This paper presents some key considerations for modeling of over-sea radio-wave propagations in 5GHz band. The summarized\ninformation is based on a series of measurement campaigns which were recently carried out in the tropical maritime environments\nnear Singapore. Multiray propagations and ducting of radio waves have been highlighted and considered in over-sea path loss\nmodeling and prediction. It is noted that the sea-surface reflection is an important contribution in the received field, while the duct\nlayers could enhance the radio-wave propagations. Our studies also show that the refracted ray inside evaporation duct could be a\nstrong ray for short-range near sea-surface applications and needs to be properly evaluated.
Loading....