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.
We discuss the problem of estimating, at the mobile receiver, the weights applied by the base station transmitter when closed loop transmit diversity is used.
The Air Interface (AI) represents the complete Radio Access Network (RAN) protocol stack (i.e.
In this paper we present the development of a photonic integrated circuit on InP with an array of antenna-integrated uni-travelling carrier photodiodes to increase the output power levels.
A discussion of u.h.f. oscillations on spheres and ellipsoids, and a comparison of the mathematical theories of various authors.
