Opportunistic Scheduling in Downlink Multiple-Antenna AF Interfered Networks

Abstract

In this paper, multiuser multiple-antenna (MUMIMO) relay networks employing opportunistic scheduling and operating in the presence of rayleigh fading and co-channel interference are analyzed Notwithstanding the system complexity, due to the newly found complementary moment generating function transform (CMGF) operator, an exact expression for the capacity under general conditions is obtained. Moreover, driven by the fact that communication devices have grown much faster than the infrastructure relay support, a specific wireless setup, which consists of a large number of users K and a relatively small antenna number is investigated. Simulation results indicate a rather fast convergence to the asymptotic limits with the system's size, thereby demonstrating the practical importance of the scaling results.