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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Energy-Aware Link Adaptation for a MIMO Enabled Cognitive System
verfasst von : Eren Eraslan, Babak Daneshrad, Chung-Yu Lou, Chao-Yi Wang
Erschienen in: Green IT: Technologies and Applications
Verlag: Springer Berlin Heidelberg
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Circuit designers have put substantial effort to reduce the energy consumption of specific blocks in wireless communication devices. However, much more significant increase in energy efficiency can be achieved at the system level by proper choice of transmission parameters. Choosing the best mode to transmit given the channel conditions in a wireless link is referred to as link adaptation. In this chapter, we present the state-of-the-art on link adaptation protocols for emerging Multiple-Input-Multiple-Output (MIMO) systems, and we provide a novel energy-aware fast link adaptation protocol which provides orders of magnitude gain in energy efficiency of the communication link.