Minimizing Energy Consumption Through Traffic Offloading in HetNets With Two-Class Traffic

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In this letter, we propose a traffic offloading method to minimize the energy consumption of two-tier heterogeneous networks that support two classes of packets with different delay requirements. We derive a scheme to determine the optimal base station (BS) association biases that minimize the packet delays given an energy consumption. By employing the scheme iteratively, we can determine the minimum network energy consumption required in satisfying simultaneously different delay requirements of two packet classes. Numerical results confirm that, by means of optimal BS association biases, the desired packet delays can be achieved with a lower network energy consumption when compared with the case of not controlling BS association biases. This result arrives at a conclusion that traffic offloading with optimal BS association biases can lead to network energy saving.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-08
Language
English
Article Type
Article
Keywords

NETWORKS

Citation

IEEE COMMUNICATIONS LETTERS, v.19, no.8, pp.1394 - 1397

ISSN
1089-7798
DOI
10.1109/LCOMM.2015.2443810
URI
http://hdl.handle.net/10203/205633
Appears in Collection
EE-Journal Papers(저널논문)
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