scholarly journals An Open-Source LoRa Physical Layer Prototype on GNU Radio

2020 ◽  
Author(s):  
Joachim Tapparel ◽  
Orion Afisiadis ◽  
Paul Mayoraz ◽  
Alexios Balatsoukas-Stimming ◽  
Andreas Burg
Keyword(s):  
Open Source ◽  
Physical Layer ◽  
Gnu Radio

Industry 4.0 Digital Technologies for data collection and control

2021 ◽  
pp. 43-58
Author(s):  
S. S. Yudachev ◽  
P. A. Monakhov ◽  
N. A. Gordienko
Keyword(s):  
Data Collection ◽  
Open Source ◽  
Software Defined Radio ◽  
Block Diagram ◽  
Data Access ◽  
Gnu Radio ◽  
Time Data ◽  
Object A ◽  
Data Propagation ◽  
And Control

This article describes an attempt to create open source LabVIEW software, equivalent to data collection and control software. The proposed solution uses GNU Radio, OpenCV, Scilab, Xcos, and Comedi in Linux. GNU Radio provides a user-friendly graphical interface. Also, GNU Radio is a software-defined radio that conducts experiments in practice using software rather than the usual hardware implementation. Blocks for data propagation, code deletion with and without code tracking are created using the zero correlation zone code (ZCZ, a combination of ternary codes equal to 1, 0, and –1, which is specified in the program). Unlike MATLAB Simulink, GNU Radio is open source, i. e. free, and the concepts can be easily accessed by ordinary people without much programming experience using pre-written blocks. Calculations can be performed using OpenCV or Scilab and Xcos. Xcos is an application that is part of the Scilab mathematical modeling system, and it provides developers with the ability to design systems in the field of mechanics, hydraulics and electronics, as well as queuing systems. Xcos is a graphical interactive environment based on block modeling. The application is designed to solve problems of dynamic and situational modeling of systems, processes, devices, as well as testing and analyzing these systems. In this case, the modeled object (a system, device or process) is represented graphically by its functional parametric block diagram, which includes blocks of system elements and connections between them. The device drivers listed in Comedi are used for real-time data access. We also present an improved PyGTK-based graphical user interface for GNU Radio. English version of the article is available at URL: https://panor.ru/articles/industry-40-digital-technology-for-data-collection-and-management/65216.html

scholarly journals SCATTER PHY: An Open Source Physical Layer for the DARPA Spectrum Collaboration Challenge

Electronics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1343 ◽  
Author(s):  
Felipe A. P. de Figueiredo ◽  
Dragoslav Stojadinovic ◽  
Prasanthi Maddala ◽  
Ruben Mennes ◽  
Irfan Jabandžić ◽  
...  
Keyword(s):  
Research And Development ◽  
Open Source ◽  
Real Time ◽  
Software Defined Radio ◽  
Spectrum Sharing ◽  
The United States ◽  
Radio Spectrum ◽  
Physical Layer ◽  
Phy Layer ◽  
And Performance

DARPA, the Defense Advanced Research Projects Agency from the United States, has started the Spectrum Collaboration Challenge with the aim to encourage research and development of coexistence and collaboration techniques of heterogeneous networks in the same wireless spectrum bands. Team SCATTER has been participating in the challenge since its beginning, back in 2016. SCATTER’s open-source software defined physical layer (SCATTER PHY) has been developed as a standalone application, with the ability to communicate with higher layers through a set of well defined messages (created with Google’s Protocol buffers) and that exchanged over a ZeroMQ bus. This approach allows upper layers to access it remotely or locally and change all parameters in real time through the control messages. SCATTER PHY runs on top of USRP based software defined radio devices (i.e., devices from Ettus or National Instruments) to send and receive wireless signals. It is a highly optimized and real-time configurable SDR based PHY layer that can be used for the research and development of novel intelligent spectrum sharing schemes and algorithms. The main objective of making SCATTER PHY available to the research and development community is to provide a solution that can be used out of the box to devise disruptive algorithms and techniques to optimize the sub-optimal use of the radio spectrum that exists today. This way, researchers and developers can mainly focus their attention on the development of smarter (i.e., intelligent algorithms and techniques) spectrum sharing approaches. Therefore, in this paper, we describe the design and main features of SCATTER PHY and showcase several experiments performed to assess the effectiveness and performance of the proposed PHY layer.

GNU radio open source vehicle detector

2011 ◽  
Author(s):  
Joseph M. Ernst ◽  
Victor A. Aboh ◽  
James V. Krogmeier ◽  
Darcy M. Bullock
Keyword(s):  
Open Source ◽  
Gnu Radio

Towards an Open Source IEEE 802.11p stack: A full SDR-based transceiver in GNU Radio

2013 ◽  
Author(s):  
Bastian Bloessl ◽  
Michele Segata ◽  
Christoph Sommer ◽  
Falko Dressler
Keyword(s):  
Open Source ◽  
Ieee 802.11P ◽  
Gnu Radio

scholarly journals SCATTER PHY: An Open Source Physical Layer for the DARPA Spectrum Collaboration Challenge

2019 ◽  
Author(s):  
Felipe Augusto Pereira de Figueiredo ◽  
Dragoslav Stojadinovic ◽  
Prasanthi Maddala ◽  
Ruben Mennes ◽  
Irfan Jabandžic ◽  
...  
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Spectral Efficiency ◽  
Software Defined Radio ◽  
High Performance ◽  
The United States ◽  
Physical Layer ◽  
Research Projects ◽  
Physical Interfaces ◽  
Wireless Spectrum

DARPA, the Defense Advanced Research Projects Agency from the United States, has started the Spectrum Collaboration Challenge with the aim to encourage research and development of coexistence and collaboration techniques of heterogeneous networks in the same wireless spectrum bands. Team SCATTER has been participating in the challenge since its beginning, back in 2016. SCATTER’s open-source software-defined physical layer (SCATTER PHY) has been developed as a standalone application, with the ability to communicate with higher layers of SCATTER’s system via ZeroMQ, and uses USRP X310 software-defined radio devices to send and receive wireless signals. SCATTER PHY relies on USRP’s ability to schedule timed commands, uses both physical interfaces of the radio devices, utilizes the radio’s internal FPGA board to implement custom high-performance filtering blocks in order to increase its spectral efficiency as well as enable reliable usage of neighboring spectrum bands. This paper describes the design and main features of SCATTER PHY and showcases the experiments performed to verify the achieved benefits.

Open-source physical-layer simulator for LTE systems

2012 ◽  
Author(s):  
Markus V. S. Lima ◽  
Camila M. G. Gussen ◽  
Breno N. Espindola ◽  
Tadeu N. Ferreira ◽  
Wallace A. Martins ◽  
...  
Keyword(s):  
Open Source ◽  
Physical Layer

An Advanced GNU Radio Receiver of IEEE 802.15.4 OQPSK Physical Layer

2021 ◽  
pp. 1-1
Author(s):  
Evan Faulkner ◽  
Zelin Yun ◽  
Shengli Zhou ◽  
Zhijie Shi ◽  
Song Han ◽  
...  
Keyword(s):  
Ieee 802.15.4 ◽  
Physical Layer ◽  
Radio Receiver ◽  
Gnu Radio

Implementation of Embedded Testbeds Using USRP and GNU-Radio for Performance Measurement and Analysis of PPS and PCO-Based Time Synchronizations

2021 ◽  
Vol 13 (1) ◽  
pp. 25-35
Author(s):  
Hyun Jae Park ◽  
Cheol-woong Lee ◽  
Taeyoung Shin ◽  
Byeong-hee Roh ◽  
Soo Bum Park ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Performance Measurement ◽  
Time Synchronization ◽  
Physical Layer ◽  
Gnu Radio ◽  
The Real ◽  
Real Environment ◽  
Synchronization Algorithm ◽  
Measurement And Analysis

In wireless networks, time synchronization is one of the key functions for the MAC and the physical layer because it is important to accurately transmit data by maintaining the order and consistency of transmission between nodes. The time synchronization can be divided into centralized and distributed methods and there are many synchronization schemes. However, there are little testbeds for comparing and analyzing various time synchronization schemes in a real environment. Most papers analyze the proposed time synchronization algorithm by simulation, and some testbeds are also configured for the proposed scheme only. In this paper, the authors build embedded testbeds using USRP and GNU-Radio. The two typical methods of the centralized and decentralized time synchronizations, PPS, and PCO-based schemes, respectively, are implemented on the testbeds and their performances are measured and analyzed in the real environment.

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