A Cooperative Safety Zone Approach to Enhance the Performance of VANET Applications

Safety applications in VANETs relies on various type of information exchanges among vehicles of which Cooperative Awareness Message (CAM) has the largest share in the network load due to their periodic broadcast nature. As the vehicle density grows, the load generated by the CAMs could increase beyond the transmission capacity of a VANET resulting in the loss of neighborhood information and a higher utilization of the control channel. In this paper, we present the concept of a safety zone to adaptively control the transmit power of CAMs to restrict the network load without compromising the safety features of VANET applications. Moreover, we also introduce a new cooperative information sharing technique to increase the vehicle's awareness beyond the transmission range. The simulation results show that the proposed technique could significantly reduce the packet losses and channel utilization for a range of vehicle densities.

[1]  Gerges Dib.  Vehicle-to-Vehicle Channel Simulation in a Network Simulator , 2009 .

[2]  Kishor S. Trivedi,et al.  Design and Analysis of a Robust Broadcast Scheme for VANET Safety-Related Services , 2012, IEEE Transactions on Vehicular Technology.

[3]  Lin Yang,et al.  Piggyback Cooperative Repetition for Reliable Broadcasting of Safety Messages in VANETs , 2009, 2009 6th IEEE Consumer Communications and Networking Conference.

[4]  Wen-Long Jin,et al.  Broadcasting safety information in vehicular networks: issues and approaches , 2010, IEEE Network.

[5]  Paolo Santi,et al.  Vehicle-to-Vehicle Communication: Fair Transmit Power Control for Safety-Critical Information , 2009, IEEE Transactions on Vehicular Technology.

[6]  Hariharan Krishnan,et al.  Adaptive intervehicle communication control for cooperative safety systems , 2010, IEEE Network.

[7]  Weihua Zhuang,et al.  Modeling and Analysis for Emergency Messaging Delay in Vehicular Ad Hoc Networks , 2009, GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.

[8]  Hannes Hartenstein,et al.  Contextual Communications Congestion Control for Cooperative Vehicular Networks , 2011, IEEE Trans. Wirel. Commun..

[9]  Georgios Karagiannis,et al.  Exploring the solution space of beaconing in VANETs , 2009, 2009 IEEE Vehicular Networking Conference (VNC).

[10]  Georgios Karagiannis,et al.  Information dissemination in VANETS by piggybacking on beacons — An analysis of the impact of network parameters , 2011, 2011 IEEE Vehicular Networking Conference (VNC).

[11]  Ying Wu,et al.  Channel Adaptive One Hop Broadcasting for VANETs , 2008, 2008 11th International IEEE Conference on Intelligent Transportation Systems.

[12]  Ce-Kuen Shieh,et al.  Contextual Communications Congestion Control for Cooperative Vehicular Networks , 2010, IEEE Transactions on Wireless Communications.

[13]  Gongjun Yan,et al.  Dynamic Adaptation of Joint Transmission Power and Contention Window in VANET , 2009, 2009 IEEE 70th Vehicular Technology Conference Fall.

[14]  Maria Kihl,et al.  Inter-vehicle communication systems: a survey , 2008, IEEE Communications Surveys & Tutorials.