Optimum Combining for Indoor Radio Systems with Multiple Users

This paper studies the use of optimum combining to increase the capacity of narrowband in-building radio communication systems with multiple users. We consider systems consisting of a base station with numerous remotes in a Rayleigh fading environment and study the problem of more users requiring channels than the number of channels available. A system is described that, with multiple antennas at the base station but only one antenna at each remote, uses optimum combining to suppress interfering signals.