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Energy Harvesting Wireless Communications: A Review of Recent Advances
This article summarizes recent contributions in the broad area of energy
harvesting wireless communications. In particular, we provide the current state
of the art for wireless networks composed of energy harvesting nodes, starting
from the information-theoretic performance limits to transmission scheduling
policies and resource allocation, medium access and networking issues. The
emerging related area of energy transfer for self-sustaining energy harvesting
wireless networks is considered in detail covering both energy cooperation
aspects and simultaneous energy and information transfer. Various potential
models with energy harvesting nodes at different network scales are reviewed as
well as models for energy consumption at the nodes.Comment: To appear in the IEEE Journal of Selected Areas in Communications
(Special Issue: Wireless Communications Powered by Energy Harvesting and
Wireless Energy Transfer
Two-hop Communication with Energy Harvesting
Communication nodes with the ability to harvest energy from the environment
have the potential to operate beyond the timeframe limited by the finite
capacity of their batteries; and accordingly, to extend the overall network
lifetime. However, the optimization of the communication system in the presence
of energy harvesting devices requires a new paradigm in terms of power
allocation since the energy becomes available over time. In this paper, we
consider the problem of two-hop relaying in the presence of energy harvesting
nodes. We identify the optimal offline transmission scheme for energy
harvesting source and relay when the relay operates in the full-duplex mode. In
the case of a half-duplex relay, we provide the optimal transmission scheme
when the source has a single energy packet.Comment: 4 pages, 3 figures. To be presented at the 4th International Workshop
on Computational Advances in Multi-Sensor Adaptive Processing, Dec. 201
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