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Submitted on: 29 April 2011.
Revised on: 11 August 2011.
Accepted on: 23 September 2011.
___________________IEEE Wireless Communications Letters
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Submitted on: 08 June 2023.
Revised on: 01 August 2023.
Accepted on: 15 August 2023.
___________________IEEE Wireless Communications Letters
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Submitted on: 12 August 2019.
Revised on: 17 November 2019.
Accepted on: 31 December 2019.
___________________IEEE Wireless Communications Letters
Submitted on: 28 December 2011.
Revised on: 15 April 2012.
Accepted on: 13 May 2012.
___________________IEEE Wireless Communications Letters
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