NEC demonstrates advantages of distributed-MIMO in ultra-high-density user environments
TOKYO, July 10, 2023 - (JCN Newswire) - NEC Corporation (NEC; TSE: 6701) has conducted verification tests to evaluate the performance of massive-MIMO (mMIMO)(1) utilizing the 28GHz band.
- TOKYO, July 10, 2023 - (JCN Newswire) - NEC Corporation (NEC; TSE: 6701) has conducted verification tests to evaluate the performance of massive-MIMO (mMIMO)(1) utilizing the 28GHz band.
- During these tests, NEC verified mMIMO's ability to reliably provide large-capacity transmission in environments with extremely high user densities of 4 to 8 users per square meter, such as stadiums and crowded urban areas.
- Using a 28GHz-band prototype device(4), NEC quantitatively compared users' signal-to-noise ratio (SNR) in both distributed-MIMO and collocated-MIMO using a newly developed index for this demonstration.
- However, in comparison to collocated-MIMO configurations, NEC confirmed that distributed-MIMO could maintain SNR independent of user density depending on the sharpness and level of orthogonality of the beams.