Stand-Off Distances for Non-Line-of-Sight Maritime Mobile Applications in 5 GHZ Band

Lee, Yee Hui; Dong, Fengquan; Meng, Yu Song

doi:10.2528/pierb13080808

Cited by 7 publications

(6 citation statements)

References 17 publications

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“…The use of radio propagation simulation software on large scenarios facilitates a relatively fast estimation of the channel characteristics, such as the power delay profile, signal field distribution, time of arrival, among others [11][12][13][14][15][16][17][18]. The following studies have simulated radio repeater propagation environments [11], using 3D Simulation software to evaluate the radio frequency propagation on outdoor to indoor scenarios for high-speed communications [12][13] as well as a vessel to harbour communications using a Shoot and bounce ray-tracing technique [14] with different vessel location LOS and NLOS.…”

Section: Studies On Simulationmentioning

confidence: 99%

UHF Radio Channel Measurements and Prediction for Maritime Communications

Quiñónez¹,

Abdulaziz²,

Abd‐Alhameed³

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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Radio Service Coverage Area of UHF Repeater systems is one of the most important performance elements for a ship to shore radio communications within industries around the world. Each implemented system is designed to fulfill their specific demands, which in this case is balancing coverage limitations and transmission power restrictions due to petrochemical industry regulations. This paper presents the performance of an Analogue UHF Repeater Extender characterized by a 3D Shoot and Bounce Ray Tracing Propagation Model combining efforts of field strength distribution, time of arrival, and propagation-channel environment. The work is focused on the extender's field measurements results in comparison to a Wireless InSite 3D SBR simulation model.

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Section: Studies On Simulationmentioning

confidence: 99%

UHF Radio Channel Measurements and Prediction for Maritime Communications

Quiñónez¹,

Abdulaziz²,

Abd‐Alhameed³

2022

Proceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9

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“…There are also other works on channel modeling for the over-the-sea environment with a focus on the effect of the evaporation duct height in the marine environment [22,23], and different frequencies taking into account such parameters as signal strength or antenna height [24][25][26][27]. Among all the works that have been published so far to develop wireless channel models for the ocean environment, we decided to discuss and comparatively analyze [5,[8][9][10][11][12][13][14][15][16][17][18][19][20][21], because the implementation scenario and frequency used in each of these works are different.…”

Section: Classification Of Over-the-sea Channel Modelsmentioning

confidence: 99%

“…It is inevitable to lose the aircraft in the sea or have vehicular collision due to the loss of communication [25]. To establish a safe operation protocol for airborne maritime surveillance operations, path loss and multipath effects [26,27] of the communication channels are key concerns. In the study presented in [9], the FDTD method is introduced to quantify the relevant parameters of maritime communication channels, through the simulation of the electromagnetic phenomena that contribute to the received waveform envelope in shadowing conditions.…”

Section: Marine Communication Channel Modeling Based On the Finite DImentioning

confidence: 99%

Wireless Channel Models for Over-the-Sea Communication: A Comparative Study

Habib

Moh

2019

Applied Sciences

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Over the past few years, the modeling of wireless channels for radio wave propagation over the sea surface has drawn the attention of many researchers. Channel models are designed and implemented for different frequencies and communication scenarios. There are models that emphasize the influence of the height of the evaporation duct in the marine environment, as well as models that deal with different frequencies (2.5, 5, and 10 GHz, etc.) or the impact of various parameters, such as antenna height. Despite the increasing literature on channel modeling for the over-the-sea marine environment, there is no comprehensive study that focuses on key concepts that need to be considered when developing a new channel model, characteristics of channel models, and comparative analysis of existing works along with their possible improvements and future applications. In this paper, channel models are discussed in relation to their operational principles and key features, and they are compared with each other in terms of major characteristics and pros and cons. Some important insights on the design and implementation of a channel model, possible applications and improvements, and challenging issues and research directions are also discussed. The main goal of this paper is to present a comparative study of over-the-sea channel models for radio wave propagation, so that it can help engineers and researchers in this field to choose or design the appropriate channel models based on their applications, classification, features, advantages, and limitations.

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“…The direct path of the electromagnetic waves between the transmitter and receiver is called the LOS propagation path. This explicit path is the communication link of radio frequency (RF), and at the same time, it contains the bulk of the received signal in the receiving antenna [1][2][3]. It must meet the condition that there are no obstacles or blocking the direct propagation path so that the signal level is not affected.…”

Section: Introductionmentioning

confidence: 99%

Efficiency Effect of Obstacle Margin on Line-of-Sight in Wireless Networks

Almekhlafi¹,

Eisa²,

Al‐Wesabi³

et al. 2022

Computers, Materials &Amp; Continua

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Line-of-sight clarity and assurance are essential because they are considered the golden rule in wireless network planning, allowing the direct propagation path to connect the transmitter and receiver and retain the strength of the signal to be received. Despite the increasing literature on the line of sight with different scenarios, no comprehensive study focuses on the multiplicity of parameters and basic concepts that must be taken into account when studying such a topic as it affects the results and their accuracy. Therefore, this research aims to find limited values that ensure that the signal reaches the future efficiently and enhances the accuracy of these values' results. We have designed MATLAB simulation and programming programs by Visual Basic .NET for a semi-realistic communication system. It includes all the basic parameters of this system, taking into account the environment's diversity and the characteristics of the obstacle between the transmitting station and the receiving station. Then we verified the correctness of the system's work. Moreover, we begin by analyzing and studying multiple and branching cases to achieve the goal. We get several values from the results, which are finite values, which are a useful reference for engineers and designers of wireless networks.

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Stand-Off Distances for Non-Line-of-Sight Maritime Mobile Applications in 5 GHZ Band

Cited by 7 publications

References 17 publications

UHF Radio Channel Measurements and Prediction for Maritime Communications

UHF Radio Channel Measurements and Prediction for Maritime Communications

Wireless Channel Models for Over-the-Sea Communication: A Comparative Study

Efficiency Effect of Obstacle Margin on Line-of-Sight in Wireless Networks

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