mobility management, privacy, and other issues in vehicular networking
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Mobility Management, Privacy, and other Issues in Vehicular Networking
Sandra L. CéspedesBroadband Communications Research Group (BBCR)
University of Waterloo
MOBOPTS RG – 81st IETF meeting, Québec, Canada
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Outline
• Introduction to Vehicular networking• Mobility management– Interworking HIP-PMIPv6 scheme– Multi-hop PMIPv6
• Related work: – Privacy– Applications– Traffic and mobility
• Current work and open issues
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Vehicular networking• Different types of communications:
– Vehicle to Infrastructure (V2I)– Vehicle to Vehicle (V2V)– Hybrid
• Different types of services:– Safety and emergency communications– Traffic monitoring and
management– Information and
entertainment applications• Different types of access technologies
– 802.11p/WAVE– 3G/4G/LTE– WiFi…
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Vehicular networking• Unique characteristics:
– Restricted Mobility– Availability of location information– No strict energy consumption constraints– Mixed types of communications: infrastructure-based, mobile hot-
spots, and ad-hoc• Some research challenges
– Frequent link disconnection– Highly dynamic spacial-temporal traffic conditions– Heterogeneity of data dissemination– Efficient and adaptive IP support and IP mobility– Anonymity and location privacy
H.T. Cheng, H. Shan, and W. Zhuang, “Infotainment and road safety service support in vehicular networking: From a communication perspective,” Mechanical Systems and Signal Processing, vol. 25, Aug. 2010, pp. 2020-2038.
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Mobility Management• Previous research
1. Evaluation of NEMO RO solutions for vehicular communications networks [1]
2. Interworking HIP-PMIPv6 scheme for IP mobility in urban vehicular scenarios [2]
Mobile networks (vehicles, buses, trains)No mobility-enabled nodes (devices with traditionalTCP/IP stack)Mobility-enabled nodes (HIP-enabled mobile phones, laptops, hand held devices)
[1] S. Céspedes , X. (Sherman) Shen, C. Lazo. "IP Mobility Management for Vehicular Communication Networks: Challenges and Solutions", in IEEE Communications Magazine . May 2011[2] S. Céspedes, X. (Sherman) Shen. “An Efficient Hybrid HIP-PMIPv6 Scheme for Seamless Internet Access in Urban Vehicular Scenarios", in Proc. GLOBECOM. 2010.
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Mobility Management
Intra-domain handover for HIP-enabled nodes
Inter-domain handover for HIP-enabled nodes
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Mobility Management• Analytical evaluation
Mobile network analysisAnalysis of signalling cost per vehicle:Localization updates and Packet deliveryFluid Flow ModelComparison to NEMO BS.
Mobile node analysisAnalysis per node (legacy & HIP-enabled):Handover delay and expected number of packets droppedDelay analysis during handover processComparison to NEMO, MIP, HIP and Novackzi
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Mobility ManagementIntra-domain handover Inter-domain handover
Signalling and packet delivery cost
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Mobility Management
3. Multi-hop PMIPv6 for vehicular scenarios
Extension of RSU area of coverageEnabling IP mobility over mesh-under routed networks
[3] M. Asefi, S. Céspedes, X. (Sherman) Shen., J. Mark. "A Seamless Quality-Driven Multi-Hop Data Delivery Scheme for Video Streaming in Urban VANET Scenarios", in Proc. IEEE ICC 2011. Kyoto, Japan. [4] S. Céspedes, X. (Sherman) Shen. “A Framework for Ubiquitous IP Communications in Vehicle to Grid Networks”, workshop UbicoNet, Globecom 2011, Submitted.
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Mobility Management
Inter-PAN handover
Performance evaluation
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Related work in Vehicular Networking• Privacy and security
– S. Taha, and X. Shen, "Anonymous Home Binding Update scheme for Mobile IPv6 Wireless Networking", Proc. IEEE Globecom'11, Houston, Texas, USA, Dec. 5-9, 2011.
– R. Lu, X. Lin, T. H. Luan, X. Liang, and X. Shen, "Pseudonym Changing at Social Spots: An Effective Strategy for Location Privacy in VANETs", IEEE Transactions on Vehicular Technology, to appear.
• Application– T.H. Luan, L.X. Cai, J. Chen, X. Shen, and F. Bai, "VTube: Towards the Media Rich City Life with
Autonomous Vehicular Content Distribution", Proc. IEEE SECON'11, Salt Lake City, Utah, USA, June 27-30, 2011.
– . Bi, L. X. Cai, X. Shen, and H. Zhao, "Efficient and Reliable Broadcast in Inter-Vehicle Communications Networks: A Cross Layer Approach", IEEE Trans. on Vehicular Technology, Vol. 59, No. 5, pp. 2404-2417, 2010.
• Traffic and mobility– K. Ota, M. Dong, H. Zhu, S. Chang, and X. Shen, "Traffic Information Prediction in Urban Vehicular
Networks: A Correlation Based Approach", Proc. IEEE WCNC'11, Cancun, Quintana-Roo, Mexico, March 28-31, 2011.
– W. Alasmary and W. Zhuang, "Mobility impact in IEEE 802.11p infrastructureless vehicular networks ad hoc networks," Ad Hoc Networks, to appear.
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Current Work and Open issues
• Analysis of relay-based communication over 802.11p/WAVE
• Feasibility of IP communications over “constrained” vehicular networks
General Open Issues
• Balancing between high-priority safety info and user demands for infotainment applications• Merging of dedicated VANET technologies (e.g., 801.11p) and other RAN (e.g., LTE, WiMAX)• Optimization of system performance of VANETs using traffic-flow approaches
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More open issues
– IP addressing allocation scheme– IP mobility protocols interworking with privacy
preserving schemes– IP protocols performance under non-bidirectional
conditions– Route optimization for IP mobility
Thanks
Contact: slcesped@uwaterloo.ca
MOBOPTS RG – 81st IETF meeting, Québec, Canada
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