Title :
Modeling of propagation delay profile in urban areas surrounded by mountains
Author :
Tanaka, Tetsu ; Akeyama, Akira
Author_Institution :
NTT Radio Commun. Syst. Lab., Kanagawa, Japan
Abstract :
Examines the transmission characteristics of mobile radio systems. A propagation model that can be used to predict delay spread for cities bordered by tall mountains is proposed. This model takes into account the main arrival wave from the base station and the reflected waves from the mountains. To quantify the multipath propagation characteristics, excess delay and received level measurements were carried out in Kofu, which is located 100 km west of the Tokyo metropolitan area. The measured values almost agree with the calculated ones when the reflection loss, is about 10 dB.<>
Keywords :
delays; mobile radio systems; radiowave propagation; Kofu; arrival wave; base station; cities; delay measurement; delay spread; mobile radio systems; mountains; multipath propagation characteristics; propagation delay profile; propagation model; radiowave propagation; received level measurements; reflected waves; reflection loss; transmission characteristics; urban areas; Base stations; Cities and towns; Loss measurement; Predictive models; Propagation delay; Propagation losses; Reflection; Sea level; Sea measurements; Urban areas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115481
