TeraHertz Communication and Associated Challenges in 6G Cellular Networks

Due to the rapid growth of connected devices, the demand of high data rate services have also increased, which has been a major enabler for the evolution of wireless technologies from the past decade. Wireless communication at the TeraHertz (THz) frequency band is considered as one of the key technologies of 6th Generation cellular networks (6G). Owing to the availability of the wider bandwidth, the THz frequencies can provide significant increase in wireless capacity to support multi Gigabit-per-second (Gbps) data rates and maintaining highly secure transmission. Despite of numerous advantages of using THz communications, there are some challenges associated with THz communications that degrade the performance of wireless system. These challenges include increased interference, co-tier interference, effect of blockages, fading, molecular absorption loss and higher path loss etc. In this paper, we have investigated the significance of a THz band enabled 6G cellular network and have also highlighted some critical issues and challenges that should be taken into consideration when deploying THz enabled 6G cellular network. Our contribution, is presentation of a consolidated and summarized overview on various use cases, applications and challenges of THz communication enabled in 6G Cellular Networks.