Lin, J.-Y.J.-Y.LinLee, C.-H.C.-H.LeeHEN-WAI TSAO2020-06-112020-06-112016https://scholars.lib.ntu.edu.tw/handle/123456789/499255Since mobile network operators not only need to satisfy user needs but also have to reduce operating cost (mainly electricity cost) to maintain long-term profitability under strict market competition, energy efficiency (EE), defined as capacity per energy cost, becomes a popular metric for designing mobile networks. For user-centric services, however, the metric of quality of experience (QoE) is more suitable than the metric of capacity or data rate. Therefore, in this paper, we consider a novel network design metric quality-energy efficiency (QEE), defined as the quality of experience achieved per energy consumed. By using QEE as the performance objective, we propose a framework to design user-centric green cloud-based radio access network (CRAN). In particular, the issues of fairness and fronthaul power consumption in C-RAN are taken into account. An efficient approach to solving the non-convex max-min optimization problem for the design of user-centric green C-RAN is proposed. Simulation results validate the near-optimal performance of the proposed algorithm and demonstrate the value of the proposed QEE metric for the design of energy-efficient user-centric CRAN. © 2016 IEEE.[SDGs]SDG7Competition; Costs; Design; Mobile telecommunication systems; Optimization; Quality of service; User centered design; Wireless networks; Market competition; Max-min optimizations; Mobile network operators; Near-optimal performance; Performance objective; Quality of experience (QoE); Radio access networks; User-centric service; Energy efficiencyconference paper10.1109/ICC.2016.75113572-s2.0-84981306195https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981306195&doi=10.1109%2fICC.2016.7511357&partnerID=40&md5=21082feb52a657f86d8fde865e1dd494