scholarly journals Energy Efficiency of Downlink Transmission Strategies for Cloud Radio Access Networks

2016 ◽  
Vol 34 (4) ◽  
pp. 1037-1050 ◽  
Author(s):  
Binbin Dai ◽  
Wei Yu
Keyword(s):  
Energy Efficiency ◽  
Access Networks ◽  
Downlink Transmission ◽  
Cloud Radio Access Networks ◽  
Radio Access Networks ◽  
Radio Access

scholarly journals Energy Efficiency Maximization for Full Duplex MIMO Cloud Radio Access Networks

2021 ◽  
Vol 3 (3) ◽  
pp. first
Author(s):  
Tien Ngoc Ha ◽  
Xuan-Xinh Nguyen ◽  
Hoang Kha Ha
Keyword(s):  
Energy Efficiency ◽  
Optimization Problems ◽  
Control Unit ◽  
Access Networks ◽  
Full Duplex ◽  
Maximization Problem ◽  
Limited Capacity ◽  
Cloud Radio Access Networks ◽  
Radio Access Networks ◽  
Radio Access

This paper studies a joint precoder and fronthaul compression design for full-duplex (FD) miltiple-input-multiple-output (MIMO) cloud radio access networks (CRANs). A cloud control unit (CU) communicates with multiple downlink and uplink users through FD radio units (RUs) connected to the CU through fronthaul links which are limited capacity. We address the energy efficiency (EE) maximization problem subject to the transmit power constraints at each RU, each user and the limited capacity of fronthaul links. Since the formulated design problem is a highly non-convex problem in design variables, we exploit a successive convex approximation (SCA) method to obtain the concave lower bound of the achievable sum rate and a convex upper bound of limited capacity fronthaul link functions. Then, we apply the Dinkelbach method to develop an efficient iterative algorithm guaranteeing convergence in which the convex optimization problems are solved. Numerical results are provided to investigate the EE of the proposed algorithm.

Energy Efficiency Maximization for Downlink Cloud Radio Access Networks With Data Sharing and Data Compression

2018 ◽  
Vol 17 (8) ◽  
pp. 4955-4970 ◽  
Author(s):  
Tung Thanh Vu ◽  
Duy Trong Ngo ◽  
Minh N. Dao ◽  
Salman Durrani ◽  
Duy H. N. Nguyen ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Data Compression ◽  
Data Sharing ◽  
Access Networks ◽  
Cloud Radio Access Networks ◽  
Radio Access Networks ◽  
Radio Access
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