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Wireless Powered Mobile Edge Computing Offloading Or Local Computation?

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Document pages: 5 pages

Abstract: Mobile-edge computing (MEC) and wireless power transfer are technologies thatcan assist in the implementation of next generation wireless networks, whichwill deploy a large number of computational and energy limited devices. In thisletter, we consider a point-to-point MEC system, where the device harvestsenergy from the access point s (AP s) transmitted signal to power theoffloading and or the local computation of a task. By taking into account thenon-linearities of energy harvesting, we provide analytical expressions for theprobability of successful computation and for the average number ofsuccessfully computed bits. Our results show that a hybrid scheme of partialoffloading and local computation is not always efficient. In particular, thedecision to offload and or compute locally, depends on the system s parameterssuch as the distance to the AP and the number of bits that need to be computed.

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