UDC 621.396
PERFORMANCE ANALYSIS OF MIMO COMMUNICATION SYSTEM WITH DIFFERENTIAL CODING IN THE PRESENCE OF SCATTERERS
A. Yu. Parshin, Ph.D. (Tech.), associate professor, Department of Radio Engineering Devices, RSREU, Ryazan, Russia;
orcid.org/0000-0003-0110-3645, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V. Kh. Nguyen, post-graduate student, RSREU, Ryazan, Russia.
orcid.org/0009-0007-4515-2111, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
This paper studies the characteristics and performance of a communication system using differential space-time block coding in Rice channel. Channel capacity is analyzed in the presence of scatterers located in the region where transmitting and receiving devices are installed. A three-dimensional COST-259 compliant model of scatterer locations is used to estimate the changes in signal amplitude and phase during propagation. The aim of the study is to study system performance using differential block coding, which requires no estimation of channel matrix at a receiving end for different power ratios of direct beam and diffusion component. This work analyzes ergodic capacity and bit error probability as a function of signal-to-noise ratio when using differential coding. The results show the negative effect of scatterers on link efficiency and the advantages of differential coding with Alamouti coding.
Key words: : Internet of Things, MIMO, wireless sensor networks, differential space-time block coding, capacity, scatterers, Alamouti coding, COST-259, Rice factor.