WebHybrid beamforming (also known as hybrid precoding) is a method that enables the use of massive MIMO antenna arrays in a lower power and cost-efficient manner [ 1 ]. In a traditional antenna array, each antenna requires a dedicated RF chain to transmit and receive each data stream; with hybrid precoding, each stream requires a dedicated RF ... Web19 Mar 2024 · This paper investigates the joint data and pilot power optimization for maximum sum spectral efficiency (SE) in multi-cell Massive MIMO systems, which is a non-convex problem. We first propose a new optimization algorithm, inspired by the weighted minimum mean square error (MMSE) approach, to obtain a stationary point in polynomial …
Shannon–Hartley theorem - Wikipedia
Web22 Dec 2024 · Abstract: We examine the sum spectral efficiency (SE) performance of a cell-free massive multiple-input multiple-output (CF-mMIMO) system, where each access … Web30 Mar 2024 · Results reveal that massive MIMO is capable of compensating the loss caused by Rician fading, the sum spectral efficiency increases with the increase of the Rician factor, and deploying large-scale antenna is effective to save cost and keep performance. PDF View 1 excerpt, cites background References SHOWING 1-10 OF 15 … lajota piscina
Stefano Buzzi - Associate Editor - IEEE Transactions on ... - LinkedIn
WebOne solution to increase spectral efficiency given a limited bandwidth is to use high order constellations in high signal to noise ratio (SNR) regimes [4, 5]. Thus, the investigation of new techniques high QAM constellations for low cost sensor and high video data rate is the main motivation for the investigation proposed in this paper. Web29 Oct 2014 · However, spectral efficiency must not be mixed up with encoding efficiency, which happens further upstream just before the modulation process and relates to how … WebCurve 9 (X) represents the stan- dard spectral luminosity distribution for the human eye, curve f (X) the relative spectral response of a filtered selenium photo cell, curve F (X) the measured relative emission of a tungsten-filament calibration lamp, and F 1 (X) the spectral energy distribution of the direct solar radiation corresponding to an air mass (m) value of … la jota radio