Single-scatter path loss model of LED-based non-line-of-sight ultraviolet communications: publisher’s note

2021 ◽  
Vol 46 (17) ◽  
pp. 4337
Author(s):  
Tian Cao ◽  
Xinyu Gao ◽  
Tianfeng Wu ◽  
Changyong Pan ◽  
Jian Song
Keyword(s):  
Path Loss ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Single Scatter ◽  
Non Line Of Sight

Single-scatter path loss model of LED-based non-line-of-sight ultraviolet communications

2021 ◽  
Author(s):  
Tian Cao ◽  
Xinyu Gao ◽  
Tianfeng Wu ◽  
Changyong Pan ◽  
Jian Song
Keyword(s):  
Path Loss ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Single Scatter ◽  
Non Line Of Sight

scholarly journals A single-scatter path loss model for non-line-of-sight ultraviolet channels

2012 ◽  
Vol 20 (9) ◽  
pp. 10359 ◽  
Author(s):  
Yong Zuo ◽  
Houfei Xiao ◽  
Jian Wu ◽  
Yan Li ◽  
Jintong Lin
Keyword(s):  
Path Loss ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Single Scatter ◽  
Non Line Of Sight

Non-line-of-sight ultraviolet single-scatter path loss model

2017 ◽  
Vol 35 (2) ◽  
pp. 251-257 ◽  
Author(s):  
Wenjun Hou ◽  
Chuanhui Liu ◽  
Faping Lu ◽  
Jiafang Kang ◽  
Zhongyang Mao ◽  
...  
Keyword(s):  
Path Loss ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Single Scatter ◽  
Non Line Of Sight

Closed-form path loss model of non-line-of-sight ultraviolet single-scatter propagation

2013 ◽  
Vol 38 (12) ◽  
pp. 2116 ◽  
Author(s):  
Yong Zuo ◽  
Houfei Xiao ◽  
Jian Wu ◽  
Wei Li ◽  
Jintong Lin
Keyword(s):  
Closed Form ◽  
Path Loss ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Single Scatter ◽  
Non Line Of Sight

scholarly journals Path Loss Model with Antenna Height Dependency under Indoor Stair Environment

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yu Yu ◽  
Yang Liu ◽  
Wen-Jun Lu ◽  
Hong-Bo Zhu
Keyword(s):  
Standard Deviation ◽  
Maximum Likelihood ◽  
Path Loss ◽  
Likelihood Estimation ◽  
Least Square ◽  
Line Of Sight ◽  
Loss Model ◽  
Path Loss Model ◽  
Proposed Model ◽  
Receiving Antenna

A novel, receiving antenna-height-dependent path loss model under indoor stair environment is presented. The effect of a cross-beam in the stairs is also considered. The proposed model can be applied to describe both of the line-of-sight (LOS) and the non-LOS (NLOS) cases. By using least square criterion, the parameters of proposed model are extracted. Finally, using the maximum likelihood estimation, the precision of the proposed model is evaluated by the standard deviation of shadowing.

scholarly journals Analysis of Object Location Accuracy for iBeacon Technology based on the RSSI Path Loss Model and Fingerprint Map

2016 ◽  
Vol 62 (4) ◽  
pp. 371-378 ◽  
Author(s):  
Damian E. Grzechca ◽  
Piotr Pelczar ◽  
Lukas Chruszczyk
Keyword(s):  
Moving Average ◽  
Path Loss ◽  
Propagation Model ◽  
Object Location ◽  
Line Of Sight ◽  
Average Error ◽  
Final Conclusion ◽  
Location Accuracy ◽  
Loss Model ◽  
Path Loss Model

Abstract This paper presents analysis of object location accuracy of a mobile device on the basis of the iBeacon technology. The research starts with radio signal strength indicator analysis along the corridor in order to create a path loss model for iBeacon. Two cases are taken into account: line of sight and non-line of sight for model creation. For both cases two tests: Chi-square, Shapiro-Wilk have been performed. It has also been checked if the HCI (Host Controller Interface) is a source with a memory. Acquired data have been filtered with different type of filters, e.g. median, moving average and then compared. Next, the authors evaluated the indoor positioning trilateration algorithms with the use of created model for exemplary hall. The RSSI map (radiomap) was created and the logarithm propagation model was designed. The logarithmic model estimated distance with average error 1.09m for 1 – 9m and 1.75m for 1-20m and after trilateration, the positions with average error 2.45m was achieved. A statistical analysis for acquiring data led to the final conclusion which enhanced knowledge about positioning based on the popular iBeacon technology.

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