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2013
Conference Paper
Titel
Multi-user MIMO multi-cCell systems: Finite SNR rate loss analysis
Abstract
The rate loss gap due to imperfect channel state information at the transmitter in a multi-user MIMO multi-cell system is analyzed. Results from [1] are generalized for systems incorporating user selection and an arbitrary beamforming scheme. It is found that, if the transmitter is allowed to perform a user selection and uses an arbitrary beamforming scheme, the same scaling of the rate loss gap can be achieved if the feedback bits are doubled.