Safety-message routing in vehicular ad hoc networks

The safety-message dissemination problem for vehicular ad hoc networks (VANETs) was investigated. Four novel techniques were contributed for the efficient and reliable routing of safety messages in the vehicular ad hoc networks. The instant-broadcast technique was proposed to improve the end-to-end dissemination delay. The lane-based sectoring mechanism was presented for the collision mitigation in the dense-urban traffic scenario. The negative acknowledgment with smart neighborhood (NSN) technique was proposed to ensure the reliability of reception through recovering the packet loss caused by interference. Finally, the negative acknowledgment with smart neighborhood - hole recovery (NSN-H) technique was presented to provide guaranteed reception of the safety message at each individual node in the VANET. The investigation of the safety message routing in VANET conducted in this research also revealed the significance of hitherto-neglected factors that influence the vehicular network. Significance of the small payload size of the VANET safety message, the effect of road width on the multi-hop relay, and the attenuation caused by vehicles in the propagation path were among the important revealed factors.

Department dc:contributor.department

Electrical and Computer Engineering

Grantor dc:publisher

Georgia Institute of Technology

Year dc:date.issued

2013

Author dc:creator

• Khan, Faisal Ahmad

Advisors dc:contributor.advisor

• Copeland, John A.
• Chang, Yusun

Committee members dc:contributor.committeemember

• Ammar, Mostafa
• Beyah, Raheem
• Owen, Henry
• Riley, George

• VANETs
• Routing
• Safety message
• Broadcast

Handle dc:identifier.uri

http://hdl.handle.net/1853/47743

OAI identifier oai:identifier

oai:repository.gatech.edu:1853/47743