication (V2LC) networks
VANET '11 Proceedings of the Eighth ACM international workshop on Vehicular inter-networking
VANET '11 Proceedings of the Eighth ACM international workshop on Vehicular inter-networking
Congestion control for vehicular safety: synchronous and asynchronous MAC algorithms
Proceedings of the ninth ACM international workshop on Vehicular inter-networking, systems, and applications
VANET in eyes of hierarchical topology
FOMC '12 Proceedings of the 8th International Workshop on Foundations of Mobile Computing
A reliable and timely medium access control protocol for vehicular ad hoc networks
International Journal of Ad Hoc and Ubiquitous Computing
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Traffic safety applications using vehicle-to-vehicle (V2V) communication is an emerging and promising area within the intelligent transportation systems (ITS) sphere. Many of these new applications require real-time communication with high reliability, meaning that packets must be successfully delivered before a certain deadline. Applications with early deadlines are expected to require direct V2V communications, and the only standard currently supporting this is the upcoming IEEE 802.11p, included in the wireless access in vehicular environment (WAVE) stack. To meet a real-time deadline, timely and predictable access to the channel is paramount. However, the medium access method used in 802.11p, carrier sense multiple access with collision avoidance (CSMA/CA), does not guarantee channel access before a finite deadline. In this paper, we analyze the communication requirements introduced by traffic safety applications, namely, low delay, reliable, real-time communications. We show by simulation of a simple, but realistic, highway scenario, that vehicles using CSMA/CA can experience unacceptable channel access delays and, therefore, 802.11p does not support real-time communications. In addition, we present a potential remedy for this problem, namely, the use of self-organizing time division multiple access (STDMA). The real-time properties of STDMA are investigated by means of the same highway simulation scenario, with promising results.