Guaranteed Minimization of the Bit Error Ratio for Correlated MIMO Systems (Artikel)
|Guaranteed Minimization of the Bit Error Ratio for Correlated MIMO Systems (Artikel)|
|Autor||Ekaterina Auer, Andreas Ahrens|
|In:||Proceedings of REC 2021 Conference|
|Seitenzahl||457 - 470|
The multiple-input multiple-output (MIMO) mechanism is a method to increase the capacity of communication links by employing multiple transmitting and receiving antennas. An important quality criterion for such systems is the bit error probability characterizing the bit error ratio (BER). If simple MIMO transmission channel and data source models are assumed, BER can be computed analytically and optimized with respect to major parameters it depends on. In this contribution, we consider BER minimization for MIMO links with uncertainty in their parameters under good and poor scattering conditions, illustrated by close-to-life simulation examples. The obtained results show that the achievable performance depends strongly on the number of active MIMO layers, the assigned transmit power per layer and the bits per number of transmitted symbols.