Multipath fading is of particular concern in digital radio systems because of the effects of a dispersive channel on the digital signal.
Multipath fading is of particular concern in digital radio systems because of the effects of a dispersive channel on the digital signal.
We propose a partially adaptive beamformer setup where a reduced number of transceivers with digital beamformers (DBF) are connected to an increased number of antennas through a RF antenna feeder n
A detailed description of the aerial used in the Tacan navigation system operating in the 1000 Mc/s frequency band for ship-or shore-based installation.
Future cellular and fixed wireless loops (FWL) systems employing highly directive base stations antennas (5 to 8 degrees beamwidth) and moderately directive subscribers' antennas (15 to 25 degrees
This paper is a description of the antenna pointing system used in the satellite ground station at Andover, Maine.
The article consists of a Powerpoint presentation on antenna region.
BLAST (Bell-labs LAyered Space-Time) is a communication technique for achieving very high spectral efficiencies in highly scattering environments using multiple transmit and receive antennas.
It has been shown previously that diversity reception techniques at the mobile unit often help to reduce the fading rate of a mobile radio signal.
In this paper we discuss the problem of estimating, at the mobile receiver, the weights applied by the Node-B transmitter when closed loop transmit diversity is used.
