scholarly journals EXPERIMENTAL INVESTIGATION OF UWB SIGNAL INTERFERENCE EFFECT BETWEEN UWB COMMUNICATION DEVICE AND VSAT

2019 ◽  
Vol 82 (1) ◽  
Author(s):  
Azizi Mohd Ali ◽  
Raja Syamsul Azmir Raja Abdullah ◽  
Shaiful Jahari Hashim ◽  
Mohd Fadlee A. Rasid ◽  
Aduwati Sali ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interference Effect ◽  
Interference Mitigation ◽  
Ultra Wideband ◽  
Signal Interference ◽  
Research Trend ◽  
Radio Communication ◽  
Small Aperture ◽  
Communication Device ◽  
Uwb Communication

This paper presents the experimental investigation of the Ultra Wideband (UWB) signal interference effect between commercialized UWB communication device (UCD) and Very Small Aperture Terminal (VSAT). Recent research trend shows increase of interest to make use of UWB signal for Internet of Things (IoT) application. It is expected that IoT devices based on UWB technology increases in the future and can become unattended jammer to other services. The analysis involves two sets of experimental set up: i) UWB communication system is the interference victim from narrow band signal and other UWB transmission and ii) signal radiated from UCD devices using UWB signal interfere to other existing radio communication services which in this case a VSAT. The level of interference is evaluated based on the measured bit error rate (BER), round trip time (RTT) and carrier over noise ratio (C/N). The finding from this paper can be used as a guide for new interference mitigation techniques and spectrum planning purposes.

Mitigation of wideband interference on UWB-IR transmission using multi-carrier templates

2009 ◽  
Vol 1 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Madan Kumar Lakshmanan ◽  
Homayoun Nikookar
Keyword(s):  
Interference Mitigation ◽  
Channel Model ◽  
Path Loss ◽  
Wireless Systems ◽  
Ultra Wideband ◽  
Propagation Channel ◽  
Ieee 802.11A ◽  
Wideband Interference ◽  
Ir Transmission ◽  
Uwb Communication

Ultra wideband (UWB) wireless systems are highly susceptible to interference from other services. To reduce the effect of interference from co-existing sources such as the WLAN standard IEEE 802.11a on UWB Communication, the construction of a modified template waveform using multi-carrier sinusoids is proposed in Ohno and Ikegami (2003), Ohno et al. (2004), Ohno and Ikegami (2006), and Lakshmanan and Nikookar (2007). However, the work in Ohno and Ikegami (2003), Ohno et al. (2004), Ohno and Ikegami (2006), and Lakshmanan and Nikookar (2007) considers a free space propagation channel model with no treatment of the frequency dependence of the path loss. In this paper, we broaden the study by taking into consideration a frequency-dependent path loss environment. The novelty of the work is in the investigation of the effect of frequency dependency of the path loss on the performance of interference mitigation schemes.

scholarly journals Simulation model of ultra-wideband radio communication system under the influence of interference

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
A.A. Molev ◽  
◽  
K.D. Titov ◽  
Keyword(s):  
Simulation Model ◽  
Communication System ◽  
Piecewise Linear ◽  
Ultra Wideband ◽  
Signal Interference ◽  
General Description ◽  
Radio Communication ◽  
Use Of Data ◽  
Radio Communication System ◽  
Wideband Radio

An article describes results of development of simulation model of the operation of an ultra-wideband radio communication system under the conditions of influence of interference, based on the representation of the communication system and sources of radio interference in the form of a set of piecewise linear units. A general description of the purpose, the relationship of the models, as well as general algorithm for modeling and calculating performance indicators was given. The developed model allows take into account the peculiarities of the functioning of the ultra-wideband radio communication system in conditions of interference, in the interests of a comparative analysis of various options for building a communication system, their characteristics performance, assessing the degree of use of data transmission capabilities (bandwidth) taking into account routing and adaptation to the signal-interference environment.

Matlab- Based Interference Mitigation in WPAN IR-UWB

2015 ◽  
Vol 3 (2) ◽  
pp. 1-14
Author(s):  
Abbas Saleh Hassan
Keyword(s):  
Short Range ◽  
Interference Mitigation ◽  
Impulse Radio ◽  
Ultra Wideband ◽  
Area Network ◽  
Wireless Technology ◽  
Technology System ◽  
Rake Receivers ◽  
High Data ◽  
Layer Solution

Impulse Radio - Ultra Wideband (IR-UWB) is a wireless technology system that offers a high data rate within a short range. Therefore, IR-UWB system is regarded as an excellent physical layer solution to the multi-piconet Wireless Personal Area Network (WPAN) applications. In spite of all the advantages of IR-UWB, there are several fundamental and practical challenges that need to be carefully addressed. The big and most important one among these challenges is the interference. Two types of Rake receivers are designed and simulated to highly mitigate the MUI these are (PRake receiver) and (SRake receiver).

scholarly journals Robustness against Chirp Signal Interference of On-Board Vehicle Geodetic and Low-Cost GNSS Receivers

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5257
Author(s):  
Franc Dimc ◽  
Polona Pavlovčič-Prešeren ◽  
Matej Bažec
Keyword(s):  
Interference Mitigation ◽  
Low Cost ◽  
Density Ratio ◽  
Autonomous Driving ◽  
Signal Interference ◽  
Noise Power ◽  
Reference Base ◽  
Noise Power Spectral Density ◽  
Processing Abilities ◽  
Gnss Receivers

Robust autonomous driving, as long as it relies on satellite-based positioning, requires carrier-phase-based algorithms, among other types of data sources, to obtain precise and true positions, which is also primarily true for the use of GNSS geodetic receivers, but also increasingly true for mass-market devices. The experiment was conducted under line-of-sight conditions on a straight road during a period of no traffic. The receivers were positioned on the roof of a car travelling at low speed in the presence of a static jammer, while kinematic relative positioning was performed with the static reference base receiver. Interference mitigation techniques in the GNSS receivers used, which were unknown to the authors, were compared using (a) the observed carrier-to-noise power spectral density ratio as an indication of the receivers’ ability to improve signal quality, and (b) the post-processed position solutions based on RINEX-formatted data. The observed carrier-to-noise density generally exerts the expected dependencies and leaves space for comparisons of applied processing abilities in the receivers, while conclusions on the output data results comparison are limited due to the non-synchronized clocks of the receivers. According to our current and previous results, none of the GNSS receivers used in the experiments employs an effective type of complete mitigation technique adapted to the chirp jammer.

scholarly journals Improvement of Ultra-wideband Link Performance over Bands Requiring Interference Mitigation in Korea

ETRI Journal ◽  
2010 ◽  
Vol 32 (1) ◽  
pp. 44-52 ◽  
Author(s):  
Ahmad M. Rateb ◽  
Syarifah Kamilah Syed-Yusof ◽  
Norsheila Fisal
Keyword(s):  
Interference Mitigation ◽  
Ultra Wideband ◽  
Link Performance

scholarly journals FDTD Computation of Space/Time Integrated Electromagnetic Lagrangian: New Insights on Mutually Coupled Wide-band Antenna Design

2021 ◽  
Author(s):  
Debdeep Sarkar ◽  
Yahia Antar
Keyword(s):  
Electromagnetic Interference ◽  
Interference Mitigation ◽  
Near Field ◽  
Time Integration ◽  
Wide Band ◽  
Space Time ◽  
Ultra Wideband ◽  
Mimo Antennas ◽  
Electric And Magnetic Fields ◽  
Spatio Temporal

In this paper, we develop a formalism based on either spatially or temporally integrated electromagnetic (EM) Lagrangian, which provides new insights about the near-field reactive energy around generic antennas for arbitrary spatio-temporal excitation signals. Using electric and magnetic fields calculated via FDTD technique and interpolation routines, we compute and plot the normalized values of space/time integrated EM Lagrangian around antennas. While the time-integration of EM Lagrangian sheds light onto the spatial distribution of inductive/capacitive reactive energy, time-variation of spatially integrated EM Lagrangian can help in design of ultra-wideband (UWB) MIMO antennas with low mutual coupling. The EM Lagrangian approach can assist in design of energy harvesting and wireless power transfer systems, as well as for electromagnetic interference mitigation applications.

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