Multipath propagation model for line-of-sight street microcells in urban area

• Published in: IEEE transactions on vehicular technology Vol. 49; no. 2; pp. 422 - 427
• Main Authors: Ichitsubo, S., Furuno, T., Taga, T., Kawasaki, R.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-03-2000; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acoustic propagation; Applied sciences; Buildings; Channels; Communication channels; Communication systems; Correlators; Delay; Digital systems; Equations; Equipments and installations; Exact sciences and technology; Frequency; Mathematical models; Microcell networks; Mobile radiocommunication systems; Propagation; Propagation delay; Propagation through the atmosphere; Radiocommunications; Radiowave propagation; Spreads; Streets; Studies; Telecommunications; Telecommunications and information theory; Urban areas; Wireless communication; Mobile radiocommunication; Wireless telecommunication; Prediction; Multipath propagation; Street; Cell network; Urban area; Modeling; Delay
• ISSN: 0018-9545; 1939-9359
• DOI: 10.1109/25.832973

This paper proposes a multipath propagation model for line-of-sight (LOS) street microcells with building roof base sites (BS) in urban areas, Multipath propagation characteristics are of great importance in evaluating the performance of digital systems and designing wireless links. Typical delay profiles are measured to clarify their statistical characteristics in LOS street microcells. The channel sounder used is a sliding correlator with 30-Mb/s PN code and a center frequency of 2.6 GHz. The measurements clarify the features of delay profile and mean RMS delay spread. The proposed delay profile model explains one plausible mechanism of multipath propagation. The delay profiles calculated using the model agreed well with the measured profiles. Furthermore, the factors influencing the RMSs delay spread are investigated, and the regression equation of medium RMS delay spread on a sidewalk is established. The proposed model can evaluate the transmission characteristics of wireless digital communication systems in multipath propagation environments.