Enhancement of Spectrum Detection in 5G Heterogeneous Network

Modern advancement of Long Term Evolution Advanced (LTE-A) in wireless communication industry is revolutionary to fulfill the high order expectations through extending the high system throughput and capacity. This is mainly due to the effects of the Orthogonal Frequency Division Multiplexing (OFDM), where both frequency and time division are employed in order to exploit the system capacity. However, in LTE-A Heterogeneous Network (HetNet), femtocells (HeNBs) are optimal choice to extend the coverage in indoor environment, whereas the deployment of such base station creates cross-tier and co-tier interferences with the macrocell users (MUE) becomes critical challenge. Therefore, the unutilized/idle spectrums reallocation is one of the solution to mitigate such challenges. However, the Enhanced Spectrum Detection (ESD) in such typical network is challenging. Trendy DSS networks, licensed secondary users (SUs) be able to gain assigned licensed spectrum band without any interference with primary users (PUs). This paper enhances the spectrum detection in LTE-A based Heterogeneous Networks (HetNets) using ESD mechanism. In ESD false alarms and missed detections are considered the performance metric. The result suggests that the performance of the spectrum detected is enhanced over existing method.