Results 71 to 80 of about 5,733 (189)
Every new network generation needs to make a leap in area data throughput, to manage the growing wireless data traffic. The Massive MIMO technologycan bring at least ten-fold improvements in area throughput by increasing the spec-tral efficiency (bit/s/Hz/cell), while using the same bandwidth and density of basestations as in current networks.
Van Chien, Trinh, Björnson, Emil
openaire +3 more sources
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley +1 more source
Performance Investigation of MIMO Retroreflective Optical ISAC System for Indoor IoT Scenarios
ObjectiveTo meet the practical demand for signal transmission and target sensing in indoor Internet of Things (IoT) scenarios, a Retroreflective Optical Integrated Sensing and Communication (RO-ISAC) system based on a Multiple-Input Multiple-Output (MIMO)
WANG Weiren +5 more
doaj
Every new network generation needs to make a leap in area data throughput, to manage the growing wireless data traffic. The Massive MIMO technology can bring at least ten-fold improvements in area throughput by increasing the spectral efficiency (bit/s/Hz/cell), while using the same bandwidth and density of base stations as in current networks.
openaire +2 more sources
3-D Geometrical Model for Multi-Polarized MIMO Systems
Multiple-input multiple-output (MIMO) systems capacity is highly influenced by the correlation between antennas, and the high correlation will result in a low capacity.
Xudong Cheng, Yejun He, Mohsen Guizani
doaj +1 more source
Weighted target detector via estimated SNR in a multipath environment
Multipath effect cause serious performance degradation in low-altitude target detection. To overcome the negative multipath effect in a low-altitude environment, a novel weighted detector based on the estimated signal-to-noise ratio (ESNR) is proposed ...
Hao Zhou +3 more
doaj +1 more source
Moving target detection with polarimetric distributed MIMO radar in heterogeneous clutter
In this study, the authors consider the problem of moving target detection in the presence of heterogeneous clutter. The knowledge-aided method has been extended to derive the polarimetric multiple-input multiple-output (MIMO) radar detector.
Yan Xiang +3 more
doaj +1 more source
MIMO Channel Capacity Improvement Using Space Time Coding
Wireless communication systems play an important role in our life and society. In this paper, the different types of wireless communication systems Single Input-Single Output (SISO), Single Input-Multiple Output (SIMO), Multiple Input-Single Output ...
Raad Hamdan Thaher +1 more
doaj
Design of a compact ultra-wideband MIMO antenna
A compact ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna is presented. The MIMO antenna consists of four monopoles which are printed on FR4 substrate, whose impedance bandwidth is from 2 to 12 GHz, and the isolation of two adjacent ...
Wang Youcheng +3 more
doaj +1 more source
Overview of Tensor-Based Cooperative MIMO Communication Systems-Part 1: Tensor Modeling. [PDF]
Favier G, Rocha DS.
europepmc +1 more source

