Bounds on the throughput performance of PU2RC

We consider the multiple-input multiple-output broadcast channels and the per user unitary and rate control (PU²RC) transmission and we characterize the performance of this transmission scheme for arbitrary number of active users in the network. In this paper we first introduce the method of computing the probability distribution of the feedback SINR in the PU²RC and will show that unlike the common assumption, the maximum of SINR in the different orthogonal sets are not independent of each other. In the next step we introduce a method to evaluate an upper and lower bound over the achievable rates in the PU²RC transmission scheme that can characterize its throughput performance and the results can be used in the optimal feedback designs and Multimode switching.