Submitted on: 19 January 2015.
Revised on: 09 March 2015.
Accepted on: 24 March 2015.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
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Submitted on: 04 September 2008.
Revised on: 23 October 2008.
Accepted on: 13 December 2008.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
Submitted on: 06 July 2011.
Revised on: 10 October 2011.
Accepted on: 16 November 2011.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
Submitted on: 10 September 2002.
Revised on: 26 October 2002.
Accepted on: 16 November 2002.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
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Submitted on: 08 May 2003.
Revised on: 25 July 2003.
Accepted on: 12 September 2003.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
Submitted on: 31 March 2022.
Revised on: 23 July 2022.
Accepted on: 03 August 2022.
___________________COMPUTER COMMUNICATIONS---ELSEVIER
Submitted on: 25 November 2012.
Revised on: 04 March 2013.
Accepted on: 20 April 2013.
___________________COMPUTER COMMUNICATIONS---ELSEVIER