'Institute of Electrical and Electronics Engineers (IEEE)'
Abstract
In this paper, we propose a new multiple-antenna transmission scheme that can simultaneously achieve both diversity
and multiplexing gain in the multi-user domain, by using multiple random beams. Multiple beams are generated so that
the users encounter multiple channels at the same time, enabling the use of multi-user diversity through each channel. Although
the signal-to-noise power ratio (SNR) of each channel is reduced in proportion to the number of beams, multiple beams are
generated so that the multiplexing gain is larger than the decrease of SNR, increasing the overall system capacity
