Popis: |
Terahertz (THz) band communications enables high data traffic and superior communication speed for future generation technologies. However, many challenges have not been yet studied for this technology. These challenges relate to the power limits and propagation losses that govern the use of THz in short-range communications. The use of ultra-massive multiple input multiple output (UM-MIMO) antenna systems also reduce the THz band propagation loss and which leads to improve system capacity dramatically. This chapter will introduce the key fundamental aspects of UM-MIMO antenna system and plasmonic nano-antenna array. Due to the very small size of the THz plasmonic antenna, the properties of nanomaterial will be achieved, which enables the deployment of large plasmonic arrays in very small areas. The chapter discusses many design aspects, mathematical model, implementation challenges and applications of THz ultra-massive MIMO. |