On the analysis of propagation channel based on sub band approach

Next generation wireless personal area networks (WPAN) are intended for a variety of applications. The multiband OFDM alliance (MBOA) is currently developing a new physical layer (PHY) and medium access control (MAC) protocol, which fit the needs of this mass market. The MBOA standards provide wireless technology offering data rates of up to 480 Mbit/s [1]. Motivated by the sub-band approach, this paper presents measurement analysis of the mean (excess) delay, RMS delay spread and number of significants paths for different locations. First, we present the channel measurements based in this study. Secondly, the interpretation of the obtained results show a correlation between the channel bandwidth and the tow main dispersion parameters namely tau_rms and tau_m in all tested settings, Laboratory, Corridor and Outdoor. Our measurement included terminal separations of 1 - 14 meters, the based data are for terminal separation 6 m.