Title :
Empirical characterization of wideband indoor radio channel at 5.3 GHz
Author :
Kivinen, Jarmo ; Zhao, Xiongwen ; Vainikainen, Pertti
Author_Institution :
Helsinki Univ. of Technol., Espoo, Finland
fDate :
8/1/2001 12:00:00 AM
Abstract :
Characteristics of wideband indoor radio channel at 5.3 GHz were defined based on an extensive measurement campaign using a wideband channel sounder with 19 ns delay resolution. Pathloss exponents were 1.3-1.5 in LOS and 2.9-4.8 in non-line of sight (NLOS). Large difference in NLOS exponents was due to different dominating propagation mechanisms in different types of building structures. The delay dispersion was characterized by cumulative distribution functions (CDF) of the RMS delay spreads, the values for CDF=0.9 varied from 20 to 180 ns in different setups in an office building and large hall environments. The correlation functions of the radio channel in spatial and frequency domains were extracted. Small scale models for five typical indoor scenarios were developed using tapped delay lines
Keywords :
broadband networks; delay lines; delays; electromagnetic wave absorption; indoor radio; losses; microwave propagation; radio networks; statistical analysis; telecommunication channels; wireless LAN; 20 to 180 ns; LOS exponents; NLOS exponents; RMS delay spread; SHF; WLAN system; building structures; correlation functions; cumulative distribution functions; delay dispersion; delay resolution; frequency domain; large hall environment; line of sight; nonline of sight; pathloss exponents; radio channel; radiowave propagation mechanisms; small scale models; spatial domain; statistical analysis; tapped delay lines; wideband channel sounder; wideband indoor radio channel; Acoustic propagation; Broadband antennas; Buildings; Delay lines; Finite difference methods; Frequency estimation; Indoor radio communication; Microwave propagation; Ray tracing; Wideband;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
