https://scholars.lib.ntu.edu.tw/handle/123456789/499255
標題: | On the optimization of user-centric energy-efficient C-RAN | 作者: | Lin, J.-Y. Lee, C.-H. HEN-WAI TSAO |
公開日期: | 2016 | 來源出版物: | 2016 IEEE International Conference on Communications, ICC 2016 | 摘要: | Since 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. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/499255 | DOI: | 10.1109/ICC.2016.7511357 | SDG/關鍵字: | Competition; 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 efficiency |
顯示於: | 電機工程學系 |
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