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Energy-Effective Power Control Algorithm with Mobility Prediction for 5G Heterogeneous Cloud Radio Access Networkopen access

Authors
Park, HyebinLim, Yujin
Issue Date
Sep-2018
Publisher
MDPI
Keywords
5G; heterogeneous cloud radio access network; vehicular mobility; remote radio head switching operation
Citation
SENSORS, v.18, no.9
Journal Title
SENSORS
Volume
18
Number
9
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/4301
DOI
10.3390/s18092904
ISSN
1424-8220
1424-3210
Abstract
In 5G networks, heterogeneous cloud radio access network (H-CRAN) is considered a promising future architecture to minimize energy consumption and efficiently allocate resources. However, with the increase in the number of users, studies are performed to overcome the energy consumption problems. In this study, we propose a power control algorithm with mobility prediction to provide a high-energy efficiency for 5G H-CRAN. In particular, the proposed algorithm predicts UE mobility in vehicular mobility scenarios and performs remote radio head (RRH) switching operations based on % prediction results. We formulate an optimization problem to maximize the energy efficiency while satisfying the outage probability requirement. We then propose an RRH switching operation based on Markov mobility prediction and optimize the transmission power based on a gradient method. Simulation results demonstrate the improved energy efficiency compared with those of existing RRH switching-operation algorithms.
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공과대학 (인공지능공학부)
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