Land mobile communications in K_u‐band. Results of a test campaign on eutelsat I‐F1

Abstract

This paper presents and discusses the results of technical tests on land mobile communications conducted in June and July 1989 in Europe using a EUTELSAT satellite. The land mobile communication system under test was that already operated by QUALCOMM in the U.S.A. under the registered name OmniTRACS.The field trial was organized in conjunction with the Signatories who expressed to EUTELSAT an interest in a full-scale technical investigation of the system. The aim of the field trial was to evaluate the technical characteristics of the system and test its performance in different operating conditions.The results establish the relationship between transmission performance (i.e. essentially the required number of transmission attempts in order to get a message through the communication channel), and the environment of the land mobile, the satellite transponder's mode of operations and the interference conditions.

Land mobile communications in Ku‐band. Results of a test campaign on eutelsat I‐F1

“…An overall assessment of the data has led to the following classification of environment types: 1. Highway or open country, which covers the situation where the satellite is in clear view of the vehicle at nearly all times.…”

Experimental Characterization and Correlation Analysis of Indoor Channels at 15 GHz

“…The 15 GHz band is a portion in the microwave range of the 12-18 GHz electromagnetic spectrum, which is the socalled "Ku" band. Ku-band is primarily used for satellite communications, and there are also some mobile applications in this band; for example, see [7,8]. The first-and second-order narrowband channel statistics, say the Doppler spread, delay spread, time share of connections, and time share of fades for the land mobile satellite channel in different outdoor environments at Ku-band, are presented in [9].…”