Dual polarized MIMO LMS channel measurements and characterization in a pedestrian environment

This paper presents the results of a dual polarized multiple-input-multiple-output (MIMO) channel measurements, investigating a land mobile satellite (LMS) pedestrian scenario in an urban environment. The channel characterization considers the downlink from a fixed elevated position, emulating a satellite, to a mobile terminal, incorporating line-of-sight (LOS) and non-line-of-sight (NLOS) conditions, and low elevation angles. From the extracted results, the length of quasi-stationarity regions of the channel is 13 times larger than the coherence distance. The average coherence time is found 71 ms. Finally, from the capacity analysis, the ergodic capacity of the dual polarized MIMO channel is found 4.3 and 4.1 b/s/Hz, for LOS and NLOS propagation conditions, respectively.