Submitted on: 07 July 1998.
Revised on: 26 September 1998.
Accepted on: 30 October 1998.
___________________Foundations and Trends in Communications and Information Theory
Submitted on: 17 June 2000.
Revised on: 10 July 2000.
Accepted on: 31 August 2000.
___________________Foundations and Trends in Communications and Information Theory
Submitted on: 09 July 2013.
Revised on: 06 September 2013.
Accepted on: 21 September 2013.
___________________Foundations and Trends in Communications and Information Theory
Submitted on: 23 December 2006.
Revised on: 17 February 2007.
Accepted on: 08 March 2007.
___________________Foundations and Trends in Communications and Information Theory
Submitted on: 07 March 2005.
Revised on: 09 April 2005.
Accepted on: 25 April 2005.
___________________Foundations and Trends in Communications and Information Theory
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