Multipath delay spread and signal level measurements for indoor wireless radio channels at 62.4 GHz

This paper reports the 62.4 GHz fixed wideband propagation measurements undertaken in six different LOS indoor environments (corridors and rooms) inside three buildings. Measurement analyses are presented in respect of static RMS delay spreads and received signal level. Uniformity of delay spread was observed for all the cases investigated. A correlation is observed with the static delay spread increasing monotonically with increasing base-portable receiver antennas separation. For low values of the received signal level the delay spread values are relatively high and vice-versa. It has been observed that important indoor radio channel characteristics are determined by the principal structure of the environments and do not depend significantly on minor details like furniture and room fixtures