Results 21 to 30 of about 351,703 (284)
Capacity evaluation of LoS-optimised and standard MIMO antenna arrays at 5.2 GHz [PDF]
, 2007 In this paper, the channel capacity of MIMO communication systems is evaluated from measurements in a home environment at 5.2 GHz. The capacity performance of a novel line-of-sight (LoS)-optimised antenna array architecture is investigated and compared ...
Nix, AR, Sarris, I
core +2 more sources
IEEE Access, 2019 Device-to-device (D2D) communications have been proposed as a promising technology to improve network capacity and user experiences in the future mobile networks such as heterogeneous networks with densely deployed small cells, but it has not yet been ...
Junnan Yang +4 more
doaj +1 more source
Codebook Design of Dense Small Cell Based on Short-term Channel Information Feedback [PDF]
Jisuanji gongcheng, 2019 The traditional codebook scheme uses Rayleigh fading channel as the model to design codebook,which will lose the gain of Line of Sight(LOS) component in dense small cell channel,and the traditional optimal codeword feedback overhead is large.To solve ...
SHI Zhenyu,LI Linsen
doaj +1 more source
Finding Large Independent Sets in Line of Sight Networks [PDF]
, 2017 Line of Sight (LoS) networks provide a model of wireless communication which incorporates visibility constraints. Vertices of such networks can be embedded in finite d-dimensional grids of size n, and two vertices are adjacent if they share a line of ...
Sangha, P, Zito, M
core +1 more source
Indoor wireless channel modeling from 2.4 to 24 GHz using a combined E/H-Plane 2D ray tracing method [PDF]
, 2004 Future wireless systems are moving to high frequencies for additional bandwidth and frequency reuse. This makes it very important to have accurate and time-efficient models for system planning.
Lu, Dai, Rutledge, David
core +1 more source
A Tractable Line-of-Sight Product Channel Model: Application to Wireless Powered Communications [PDF]
, 2018 We here present a general and tractable fading model for line-of-sight (LOS) scenarios, which is based on the product of two independent and non-identically distributed κ- μ shadowed random variables.
Fernández-Plazaola, Unai +5 more
core +1 more source
IEEE AccessNon-Line-of-Sight (NLOS) reception is acknowledged as a primary source of positioning error in Global Navigation Satellite System (GNSS) applications, particularly within dense urban settings. When the direct satellite path is obstructed by buildings and
S. Titouni +8 more
doaj +1 more source
Air-to-Ground Large-Scale Channel Characterization by Ray Tracing
IEEE Access, 2022 Through ray tracing simulation on three-dimensional (3D) urban environments, we characterize air-to-ground (A2G) channels for 5G and beyond wireless communications.
Mengan Song +4 more
doaj +1 more source
Statistical Characterization and Mitigation of NLOS Errors in UWB Localization Systems [PDF]
, 2011 In this paper some new experimental results about the statistical characterization of the non-line-of-sight (NLOS) bias affecting time-of-arrival (TOA) estimation in ultrawideband (UWB) wireless localization systems are illustrated.
Montorsi, Francesco +2 more
core +1 more source
LoRaWAN Based Indoor Localization Using Random Neural Networks
Information, 2022 Global Positioning Systems (GPS) are frequently used as a potential solution for localization applications. However, GPS does not work indoors due to a lack of direct Line-of-Sight (LOS) satellite signals received from the End Device (ED) due to thick ...
Winfred Ingabire +3 more
doaj +1 more source