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NLOS condition

Robust distributed cooperative RSS based localization for directed graphs in mixed LoS/NLoS environments

Robust distributed cooperative RSS based localization for directed graphs in mixed LoS/NLoS environments

... of coping with mixed LoS/NLoS conditions. Simulation results, carried out in comparison with a centralized ML algorithm that serves as a benchmark, show that the pro- posed approach has good overall performance. ...

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Moving target localization in indoor wireless sensor networks mixed with LOS/NLOS situations

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 ...changing condition between LOS and NLOS due to the two KFs' interaction so that ...

10

Identification & Mitigation of NLOS Information for UWB based Indoor Localization

Identification & Mitigation of NLOS Information for UWB based Indoor Localization

... thesis, NLOS conditions are identified classified and a target’s NLOS position is successfully mitigated when only two LOS anchors are available by utilizing the physical geometry of the anchor ...

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IMU-Aided Dual-Frequency RFID Based Localization in LOS/NLOS Hybrid Environment

IMU-Aided Dual-Frequency RFID Based Localization in LOS/NLOS Hybrid Environment

... to NLOS. Li [25] improved the NLOS mitigation algorithm to reduce the computation complexity and speed the convergence by using only three distance measurements instead of all available distance ...

14

A Practical Target Tracking Technique in Sensor Network Using Clustering Algorithm

A Practical Target Tracking Technique in Sensor Network Using Clustering Algorithm

... The general approach to processing the LOS/NLOS signals in cellular communication network is to deter- mine whether it’s a LOS or NLOS condition. Even the fuzzy inference scheme is introduced to tell ...

9

NLOS mitigation in indoor localization by marginalized Monte Carlo Gaussian smoothing

NLOS mitigation in indoor localization by marginalized Monte Carlo Gaussian smoothing

... The skew t distribution has been recently shown to provide a reasonable fit to realistic indoor TOA mea- surements. For instance, characterizing range measures in NLOS conditions in ultra-wideband (UWB) local- ...

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Localization and dynamic link detection for geographic routing in non line of sight (NLOS) environments

Localization and dynamic link detection for geographic routing in non line of sight (NLOS) environments

... (NLOS) condition, and the ranging distance with TW-TOA may have the large measurement error in the NLOS ...the NLOS condition, the mobile device has a large scale location error and a ...

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Performance of Priority-based Scheduler in LTE- Advanced for Propagation Models

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 ...

9

Identification and Mitigation of NLOS based on Channel Information Rules for Indoor UWB Localization

Identification and Mitigation of NLOS based on Channel Information Rules for Indoor UWB Localization

... and NLOS conditions by detecting and weighting them using the Normalized Innovation Squared (NIS) test and processing the available accurate measurements at the root joint (waist) ...

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IJEDR1903036 International Journal of Engineering Development and Research ( www.ijedr.org207

IJEDR1903036 International Journal of Engineering Development and Research ( www.ijedr.org207

... 6) Spatial Consistency: spatial consistency means two almost spotted transmitters or receivers ought necessity similar channel parts. Channel states including vast scale Parameters (LSPs), minimal scale Parameters ...

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TOA localization for multipath and NLOS environment with virtual stations

TOA localization for multipath and NLOS environment with virtual stations

... in NLOS condition as the distance parameters of LS algo- ...the NLOS problem has been converted into LOS problem, and the LS algorithm can be applied in NLOS conditions via the cooperation of ...

7

Caching or No Caching in Dense HetNets

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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A SURVEY OF SOFT HANDOFF PRIORITIZATION SCHEMES IN CDMA CELLULAR NETWORKS

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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Test method for narrowband F/TDMA-based wireless sensor/actuator networks including radio channel emulation in severe multipath environments

Test method for narrowband F/TDMA-based wireless sensor/actuator networks including radio channel emulation in severe multipath environments

... bility than in a NLOS or Rayleigh scenario. Measurements have shown that Nakagami’s parameter m is significantly larger than unity in many scenarios (e.g., m ≈ 2.5 in Agrawal et al., 2014 or m ≈ 35.7 in Eluma and ...

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MIMO performance of a planar logarithmically periodic antenna with respect to measured channel matrices

MIMO performance of a planar logarithmically periodic antenna with respect to measured channel matrices

... The next step is to analyze the results for the NLOS case. According to section 2.3.2 polarization diversity will lead to small correlation of the antenna elements and therefore to a decoupling of the subchannels. ...

7

Statistical Indoor Location Estimation for the NLoS Environment Using Radial Extreme Value Weibull Distribution

Statistical Indoor Location Estimation for the NLoS Environment Using Radial Extreme Value Weibull Distribution

... In practical experiments, we have two types of data sets: data set where the subject with the receiver continuously stops within a minute on a fixed point (static case experi- ment), and data set where the subject with ...

6

Analysis of the Transmission Characteristics of Ultraviolet Communication in Non-Common-Scattering Volume

Analysis of the Transmission Characteristics of Ultraviolet Communication in Non-Common-Scattering Volume

... After simulating random scattering of a large number of photons, accumulate the probability of reaching the detector in different small time zones, after being converted into weight distribution, the impulse response ...

7

Coverage Performance in MIMO ZFBF Dense HetNets with Multiplexing and LOS/NLOS Path Loss Attenuation

Coverage Performance in MIMO ZFBF Dense HetNets with Multiplexing and LOS/NLOS Path Loss Attenuation

... in the presence of practical beamforming alignment error, LOS/NLOS and blockage model. The results were then ex- tended in [29] to investigate the potential of cellular systems for simultaneous information and ...

18

Development of Radio Wave Propagation Model in Indoor Non-Line-of-Sight (NLOS) Scenario

Development of Radio Wave Propagation Model in Indoor Non-Line-of-Sight (NLOS) Scenario

... The free space model is well known model for radio wave propagation between antennas especially in Line-of- Sight (LOS) environment. But those model can be used not only LOS environment but also NLOS environment. ...

13

Fuzzy modeling, maximum likelihood estimation, and Kalman filtering for target tracking in NLOS scenarios

Fuzzy modeling, maximum likelihood estimation, and Kalman filtering for target tracking in NLOS scenarios

... The block diagram of the proposed three-step approach is illustrated in Figure 1, which contains three main steps: (1) fuzzy modeling of each measurement data, (2) MLE-based single-shot position determination, and (3) ...

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