Results 31 to 40 of about 15,345 (175)
Beamforming in mmWave MIMO Systems [PDF]
, 2021 Future wireless communication systems are expected to have much higher mobility and data rate. To achieve these goals, millimeter-wave (mmWave) communication has been considered as a key technology for the future wireless communication systems, because ...
JIANG, LISI
core +1 more source
Traffic adaptive formation of mmWave meshed backhaul networks
, 2022 S.185-191MmWave meshed network is a promising architecture for cost-efficient wireless backhaul of millimeter-wave overlay heterogeneous network (mmWave overlay HetNet).
Ogawa, H. +3 more
core +2 more sources
Energy-Proportional Single-Carrier Frequency Domain Equalization for mmWave Wireless Communication [PDF]
, 2015 mmWave wireless communication is proposed for high-throughput and high-density applications. Due to the large channel bandwidth, mmWave systems face a large variation in the observed delay spread.
Andreas Burg +5 more
core +2 more sources
Resource Efficient Allocation and RRH Placement for Backhaul of Moving Small Cells
IEEE Access, 2019 Mobile users suffer from deteriorating signal quality due to vehicle penetration losses. To solve this, small cells are deployed within the vehicles to improve the Quality of Service (QoS). These small cells called moving small cell access points (MSAPs),
Zaeema Iftikhar +3 more
doaj +1 more source
MIMO Array Gain Techniques for Communications over mmWave Channels [PDF]
, 2022 The small wavelength in mmWave systems enables beamforming using large antenna arrays to combat SNR degradation. In this work, after the analysis of a suitable MIMO mmWave channel, we present and compare multi-antenna single user solutions.
Belli, Nicola
core
Journal of Communications Software and Systems, 2022 In this paper, we study the problem of beam tracking of a multipath channel in millimeter-wave massive MIMO communication system using adaptive filters. We focus on the performance of least-mean-square filter (LMS) and recursive least-squares filter (RLS)
Mohanad Al-Ibadi, Farhad E. Mahmood
doaj +1 more source
Hybrid antenna array for mmWave massive MIMO
, 2017 © 2017 Elsevier Inc. All rights reserved. This chapter introduces the massive hybrid array architecture, where antenna elements are grouped into multiple analog subarrays, and a single digital signal is received from or sent to each subarray. It provides
Dyadyuk, V +7 more
core +1 more source
Impact of reflections in enclosed mmWave wearable networks
, 2015 We study the impact of signal reflections in enclosed/nwireless networks of wearable devices operating at mmWave/nfrequencies. Given the radical blockage by obstacles and people/n(including the user’s own body) at these frequencies, surface/nreflections ...
Lozano Solsona, Angel +3 more
core +1 more source
An Eight-Element Slotted SIW Array Engineered to Generate Four Orbital Angular Momentum (OAM) Modes
IEEE AccessThis paper presents a circular substrate-integrated waveguide (SIW) cavity array divided equally into eight wedges for generating orbital angular momentum (OAM) modes $\ell =\pm 1$ and $\ell =\pm 2$ at an operating frequency of 5.8 GHz.
P. Rahul Lal +3 more
doaj +1 more source
Chiral Quasi‐BICs Stemming From a Γ‐point Degeneracy
Laser &Photonics Reviews, EarlyView.Band degeneracies universally exist in 2D periodic systems. However, the studies on the intrinsic properties of those isolated points remain limited. By exploring 3D chiral perturbations, chiral quasi‐BICs are achieved through a Γ‐point degeneracy in resonant metasurfaces with C4 symmetry.
Bohan Zhang +8 more
wiley +1 more source