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Information 2016, 7(1), 3; doi:10.3390/info7010003

Cross-Entropy-Based Energy-Efficient Radio Resource Management in HetNets with Coordinated Multiple Points

Graduate School of Advanced Technology and Science, Tokushima University, Tokushima 770-8501, Japan
Communication Engineering Research Center (CERC), Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China
Author to whom correspondence should be addressed.
Academic Editor: Willy Susilo
Received: 1 November 2015 / Revised: 26 January 2016 / Accepted: 26 January 2016 / Published: 2 February 2016
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Energy efficiency and spectrum efficiency are the most important issues for future mobile systems. Heterogeneous networks (HetNets) with coordinated multiple points (CoMP) are wildly approved as a promising solution to meet increasing demands of mobile data traffic and to reduce energy consumptions. However, hyper-dense deployments and complex coordination mechanisms introduce several challenges in radio resource management (RRM) of mobile communication systems. To address this issue, we present an RRM approach for CoMP-based HetNets, which aims to maximize weighted energy efficiency while guaranteeing the data rate of each transmission. The proposed RRM approach is based on a cross-entropy (CE) optimization method that is an effective and low-complexity heuristic algorithm. Furthermore, we also give the implementations of the proposed RRM approach in centralized and decentralized mode, respectively. At last, extensive simulations are conducted to validate the effectiveness of the proposed schemes. View Full-Text
Keywords: cross-entropy (CE) method; heterogeneous network (HetNet); coordinated multipoint (CoMP); energy efficiency (EE) cross-entropy (CE) method; heterogeneous network (HetNet); coordinated multipoint (CoMP); energy efficiency (EE)

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yu, J.; Konaka, S.; Akutagawa, M.; Zhang, Q. Cross-Entropy-Based Energy-Efficient Radio Resource Management in HetNets with Coordinated Multiple Points. Information 2016, 7, 3.

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