Submitted on: 03 April 2020.
Revised on: 13 May 2020.
Accepted on: 10 July 2020.
___________________IEEE Vehicular Technology Magazine
Submitted on: 02 March 2013.
Revised on: 22 April 2013.
Accepted on: 09 June 2013.
___________________IEEE Vehicular Technology Magazine
Submitted on: 06 May 2006.
Revised on: 24 July 2006.
Accepted on: 27 August 2006.
___________________IEEE Vehicular Technology Magazine
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Submitted on: 21 January 2003.
Revised on: 10 April 2003.
Accepted on: 10 May 2003.
___________________IEEE Vehicular Technology Magazine
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Submitted on: 03 June 2007.
Revised on: 30 September 2007.
Accepted on: 11 November 2007.
___________________IEEE Vehicular Technology Magazine
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