... of the MIMO BC (de-noted asCBC(HHH1; ;HHHK;P)) was shown to be achievable by dirty- paper coding [4]. From these results, the sum rate capacity can bewritten in terms of the following ... [10], a duality isshown to exist between the uplink and downlink which establishes thatthe dirty paper rate region for the MIMO BC is equal to the capacityregion of the dual MIMO MAC (described ... Wonjong Rhee, Member, IEEE,Sriram Vishwanath, Member, IEEE, Syed Ali Jafar, Member, IEEE,and Andrea Goldsmith, Fellow, IEEEAbstract—In this correspondence, we consider the problem of max-imizing...