Title :
Mixed urban/suburban propagation measurements for PCS in the OFS band
Author :
Lansford, Jim ; Scott, Logan
Author_Institution :
Colorado Univ., Colorado Springs, CO, USA
Abstract :
The key to acceptance of PCS in the OFS band (1850-1990 MHz) is compatibility with existing point to point microwave users, particularly utility companies employing FDM/FM transmissions for multichannel voice. The paper examines the Hata and related propagation models and gives results of a series of experiments to determine the accuracy of the models for time division multiplexed direct sequence spread spectrum signals in the OFS band in order to asses the potential for interference to OFS users. Propagation constants derived both from straight line and piecewise linear regression are used to compare results to Hata and free space models
Keywords :
UHF radio propagation; land mobile radio; microwave propagation; personal communication networks; radiofrequency interference; spread spectrum communication; time division multiplexing; 1850 to 1990 MHz; Hata propagation model; OFS band; PCS; free space models; interference; piecewise linear regression; point to point microwave users; propagation constant; propagation model; straight line linear regression; suburban propagation measurement; time division multiplexed direct sequence spread spectrum signals; urban propagation measurements; Degradation; FCC; Frequency division multiplexing; Interference; Personal communication networks; Propagation constant; Propagation losses; Spread spectrum communication; Springs; Time division multiplexing;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345228
