Dynamic spatial-temporal propagation measurement and super-resolution channel characterisation at 5.2 GHz in a corridor environment

Abstract

This paper presents the analysed results from a dynamic spatial-temporal measurement campaign conducted at 5.2 GHz in a corridor environment within a modern building. The single-input-multiple-output (SIMO) measurement was performed by moving the transmitting antenna with a specialised trolley along a predefined route, while the receiving linear array was fixed at one location. Subsequent post-processing was conducted using the 2-D Unitary ESPRIT (Estimation of Signal Parameters via Rotational Invariance Techniques) super-resolution algorithm to extract the direction-of-arrival (DoA) and time-delay-of-arrival (TDoA) of the multipath components. The corridor was then characterised in terms of delay spread, azimuth spread, K-factor and coherence bandwidth. It was found that the corridor favours a wave-guiding effect whereas locations adjacent to the corridor enjoy the leakage of energy from the waves propagating along the corridor. The dynamic power delay spectra are shown. Finally, the correlations between the delay spread, azimuth spread and coherence bandwidth are assessed.