A reduced complexity MIMO broadcast scheme: Away between opportunistic and dirty paper implementation
作者： Miguel A. Lagunas , Ana I. Perez-Neira , Nizar Zorba
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摘要: Departing from the opportunistic schemes in Multiuser Broadcast MIMO schedulers, practical transmission techniques to get closer channel capacity are proposed for outdoor urban scenario. By considering Spatial Power Density function of arriving signal, paper develops different setups based on quantity available Channel State Information at Transmitter side (CSIT). In a first approach, Signal Noise Interference Ratio (SNIR) feedback scenario is considered, but further decrease gap between and scheme, system can ask full CSIT progressively scheduled users order improve user selection, while same time, an interference cancellation previously accomplished. The compared via simulations with other possible strategies terms sum rate.
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