Inter-cell Channel Allocation Between Small Cells and Macro Cell Based on Spectral Sensing Method in Heterogenous Cloud Radio Access Network (HCRAN) in 5G

In a Heterogenous Cloud Radio Access Network (H-CRAN), which consists of multiple access points (APs) providing smaller coverage and a high-power node (HPN) providing ubiquitous coverage, mobile machines can connect to multiple APs and a HPN by coordinated multi-point transmission (CoMP) concurrently to achieve ultra-reliable and low latency communication. However, the current network association (priorly known as handovers), which only focuses on switching between two base stations, may not be an efficient scheme in the H-CRAN. Coexistence of different cell types, Macro cell, Small cells and Remote Radio Heads (RRHs) are advantageous for Mobile Network Operators (MNOs) as this specific network association significantly increases network coverage, capacity, scalability, data rate, spectral and energy efficiency. In this work, proactive approach of workload allocation between small cell and microcell of H-CRAN is proposed and validated by the simulation model designed in INET 4.2 under OMNET ++ 5.5.1. The simulation results prove that the proposed method is evidently better than the existing method in terms of Access Point power, Diversity gain and End-to-End delay