Energy efficiency optimization in wireless networks

Abstract : The main objective of the thesis was to establish a framework for energy-efficient communication by defining and justifying novel energy-efficiency metrics for various wireless systems and settings. In general, the energy-efficiency is defined as the ratio of the total data rate to the total power consumed at the transmitter. This definition implies that, when re-transmission is allowed (in the case of outage), maximizing energy-efficiency can directly lead to minimizing the energy spent in transmitting a unit of information. This work develops a framework for energy-efficiency for the general cases of power control in the physical layer with MIMO and cross-layer with a sporadic packet arrival. Both centralized and decentralized algorithms for achieving an energy-efficient working point for the systems under consideration were proposed. The results highlight the trade-off between power consumption and date rates in energy efficient wireless networks.
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Vineeth Satheeskumar Varma. Energy efficiency optimization in wireless networks. Other [cond-mat.other]. Université Paris Sud - Paris XI, 2014. English. ⟨NNT : 2014PA112123⟩. ⟨tel-01124376⟩

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