NLOS propagation
Empirical Investigation of Indoor/NLOS Propagation at Millimeter Wave Bands For Gigabits Throughput Realization: 24 And 60ghz Links
... wave propagation are challenges to achieve this ...indoor propagation performances of 24 and 60GHz frequency ...in NLOS propagation than 60GHz hence, WLAN with gigabits throughputs can be ...
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The Effect of Physical Changes in a Furnished Indoor Environment on Wireless Local Area Network (wlan) Signals
... the Wireless Local Area Network (WLAN) signals due to fixed and non-fixed variables in indoor environment. The measurement system consisted of a spectrum analyzer and a log- periodic antenna. Line-of-sight (LOS) and ...
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Moving target localization in indoor wireless sensor networks mixed with LOS/NLOS situations
... environment. NLOS propagation always leads to larger ranging error than LOS ...and NLOS conditions are quite ...and NLOS due to the two KFs' interaction so that large NLOS ranging ...
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A Practical Target Tracking Technique in Sensor Network Using Clustering Algorithm
... above propagation measure- ment scenarios are divided into two categories, line-of- sight (LOS) and non-line-of-sight ...multi-path propagation environments, particularly indoors or urban areas, the LOS ...
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Fuzzy modeling, maximum likelihood estimation, and Kalman filtering for target tracking in NLOS scenarios
... [2]. NLOS propagation also makes it difficult to model accurately the received signal ...Thus, NLOS propagation poses a great challenge for achieving accurate position ...mitigate NLOS ...
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A TOA-AOA-Based NLOS Error Mitigation Method for Location Estimation
... evaluate NLOS propagation level, can be estimated by the proposed ...different NLOS error models and with two scenarios of cell ...with NLOS error effectively, and it is attractive for location ...
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Improved NLOS Error Mitigation Based on LTS Algorithm
... signal propagation properties cannot be directly used in indoor environments ...(NLOS) propagation issues leading to inaccuracies in localisation ...
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ABSTRACT : The capability of PHY layer of WiFi has made it possible to utilize WiFi signals for both
... Severe NLOS propagation may degrade communication quality and deteriorate theoretical signal propagation ...of NLOS propagation the availability of LOS path must be ...and NLOS ...
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Performance of Priority-based Scheduler in LTE- Advanced for Propagation Models
... NLOS Propagation Model: When radio transmission across a path is obstructed usually by a physical object in the innermost Fresnel zone, the Phenomenon is known as Non-line- of-sight (NLOS) or ...
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CRLBs for WSNs localization in NLOS environment
... (NLOS) propagation is a main problem for accurate localization in actual WSNs ...for NLOS environment have been addressed in the litera- ture ...of NLOS errors. The CRLB in [21] was derived ...
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Analysis of the Transmission Characteristics of Ultraviolet Communication in Non-Common-Scattering Volume
... the NLOS (c) mode accounts for more than 80%, the proportion of other scattering times is relatively small, so in general, this mode can be used to analyze its scattering characteristics well using a single ...
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IMU-Aided Dual-Frequency RFID Based Localization in LOS/NLOS Hybrid Environment
... of NLOS (non-line-of-sight) propagation conditions is one of main challenges in wireless signals based indoor ...and NLOS hybrid environment, great attenuation of RSS will happen, which would result ...
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Identification and Mitigation of NLOS based on Channel Information Rules for Indoor UWB Localization
... an NLOS measurement, it must be determined if the measured distance contains NLOS ...when NLOS occurs.The primary method for identifying LOS/NLOS is based on comparing channel parameters ...
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Mobile Position Estimation based on Three Angles of Arrival using an Interpolative Neural Network
... in NLOS environments by utilizing the intersections of two circles and two lines and using the most resilient back- propagation (RPROP) neural network learning technique to estimate the location of the ...
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Statistical Indoor Location Estimation for the NLoS Environment Using Radial Extreme Value Weibull Distribution
... Abstract—In this study, we investigate the possibility of ana- lyzing indoor location estimation under the NLoS environment by radial extreme value distribution model. In this study, we assume that the observed ...
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Localization and dynamic link detection for geographic routing in non line of sight (NLOS) environments
... deployed in the corner and seven mobile devices are dis- tributed in the indoor places. For the network config- uration, a base station device, which is connected to a personal computer (PC), searches for any active ...
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A Robust Intrusion Detection System by Utilizing Support Vector Machine and Error Back Propagation Neural Network
... Abstract: The concept of Intrusion Detection System is used in the work. The data set is used for training and testing. Various numeric features of dataset are selected for better accuracy.SVM that is Support Vector ...
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Caching or No Caching in Dense HetNets
... In this paper we have studied the caching performance in dense HetNets. Our analysis incorporated the actual traits of dense cellular networks including the LOS/NLOS path-loss model, backhaul and caching costs, ...
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Light coherence properties in optical fibres and visual receptors
... Using this formulation and the resulting derivation of Y j 2 / Hopkins was able to obtain Zernike's result for the phase-coherence factor on a plane, illuminated by an extended, quasimonochromatic, incoherent source, ...
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A SURVEY OF SOFT HANDOFF PRIORITIZATION SCHEMES IN CDMA CELLULAR NETWORKS
... In the microcellular environment, handoff calls are classified into line of sight [LOS] handoff calls and non line of sight [NLOS] handoff calls [18], depending on the position of the m[r] ...
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