Results 31 to 40 of about 352,534 (288)
Channel Characteristics of Dynamic Off-Body Communications at 60 GHz Under Line-of-Sight (LOS) and Non-LOS Conditions [PDF]
IEEE Antennas and Wireless Propagation Letters, 2017 This letter investigates the first-order characteristics of dynamic off-body communications channels at 60 GHz. In particular, we have studied signal propagation from a chest-worn millimeter-wave transmitter as an adult male walked toward and then away from a hypothetical base station.
Yoo, Seong Ki +4 more
openaire +3 more sources
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
Measured pedestrian movement and bodyworn terminal effects for the indoor channel at 5.2 GHz [PDF]
, 2003 [Summary]: Human body effects such as antenna-body interaction and scattering caused by pedestrian movement are important indoor radio propagation phenomena at microwave frequencies.
Evans, Noel +2 more
core +1 more source
Set-based Line-of-Sight (LOS) path following with collision avoidance for underactuated unmanned surface vessel [PDF]
2016 24th Mediterranean Conference on Control and Automation (MED), 2016 A cornerstone ability of an autonomous unmanned surface vessel (USV) is to avoid collisions with stationary obstacles and other moving vehicles while following a predefined path. USVs are typically underactuated, and this paper extends recent results in set-based guidance theory to an underactuated surface vessel, resulting in a switched guidance ...
Moe, Signe, Pettersen, Kristin Ytterstad
openaire +2 more sources
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
Cooperative localization in 5G networks: A survey
ICT Express, 2017 In upcoming 5G networks, key prospects such as increased bandwidth, smaller cells, higher mobile terminal (MT) densities, multiple radio access technologies, and the capability of device-to-device communication are beneficial for localization. Meanwhile,
Ping Zhang, Jian Lu, Yan Wang, Qiao Wang
doaj +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
Uplink Performance Analysis in D2D-Enabled mmWave Cellular Networks
, 2017 In this paper, we provide an analytical framework to analyze the uplink performance of device-to-device (D2D)-enabled millimeter wave (mmWave) cellular networks.
Gursoy, M. Cenk, Turgut, Esma
core +2 more sources
Average Error Probability Analysis in mmWave Cellular Networks
, 2015 In this paper, a mathematical framework for the analysis of average symbol error probability (ASEP) in millimeter wave (mmWave) cellular networks with Poisson Point Process (PPP) distributed base stations (BSs) is developed using tools from stochastic ...
Gursoy, M. Cenk, Turgut, Esma
core +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