Title :
Time delay characteristics of 2.4 GHz band radio propagation channels in room environments
Author :
Zhang, Y.P. ; Hwang, Y.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
The paper presents the measured time delay characteristics of 2.4 GHz band radio propagation channels in room environments. The measurements were made using the swept frequency technique with a different calibration method. The analysis of the average measured power-delay profiles reveals that the rms delay spread is less than 50 ns when the receive antenna (RA) is in the lit region and can be as large as 217 ns when the RA is in the shadow region. A simple wide band channel model is also recommended for the in-room environments
Keywords :
indoor radio; 2.4 GHz; 2.4 GHz band radio propagation channels; UHF; average measured power-delay profiles; calibration method; in-room environments; lit region; receive antenna; rms delay spread; room environments; shadow region; swept frequency technique; time delay characteristics; wide band channel model; Antenna measurements; Calibration; Delay effects; Frequency measurement; Indoor radio communication; Radio propagation; Receiving antennas; Time measurement; Transfer functions; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.530761
