Results 51 to 60 of about 539,850 (216)

Massive MU-MIMO-OFDM Downlink with One-Bit DACs and Linear Precoding

, 2017
Massive multiuser (MU) multiple-input multiple- output (MIMO) is foreseen to be a key technology in future wireless communication systems. In this paper, we analyze the downlink performance of an orthogonal frequency division multiplexing (OFDM)-based ...
Sven Jacobsson, Giuseppe Durisi, Christoph Studer, Durisi, Giuseppe,, Studer, Christoph, Studer, Christoph,, Coldrey, Mikael, Jacobsson, Sven, Durisi, Giuseppe, Mikael Coldrey, Coldrey, Mikael,, Jacobsson, Sven,   +11 more
core   +1 more source

Proportional Fair MU-MIMO in 802.11 WLANs [PDF]

, 2014
We consider the proportional fair rate allocation in an 802.11 WLAN that supports multi-user MIMO (MU-MIMO) transmission by one or more stations. We characterise, for the first time, the proportional fair allocation of MU-MIMO spatial streams and ...
Valls, V., Leith, Douglas J.
core   +1 more source

Frequency Shaping for Improving a Trade‐Off Between Control and Privacy Performance: Beyond Differential Privacy

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT In privacy protection of control systems, a trade‐off between control performance and privacy level is often pointed out. Our goal in this paper is to improve this trade‐off by shaping the frequency of noise added for privacy protection when the control objective is to track a reference signal, which is taken as a piece of information whose ...
Rintaro Watanabe, Yu Kawano, Nobutaka Wada, Ming Cao   +3 more
wiley   +1 more source

Two-tier channel estimation aided near-capacity MIMO transceivers relying on norm-based joint transmit and receive antenna selection [PDF]

, 2015
We propose a norm-based joint transmit and receive antenna selection (NBJTRAS) aided near-capacity multiple-input multiple-output (MIMO) system relying on the assistance of a novel two-tier channel estimation scheme. Specifically, a rough estimate of the
Chen, Sheng, Zhang, Peizhang, Hanzo, Lajos   +2 more
core   +1 more source

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Block diagonalisation-based multiuser multiple input multiple output-aided downlink relaying [PDF]

, 2012
A novel block diagonalisation (BD)-based Multiuser multiple input multiple output (MU-MIMO)-aided relaying scheme is proposed for downlink transmissions, which does not require any channel state information at the base station (BS) and decomposes a MU ...
Li, C., Li, J.-D., Liu, Wei, Hanzo, Lajos   +3 more
core   +1 more source

Auxiliary Variable-Aided Hybrid Message Passing for Joint Channel, Phase Noise Estimation and Detection for Multi-User MIMO Systems

IEEE Open Journal of the Communications Society, 2023
This paper considers a multi-user multiple-input multiple-output (MU-MIMO) system with independent phase noise (PN) at user terminals (UTs) due to non-synchronous noisy local oscillators.
Xiaochen He, Wei Wang, Qinghua Guo, Jun Tong, Jiangtao Xi, Yanguang Yu   +5 more
doaj   +1 more source

Matched Filtering in Massive MU-MIMO Systems [PDF]

, 2021
<p>This thesis considers the analysis of matched filtering (MF) processing in massive multi-user multiple-input-multiple-output (MU-MIMO) wireless communication systems. The main focus is the analysis of system performance for combinations of two linear processers, analog maximum ratio combining (MRC) and digital MRC.
openaire   +2 more sources

1-bit Massive MU-MIMO Precoding in VLSI

, 2017
Massive multi-user (MU) multiple-input multiple-output (MIMO) will be a core technology in fifth-generation (5G) wireless systems as it offers significant improvements in spectral efficiency compared to existing multi-antenna technologies.
Goldstein, T., Studer, C., Giuseppe Durisi, Goldstein, Tom, Goldstein, T.,, Durisi, Giuseppe,, Studer, Christoph; id_orcid, Coldrey, Mikael, Castaneda, Oscar,, Durisi, Giuseppe, Castaneda, Oscar, Jacobsson, Sven,, Coldrey, M., Sven Jacobsson, Christoph Studer, Studer, Christoph, Studer, Christoph,, Oscar Castaneda, Castaneda, O., Tom Goldstein, Jacobsson, Sven, Mikael Coldrey, Castañeda Fernández, Oscar; id_orcid, Coldrey, Mikael,   +23 more
core   +1 more source

Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects

Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.
A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand, Erwan Weckenmann, Jean‐Michel Vallée, Farshid Shateri, Zibo Zheng, Simon Levasseur, Bo Yang, Jiajian Chen, Ting Wang, Zihao Wang, Leslie A. Rusch, Wei Shi   +11 more
wiley   +1 more source