Affiliations: [a] College of Communication Engineering, Chongqing University, Chongqing, China | [b] Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunication, Chongqing, China
Correspondence:
[*]
Corresponding author: Zhanjun Liu, College of Communication Engineering, Chongqing University, Chongqing 400030, China. E-mail:Liuzj@cqupt.edu.cn
Abstract:
This paper presents a downlink proportional fairness centralized processing
resource allocation algorithm to enhance the throughput and guarantee the
fairness in wireless networks for the C-RAN (Collaborative Radio Access
Network) systems. The proposed sub-carrier allocation algorithm utilizes the
baseband resource pool of C-RAN to achieve the centralized allocation of
sub-carriers. In order to reduce the interference of edge users that share
the same sub-carrier, and enhance the system throughput, the most shared
sub-carriers are allocated to the user of central cell. The system
throughput can be improved at the sacrifice of fairness decrement.
Simulation results show that the proposed algorithm can obtain better
performance in throughput than conventional downlink algorithms.
