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Submitted on: 01 June 2011.
Revised on: 19 July 2011.
Accepted on: 30 August 2011.
___________________IEEE Wireless Communications Letters
Submitted on: 06 February 2005.
Revised on: 18 April 2005.
Accepted on: 19 May 2005.
___________________IEEE Wireless Communications Letters
Submitted on: 27 October 2000.
Revised on: 04 January 2001.
Accepted on: 04 March 2001.
___________________IEEE Wireless Communications Letters
Submitted on: 25 October 2007.
Revised on: 30 November 2007.
Accepted on: 11 January 2008.
___________________IEEE Wireless Communications Letters
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Submitted on: 26 September 2020.
Revised on: 10 November 2020.
Accepted on: 03 December 2020.
___________________IEEE Wireless Communications Letters
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