Throughput Enhancement of C-RAN based on Adaptive

Abstract

C-RAN (Cloud Radio Access Network) structure is the most popular approach for 5G standard, it employs CoMP (Coordinated Multiple Points Transmission/Reception) to enhance frequency utilization and to increase throughput for cell-edge users. C-RAN mainly includes two parts: baseband units (BBU) and remote radio heads (RRH) for data processing and data transmission/receive respectively. In this paper we propose a new resource block allocation (spectrum allocation) scheme by the permutation and combination of BBUs, and we also use the CoMP (Coordinated Multiple Points Transmission/Reception) technique according to the different environment to improve the spectrum utilization and reduce resource waste in different environment. The simulation results expound that the scheme significantly enhances throughput and improves the spectrum utilization.