A parametric single scattering channel model for non-line-of-sight ultraviolet communications

2008 ◽  
Author(s):  
Haipeng Ding ◽  
Gang Chen ◽  
Arun K. Majumdar ◽  
Zhengyuan Xu
Keyword(s):  
Channel Model ◽  
Single Scattering ◽  
Line Of Sight ◽  
Non Line Of Sight

scholarly journals A Statistical Channel Model for Stochastic Antenna Inclination Angles

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Gang Liu ◽  
Ming Zhang ◽  
Yaming Bo
Keyword(s):  
Indoor Environment ◽  
Channel Model ◽  
Three Dimensional ◽  
Statistical Characteristics ◽  
Line Of Sight ◽  
Static State ◽  
Inclination Angles ◽  
Short Time ◽  
Tracing Method ◽  
Non Line Of Sight

The actions of a person holding a mobile device are not a static state but can be considered as a stochastic process since users can change the way they hold the device very frequently in a short time. The change in antenna inclination angles with the random actions will result in varied received signal intensity. However, very few studies and conventional channel models have been performed to capture the features. In this paper, the relationships between the statistical characteristics of the electric field and the antenna inclination angles are investigated and modeled based on a three-dimensional (3D) fast ray-tracing method considering both the diffraction and reflections, and the radiation patterns of an antenna with arbitrary inclination angles are deducted and included in the method. Two different conditions of the line-of-sight (LOS) and non-line-of-sight (NLOS) in the indoor environment are discussed. Furthermore, based on the statistical analysis, a semiempirical probability density function of antenna inclination angles is presented. Finally, a novel statistical channel model for stochastic antenna inclination angles is proposed, and the ergodic channel capacity is analyzed.

Scattered Propagation MIMO Channel Model for Non-Line-of-Sight Ultraviolet Optical Transmission

2017 ◽  
Vol 29 (21) ◽  
pp. 1907-1910 ◽  
Author(s):  
Heng Qin ◽  
Yong Zuo ◽  
Feiyu Li ◽  
Risheng Cong ◽  
Lingchao Meng ◽  
...  
Keyword(s):  
Optical Transmission ◽  
Channel Model ◽  
Mimo Channel ◽  
Line Of Sight ◽  
Non Line Of Sight

Research of Ultraviolet Non-Line-of-Sight Single Scattering Link Model

2010 ◽  
Vol 30 (11) ◽  
pp. 3148-3152
Author(s):  
何华 He Hua ◽  
柯熙政 Ke Xizheng ◽  
赵太飞 Zhao Taifei
Keyword(s):  
Single Scattering ◽  
Line Of Sight ◽  
Link Model ◽  
Non Line Of Sight

scholarly journals 5G system throughput performance evaluation using Massive-MIMO technology with Cluster Delay Line channel model and non-line of sight scenarios

2021 ◽  
Vol 13 (2) ◽  
pp. 40-45
Author(s):  
John Baghous
Keyword(s):  
Massive Mimo ◽  
Channel Model ◽  
Fourth Generation ◽  
System Throughput ◽  
Line Of Sight ◽  
High Data ◽  
Mobile Cellular ◽  
New Applications ◽  
Mimo Technology ◽  
Non Line Of Sight

The fourth-generation system for mobile cellular communications (4G) has achieved great developments. The main problem here is that, with the passage of time and technical development, the need for new applications and services has emerged, and thus we need a new system that supports these matters in addition to the problems and limitations. One of the main challenges that the 4G system suffers from is the ability to support a larger number of devices, low latency, working in real time, provide greater capacity, in addition to providing a high data rate (bit rate) – hence 4G stands unable to support many new applications. This is what made researchers aspire to overcome these problems or reduce their impact to the maximum extent and this is what we expect to achieve in the new generation (5G). In this research, a presentation was made of the 5G system regarding with one of its most important techniques (Massive MIMO technology), clarification of some concepts related to the study such as throughput and NLOS (Non-Line of Sight), as well as the channel model used. The results of the experiments were presented with the discussion.

Integrating the Non-Line of Sight Launching System (NLOS-LS) in the United States Navy

2007 ◽  
Author(s):  
Jonathon Emis ◽  
Bryan Huang ◽  
Timothy Jones ◽  
Mei Li ◽  
Don Tumbocon
Keyword(s):  
United States ◽  
United States Navy ◽  
The United States ◽  
Line Of Sight ◽  
Non Line Of Sight
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