1. NHSTA web page, Accessed on March 2016. URL http://www.nhtsa.gov.
2. Standard for information technology - telecommunications and information exchange between systems - local and metropolitan area networks-specific requirements part 11 - amendment 6: Wireless access in vehicular environment, 2010.
3. IEEE trial-use standard for wireless access in vehicular environments (WAVE) - multi-channel operation, 2006, doi: 10.1109/IEEESTD.2006.254109
4. ETSI-CEN cooperative intelligent transport systems standards, release 1 for early procurement, Accessed on March 2016.
5. LTE for vehicular networking: a survey;Araniti;Commun. Mag. IEEE,2013