In wireless communication, the exchange of data traffic has increased significantly in modern days as the public produces, transmits, and uses this information. Following this transformation, the demand for faster wireless networking has been increasing rapidly that can be utilized anywhere. Wireless data amount has quadrupled in the course of recent many years, moving toward the limit of wired
... [Show full abstract] transmission organizations. If the current patterns proceeds, wireless Terabit-per-second (Tbps) connections are supposed to be the reality in the following five to ten years. Advanced physical layer technologies, particularly current spectral bands, would be needed to help these amazingly high data rates. Terahertz (THz) band networking is imagined as a basic wireless innovation to address this demand, easing bandwidth depletion and power limitations in current wireless networks and empowering a huge number of applications in a wide scope of areas. Terahertz is a spectral band with frequencies ranging from 0.1 THz to 10 THz. The frequencies ranges above and below of this band have gotten a lot of interest, but this is the band that is the least researched. This chapter explores the THz band communication systems and their features for future wireless communication.