Title :
Simultaneous error performance of antenna pattern diversity and vertical space diversity on a 64 QAM-radio link
Author :
Vergeres, D. ; Jordi, P. ; Loembe, A.
Author_Institution :
Swiss PTT, Bern, Switzerland
Abstract :
The results of a comparison of the simultaneous performances of antenna pattern diversity (APD) and vertical space diversity (VSD) on a 124-km-long microwave radio link are discussed. The experiment was conducted using a multimode feed system. In this radio hop, which is very dispersive and subject to strong lake reflections, antenna pattern diversity performed extremely well and better than vertical space diversity. It is shown that over an 18-month period, APD has yielded better error performance than VSD, mainly due to the greater improvements brought by APD against dispersive effects
Keywords :
amplitude modulation; antenna radiation patterns; digital radio systems; diversity reception; error statistics; fading; microwave links; radiowave propagation; tropospheric electromagnetic wave propagation; 124 km; 140 Mbit/s; 6.4048 GHz; 64 QAM-radio link; antenna pattern diversity; digital radio hop; error performance; errored seconds; fading; lake reflections; microwave radio link; vertical space diversity; Feeds; Lakes; Microwave antennas; Poles and towers; Protection; Quadrature amplitude modulation; Radio link; Reflection; Reflector antennas; Research and development;
Conference_Titel :
Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-87942-632-2
DOI :
10.1109/GLOCOM.1990.116620
