Submitted on: 08 July 2011.
Revised on: 12 October 2011.
Accepted on: 02 November 2011.
___________________IEEE Internet of Things Journal
Submitted on: 12 September 2007.
Revised on: 30 November 2007.
Accepted on: 12 December 2007.
___________________IEEE Internet of Things Journal
Submitted on: 19 March 2010.
Revised on: 10 June 2010.
Accepted on: 29 June 2010.
___________________IEEE Internet of Things Journal
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Submitted on: 22 March 2021.
Revised on: 17 April 2021.
Accepted on: 21 May 2021.
___________________IEEE Internet of Things Journal