Thiele, L.L.ThieleKurras, M.M.KurrasBörner, K.K.BörnerHaustein, T.T.Haustein2022-03-122022-03-122012https://publica.fraunhofer.de/handle/publica/37875310.1109/ACSSC.2012.6489199The need for cell densification leads to inter-cell interference mitigation techniques known as coordinated multi-point (CoMP) transmission and reception. This work focuses on the Long Term Evolution - Advanced (LTE-A) frequency division duplex (FDD) downlink. In order to group active users for clustered zero-forcing (ZF) beamforming, we will introduce a greedy user scheduling method using a projection-based rate approximation metric. The clusters are defined in a network-centric fashion, where users are allowed to provide channel feedback for the whole cluster or a sub-set only.en621conference paper