Performance evaluation of dual backhaul links RF/FSO for small cells of 5G cellular system

Abstract

<p>Radio frequency (RF) backhaul links between the wireless stations especially between small cells stations such as relay stations (RSs) are insufficient with high capacities and huge number of users for 5G cellular networks. An alternative solution is using free space optics (FSO) communications, however, there are limitations in this system. In this paper we proposed a mixed of RF link together with FSO link. Using hardselector between them and programmatically controlled according of quality of links to overcome the obstacles faced the transfer of high data. Based on the outage probability of each links an algorithm is proposed to select the optimal link and provide the power consumption with guaranteed high quality of the link. The analytical expressions for the outage probability and ergodic capacity are derived. The numerical results show the effectiveness of proposed model in terms of connectivity and capacity compared to other links.</p>

High rejection self-oscillating up-conversion mixer for fifth-generation communications

“…During social distancing, connectivity allows us to keep informed, continue working and maintain our mental and physical health balance [2]. As current communication systems cannot meet our needs, developing new communication systems for fifth-generation (5G) has become a great necessity [3]- [5]. And to achieve the performance promised by this new generation, new design approaches and semiconductor technologies are being adopted.…”