MIMO Detection with Spatial Sigma-Delta ADCs: A Variational Bayesian Approach

no code implementations • 4 Oct 2024 • Toan-Van Nguyen, Sajjad Nassirpour, Italo Atzeni, Antti Tolli, A. Lee Swindlehurst, Duy H. N. Nguyen

The effects of the steering angle of the $\Sigma\Delta$ architecture, the number of ADC resolution bits, and the number of antennas and users are also extensively analyzed.

Quantization

GreenMO: Virtualized User-proportionate MIMO

no code implementations • 29 Nov 2022 • Agrim Gupta, Sajjad Nassirpour, Manideep Dunna, Eamon Patamasing, Alireza Vahid, Dinesh Bharadia

The reason is that traditionally MIMO requires a separate RF chain per antenna, so the power consumption scales with number of antennas, instead of number of users, hence becomes energy inefficient.