Analysis of Subchannel Correlation in Dual-Polarised MIMO Systems via a Polarisation Diversity Scheme

Abstract

-A polarisation diversity combing scheme for dualpolarised Multiple-Input and Multiple-Output channels in small cell environments introduced and evaluated. The scheme is based on post analysis of channel measurement data captured from scenarios and includes indoor-to-indoor, indoor-to-outdoor, and indoor-outdoorindoor propagation. An analysis of link signal strength and correlation with respect to frequency and polarisation revealed profound differences between co-polarised and cross-polarised links in terms of received signal strength and correlation between frequencies. Utilising these differences, a polarisation diversity combing scheme is evaluated which is shown to produce an average of 10.6dB polarisation diversity gain.

A compact quasi‐omnidirectional slot antenna for Wi‐Fi 6E application

“…In particular, for multiple‐input‐multiple‐output (MIMO) devices, multiple antennas with quasi‐omnidirectional or bidirectional patterns can provide better coverage with the appropriate configuration for space diversity. Third, polarization has a significant effect on the signal strength, and vertically polarized antenna is more suitable to be deployed in the indoor environment 1 . There are many designs are proposed for the Wi‐Fi application.…”

“…Third, polarization has a significant effect on the signal strength, and vertically polarized antenna is more suitable to be deployed in the indoor environment. 1 There are many designs are proposed for the Wi-Fi application. The compact modified monopole antenna fed by microstrip or coplanar waveguide is a competitive candidate, [2][3][4] but the radiation performance may be degraded at the upper band.…”