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In this paper, the authors present a mathematical framework that permits an accurate performance analysis, both in terms of average throughput and energy efficiency, of Bluetooth link performance in fading channels. Conversely to most part of the literature concerning Bluetooth performance, this analysis takes into consideration the microscopic level power-saving mechanisms introduced in Bluetooth specifications to reduce the energy consumption during active mode. The analysis makes use of a two-state Markov chain to distinguish the transmission of useful and duplicate packets by the master. Then, the average energy spent, the amount of data exchanged and the time elapsed for each transition of the Markov chain, are derived.
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