Title :
Multiplexing index and MIMO band index: Two novel metrics for MIMO antenna evaluation
Author :
Tsakalaki, E. ; Alrabadi, O. ; de Carvalho, Elisabeth ; Pedersen, Gert F.
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark
Abstract :
The paper presents two new figures of merit that efficiently evaluate the performance of a MIMO terminal, namely the spatial multiplexing index (SMI) and the MIMO band index (MBI). Both metrics incorporate the impact of the antenna efficiency, efficiency imbalance and the spatial correlation of the antenna terminal into its spatial multiplexing performance. The SMI is introduced as a “green” index that expresses the minimum SNR required by the MIMO terminal in order to support spatial multiplexing. The MBI metric completes the picture regarding the MIMO antenna characterization by taking into account the wideband performance of the antenna-under-test and thus is particularly useful for antenna engineers whose goal is to achieve the optimum MIMO antenna system design over a desired frequency band.
Keywords :
MIMO communication; antenna arrays; antenna testing; broadband antennas; space division multiplexing; MBI; MIMO antenna characterization; MIMO antenna evaluation; MIMO band index; MIMO terminal; SMI; SNR; antenna efficiency; antenna terminal; antenna-under-test; figure of merit; green index; optimum MIMO antenna system design; spatial multiplexing performance; wideband antenna performance; Antenna measurements; Antennas; MIMO; MIMO OTA; Multiple-input-multiple-output (MIMO) antennas; figures of merit; spatial multiplexing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
