The performance of HAPS systems using a Multiple-Input Multiple-Output (MIMO) wireless link is analysed in this paper. The characteristics and key features of MIMO systems are discussed, especially when used for HAPS applications. The capacity improvement is examined, as the number of transmit and receive antennas is increased, while the BER of the system is reduced, since the total received power is higher than that using only one transmit and receive antennas (SISO).
['José Luis Cuevas-Ruíz', 'Alejandro Aragon-Zavala', 'Mario A. Lopez-Consospo']
MIMO Channels: An Approach for HAPS Communication Systems