Submitted on: 22 December 2001.
Revised on: 27 February 2002.
Accepted on: 15 April 2002.
___________________IEEE Circuits and Systems Magazine
Submitted on: 19 August 2022.
Revised on: 30 November 2022.
Accepted on: 18 January 2023.
___________________IEEE Circuits and Systems Magazine
Submitted on: 26 February 1999.
Revised on: 10 April 1999.
Accepted on: 25 April 1999.
___________________IEEE Circuits and Systems Magazine
Submitted on: 18 October 2008.
Revised on: 30 November 2008.
Accepted on: 29 January 2009.
___________________IEEE Circuits and Systems Magazine
Submitted on: 22 November 2011.
Revised on: 19 December 2011.
Accepted on: 03 January 2012.
___________________IEEE Circuits and Systems Magazine
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Submitted on: 14 January 2008.
Revised on: 01 March 2008.
Accepted on: 17 April 2008.
___________________IEEE Circuits and Systems Magazine
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Submitted on: 11 November 2013.
Revised on: 01 March 2014.
Accepted on: 22 April 2014.
___________________IEEE Circuits and Systems Magazine