Performance Analysis of Fluid Antenna Multiple Access (FAMA) for 6G

Recently, there has been interest in fluid antenna system (FAS) as a potential 6G technology. Any fluidic, conductive, or dielectric structure that can be software-controlled and manipulated to change its form and position to reorganize channel is referred to as a fluid antenna (FA). Fluid antenna multiple access (FAMA) allows each user to continually migrate to port with greatest signal-to-interference ratio (SIR) using a single RF-chain port FA. Without requiring complex signal processing, FAMA finds an appropriate channel state for the needed signal by taking use of the profound attenuation moments in the interference. A performance analysis of FAMA for 6G is carried out in this study. The average outage rate and outage probability are used to assess the performance. Additionally, we provide upper and lower limitations on FAMA’s multiple access gain. The equations for average outage capacity and outage probability for SIR are obtained. Furthermore, numerical results are provided to examine effectiveness of FAMA and validate analytical investigation.