Abstract
Rapid evolution of wireless communication systems coupled with the spread of handheld devices such as smartphones and tablets, along with their associated power-hungry applications, account for major consumption of battery energy. A new paradigm in research aiming at prolonging battery life of such devices has emerged in the form of wireless energy harvesting. As a result, this research aims at deriving an optimal time-split factor between energy harvesting, information processing and transmission. In this paper, first, an optimal time-split factor between energy harvesting and information transmission/reception is derived in the case of full-duplex transmission for symmetric traffic and asymmetric traffic. Second, a closed-form mathematical expression is derived for delay constraint traffic as well as elastic traffic services. Third, the constraints imposed by traffic profiles were considered. Thus, mathematical expression tends itself to realistic and practical analysis of long-term evolution systems, as evidenced by the results presented.
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