Title :
Tilted-beam, beam-width- and space-diversity improvements on various paths
Author :
Satoh, Akio ; Sasaki, Osamu
Author_Institution :
NTT Radio Commun. Syst. Lab., Kanagawa, Japan
Abstract :
Results of diversity improvements on various paths are presented. Propagation tests were conducted on paths over land and water. Several antenna beam configurations were used to clarify improvements in received power obtained by using tilted-beam-, beam-width-, and space-diversity reception. In order to evaluate the diversity improvement, a three-ray model is derived. The results show that diversity improvement is clearly dependent on the path conditions. Thus, path conditions should be considered in order to achieve the best diversity improvement
Keywords :
diversity reception; radio reception; radiocommunication; radiowave propagation; tropospheric electromagnetic wave propagation; antenna beam configurations; beam-width reception; over land path; over water path; path conditions; propagation tests; received power; space-diversity improvements; three-ray model; tilted-beam reception; Antenna measurements; Antennas and propagation; Ducts; Extraterrestrial measurements; Fading; Laboratories; Optical reflection; Radio communication; Receiving antennas; Testing;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.63938
