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Resource Allocation for Maximizing Energy Efficiency in Energy Harvesting Networks with Channel Estimation Error
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 Title & Authors
Resource Allocation for Maximizing Energy Efficiency in Energy Harvesting Networks with Channel Estimation Error
Lee, Kisong; Hong, Jun-Pyo;
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 Abstract
Recently, energy harvesting technology is considered as a tool to improve the lifetime of sensor networks by mitigating the battery capacity limitation problem. However, the previous work on energy harvesting has failed to provide practical information since it has assumed an ideal channel knowledge model with perfect channel state information at transmitter (CSIT). This paper proposes an energy efficient resource allocation scheme that takes account of the channel estimation process and the corresponding estimation error. Based on the optimization tools, we provide information on efficient scheduling and power allocation as the functions of channel estimation accuracy, harvested energy, and data rate. The simulation results confirm that the proposed scheme outperforms the conventional energy harvesting networks without considering channel estimation error in terms of energy efficiency. Furthermore, with taking account of channel estimation error, the results provides a new way for allocating resources and scheduling devices.
 Keywords
Energy Efficiency;Energy Harvesting;Channel Estimation;Resource Allocation;
 Language
Korean
 Cited by
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