Project IEEE 802.16 Broadband Wireless Access Working Group Title Recommendation on LMDS Radio Propagation Channel Models Date
Soma Pitchaiah · 2000
This paper recommends static as well as time varying radio channel impulse response models based on the measurements conducted in Singapore for LMDS. Also blockage classification based on the excess loss and a relationship between delay spread and excess loss were reported. The assumptions made in the modeling include: (1) Line of sight condition exists between transmitter hub and receiver antenna; (2) Complete blockage of receiver and heavy rain conditions were not considered; (3) multipath components below –25dB compared to direct LOS signal were excluded. Purpose To provide an input to the physical layer task group specific criterion called “robustness to channel impairments – multipath fading”