An Efficient Channel Distribution in 5G Heterogeneous Cellular Networks For Eluding Cross-Tier Interference in Macro and Small Cells

Ahmed Qaddus, Shahzad Hassan, Abid Ali Minhas

Abstract


In recent times it has been witnessed that the necessity of user data rate traffic has been increased for running high bandwidth real time video on demand applications. Therefore the way forward towards the future wireless networks technology is 5G Heterogeneous Cellular Networks. The 5G Heterogeneous Cellular Networks mainly comprises of two network hierarches. In first hierarchy there are Macro base stations with large macro cells which are serving macro users. In second hierarchy there are femto base stations referred as small cells which are serving femto users. The 5G Heterogeneous Cellular Networks encourages the use of large macro and small cells for better and efficient utilization and distribution of channel resources. In this study the Authors, have proposed an efficient RF channel distribution mechanism on the basis of FUE and MUE current SINR levels in 5G Heterogeneous Cellular Networks. On the basis of user present SINR levels the channels will be allocated by the Central MBS to MUEs and FUEs via FBS upon the user real time traffic demands. The major hurdle in RF channel allocation to FUEs and MUEs is cross tier interference at the downlink channel at the MUEs and FUEs from the transmitted signals of MBS and FBS. In this research an efficient RF channel allocation scheme is proposed on the basis of channel modeling constraints which will minimize the cross tier interference at the downlink channel at the MUEs and FUEs during RF channel allocation to FUEs and MUEs present in the same coverage area of Macro and small cell.   

Keywords:

5G Heterogeneous Cellular Networks; Centralized MBS; Femto Base Station (FBS); Small Cell; Macro Base Station (MBS); Macro Cell; Radio Frequency (RF); Macro User Equipment (MUE); Femto User Equipment (FUE); Signal to Interference plus Noise Ratio (SINR);

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Developed by Institute of Industrial Electronics and Electrical Engineering of RIGA TECHNICAL UNIVERSITY