gets with high extreme data rates which require a highly efficient spectral utilization. The 6G communication system is expected to provide 100Bps [2, 7, 14, 15 ]. ITU has proposed a mobility rate of >1000 Km/hr. for 6G communication. To avoid hindrances in communication while traveling in high speed trains and planes the mobility rate should be high for the 6G communication [2, 7, 14, 15]. The possible 6G communication will be enabled with an advanced system such as a cell-free network, visible light communication, satellite integration, intelli- gent reflecting surfaces, and the like [2, 7, 14, 15]. 5G Wireless Communication System in Healthcare Informatics Until 2030 it is expected to have a large amount of data traffic because of the increase in wireless sensors, mobile, vehicular communication, and other AI- based gadgets for different applications to support this in 6G. The minimum area traffic capacity needed is 1000Mbps/m² [2, 7, 14, 15]. The expected latency rate for 6G communication would be <0.1 ms [2, 7, 14, 15]. 10.2 ENABLING TECHNOLOGIES FOR 6G COMMUNICATION SYSTEMS 10.2.1 SPECTRUM TECHNIQUES VLC: The visual light communication range is 400 THz to 800 THz. This range of the spectrum is license-free and can be used without any limit, free of cost. In this range, there is no EM interference, and it can be implemented by using LEDs which are available at a low cost. THz: In the terahertz range, the bandwidth spectrum is high and the size of the antenna is reduced [16-20]. 10.2.2 ANTENNA TECHNIQUES Reconfigurable Intelligent Surfaces (RIS): Reconfigurable intelligent surfaces are the artificial planar structures incorporated with an integrated cir- cuit to manipulate the incoming electromagnetic signals. RIS antennas can be made small, can be controlled, and are also suitable for a programmable radio propagation environment. Orthogonal Angular Momentum (OAM): Orthogonal angular momentum antennas are used for obtaining a higher bit rate. Lens Antenna: In photonics, the lens antenna is extremely directive