Institute for Telecommunication Sciences - 1999 Technical Progress Report Adaptive Antenna Testbed Outputs Wideband radio channel sounding measurements. Propagation loss, fading, delay, and Doppler statistics over a broad bandwidth.
Antenna array diversity gain data.
Angle of arrival input data for adaptive antenna schemes. A four element antenna array. Multiple-access schemes based on frequency division, time division, and orthogonal codes are presently used to increase channel capacity and optimize channel efficiency. Antenna arrays can produce multiple beams as opposed to a simple omni-directional antenna. Adaptive antennas can also track mobile users, improving both signal range and quality.