Broadcast reception rates and effects of priority access in 802.11-based vehicular ad-hoc networks
Proceedings of the 1st ACM international workshop on Vehicular ad hoc networks
XORs in the air: practical wireless network coding
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Overhaul of ieee 802.11 modeling and simulation in ns-2
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
Message broadcast using optical orthogonal codes in vehicular communication systems
The First International Workshop on Wireless Networking for Intelligent Transportation Systems
Adaptive intervehicle communication control for cooperative safety systems
IEEE Network: The Magazine of Global Internetworking
An improved coded repetition scheme for safety messaging in VANETs
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Design of 5.9 ghz dsrc-based vehicular safety communication
IEEE Wireless Communications
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In vehicular ad-hoc networks (VANETs), vehicles are aware of the state of the vehicles in their proximity by periodically broadcasting a safety message called beacon. Based on such state information, safety applications allow people to avoid hazardous situations. Recently, network coding (NC)-based repetition schemes have been proposed for the reliable transmission of life-critical beacons, where a sender combines (XORs) beacons from neighbors and repeats the XORed packets instead of its original beacon. Repeating the XORed packets improves the beacon delivery ratio. Although it could extend the coverage of beacon transmission, vehicles are more interested in the state of vehicles nearer to them since they are more likely to be exposed to dangerous situations with closer neighbors. In this paper, we therefore propose a Coverage-Controlled network CODEd Repetition (C2-CODER) scheme in order to allow scarce channel resources not to be wasted for extending the coverage unnecessarily. C2-CODER avoids coverage extension by restricting the maximum distance between the sender and the sources of beacons being combined into a XORed packet. Through our simulation study, it is verified that C2-CODER outperforms existing schemes in terms of higher beacon delivery rate.