Vol: 54(68) No: 1 / March 2009 A Survey of Power Saving Techniques for Wireless Communications Bogdan Stratulat Department of Computer Science, “Politehnica” University of Timisoara, Faculty of Automation and Computers, Bd. V. Pârvan no. 2, 300223, Timisoara, Romania, phone: (40) 256-403263, e-mail: bogdan.stratulat@cs.upt.ro Sebastian Fuicu Department of Computer Science, “Politehnica” University of Timisoara, Faculty of Automation and Computers, Bd. V. Pârvan no. 2, 300223, Timisoara, Romania, e-mail: sfuicu@cs.upt.ro Iulia Klein Department of Computer Science, “Politehnica” University of Timisoara, Faculty of Automation and Computers, Bd. V. Pârvan no. 2, 300223, Timisoara, Romania, e-mail: iulia@cs.upt.ro Marius Marcu Department of Computer Science, “Politehnica” University of Timisoara, Faculty of Automation and Computers, Bd. V. Pârvan no. 2, 300223, Timisoara, Romania, e-mail: mmarcu@cs.upt.ro Keywords: wireless communication, power consumption, wireless protocols, energy efficiency Abstract This survey covers two important applications of wireless communication power saving techniques: wireless sensor networks and mobile devices ad-hoc networks. The paper discusses recent advances in energy efficient wireless communication of battery powered devices. The authors identify major trends in power saving at different protocol layers and different nodes architectures. It is shown in the paper that maximum energy efficiency can be achieved addressing all protocol stack layers, including the application, therefore for maximum energy efficiency of wireless applications, power-aware application are needed. References [1] M. Stemm and Y.H. Katz, “1 Measuring and Reducing Energy Consumptio of Network Interfaces in Hand-Held Devices.” [2] A. Savvides, C. Han, and M.B. 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