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In wireless communication systems powered by harvested energy, besides the channel fading, there is another dimension of dynamics induced by energy arrival variations, which makes the design of wireless transmission policies nontrivial. In this paper, we propose a framework for analyzing the energy harvesting powered wireless transmissions where the channel fading and the energy arrival variations...
The rapidly-increasing high data rate wireless networks and the fast-growing smartphone techniques are continually changing our daily behaviors and coloring our life. However, in order to fully experience the high rate broadband multimedia services, prolonging the battery life of user equipment is critical for the mobile users, especially for the smartphone users. In this work, the problem of offloading...
This paper considers a downlink cellular network with two base stations (BSs) powered by harvested energy to cooperatively serve two users. To tackle the problem that BSs are of different energy arrival rates, each transmission frame is divided into two subframes, i.e., in the first subframe, one of the BSs keeps silent for some time to store energy while the other transmits to one of the users, and...
In order to fully exploit the high speed broadband multimedia services, prolonging the battery life of user equipment (UE) is critical from user's perspective, especially for the smartphone users. A collaborative mobile cloud (CMC), which consists of several UEs offers one potential solution for reducing the energy consumption at the terminal side. In this paper, an OFDMA mobile cloud system with...
This paper presents the power allocation solution in single link Multi-Input Multi-Output (MIMO) wireless communication systems powered by harvested energy. We first derive the channel capacity with non-causal full information in a finite time horizon, which is shown to be a convex optimization problem. The optimal power allocation can be obtained through Spatial-Temporal Water-Filling (ST-WF) solution,...
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