TY - JOUR
T1 - Energy Consumption Minimization for FiWi Enhanced LTE-A HetNets with UE Connection Constraint
AU - Liu, Jiajia
AU - Guo, Hongzhi
AU - Fadlullah, Zubair Md
AU - Kato, Nei
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (61372073, 61373043, 61202394, 61472367, and 61432015),in part by China 111 Project (B16037), and in part by the Fundamental Research Funds for the Central Universities (JB150311).
Publisher Copyright:
© 2016 IEEE.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2016/11
Y1 - 2016/11
N2 - The fiber-wireless (FiWi) enhanced LTE-A HetNet, which consists of fiber optic networks as its backhaul and LTE-A HetNets as its wireless front-end, is regarded as a promising technique for a 5G radio access network to host large-scale mobile data transmission. In order to reduce the energy consumption of a FiWi enhanced LTE-A HetNet, we should offload the traffic of lightly loaded BSs to other active BSs and turn them into sleep state, while in order to provide stable service to more user equipments (UEs), we should put as many BSs into active state as possible. Obviously, there is a trade-off between minimizing the energy consumption and maximizing the number of UEs associated with the BSs. However, previous research works either focused on energy consumption minimization or placed emphasis on UE connection maximization, and few of them integrate these two parts together and give an optimal solution. Toward this end, this article studies the issues in energy consumption minimization with the UE connection constraint in FiWi enhanced LTE-A HetNets, and propose a heuristic greedy solution to find an optimal list of active BSs and their associated UEs.
AB - The fiber-wireless (FiWi) enhanced LTE-A HetNet, which consists of fiber optic networks as its backhaul and LTE-A HetNets as its wireless front-end, is regarded as a promising technique for a 5G radio access network to host large-scale mobile data transmission. In order to reduce the energy consumption of a FiWi enhanced LTE-A HetNet, we should offload the traffic of lightly loaded BSs to other active BSs and turn them into sleep state, while in order to provide stable service to more user equipments (UEs), we should put as many BSs into active state as possible. Obviously, there is a trade-off between minimizing the energy consumption and maximizing the number of UEs associated with the BSs. However, previous research works either focused on energy consumption minimization or placed emphasis on UE connection maximization, and few of them integrate these two parts together and give an optimal solution. Toward this end, this article studies the issues in energy consumption minimization with the UE connection constraint in FiWi enhanced LTE-A HetNets, and propose a heuristic greedy solution to find an optimal list of active BSs and their associated UEs.
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U2 - 10.1109/MCOM.2016.1600169CM
DO - 10.1109/MCOM.2016.1600169CM
M3 - Article
AN - SCOPUS:84999114904
VL - 54
SP - 56
EP - 62
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
SN - 0163-6804
IS - 11
M1 - 7744809
ER -
