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Our goal is to use cognitive radio and software defined radios to improve wireless communication efficiency and spectrum utilization. We will use USRP software defined radios to detect spectrum use and allow new users to transmit over unused portions of licensed spectrum. Our project plan follows the S.I.M.I.L.A.R. framework and within our budget we will implement a cognitive radio system with USRPs transmitting at 5GHz to demonstrate dynamic spectrum access.
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Final Report of Project A Low
The document provides a final report from the LoCom group on their project using low-complexity cognitive radio with commercial off-the-shelf equipment. It discusses the theoretical frame of software defined radio, GNU Radio, Universal Software Radio Peripheral, cognitive radio and Bluetooth sensing. It also covers their GNU Radio installation process and outcomes of developing an OFDM communication demonstration between two USRP devices using voice transmission. The report concludes with future works planned for the next semester.
Sdr the future of radio
SDR and cognitive radio technologies will enable more flexible use of radio spectrum and facilitate interoperability between different communication standards. Key drivers include the need for first responder communications during emergencies, the increasing number of wireless standards, and the scarce availability of radio spectrum. SDR allows communication standards and functionality to be reconfigured through software downloads. Future technologies like improved ADCs, DSPs, and cognitive abilities will advance SDR and spectrum sensing capabilities. Both military and commercial applications are expected to benefit from SDR and cognitive radio.
Disaster management
The document discusses using cognitive radio technology for disaster management and emergency services. It proposes using cognitive radios to intelligently identify unused spectrum and optimize spectrum utilization during disasters when emergency networks are overloaded. The cognitive radios would be able to quickly find and communicate with each other on available channels using a random rendezvous algorithm, and configure radio parameters to communicate on different standards used by emergency services.
Spectrum Measurements for IEEE 802.22 Wireless Regional Area Networks
This document discusses cognitive radio and the IEEE 802.22 standard for wireless regional area networks. It provides background on fixed spectrum policy and the need for dynamic spectrum access. The key points are:
- The IEEE 802.22 standard was developed in 2004 to allow unlicensed access to unused TV spectrum between 54 and 862 MHz through cognitive radio technology.
- Cognitive radio can sense available spectrum, identify unused TV bands, and utilize this spectrum opportunistically without interfering with licensed users.
- It discusses the architecture of primary and secondary networks, with licensed primary networks and unlicensed secondary networks that must avoid interfering with primary users when accessing spectrum.
- Spectrum measurements between 120-600 MHz
RF Experiments in Raspberry Pi
Radiojitter Concepts Lab is an Indian product development company focused on LoRa-based solutions for smart cities. They provide consultancy services for LoRaWAN gateway deployment. The trainer, Priyasloka, has 19+ years of experience in engineering and management roles in defense and aerospace. The training covers topics like NOAA weather satellite reception, AIS reception, software defined radio with GNU Radio and MATLAB, and amateur radio protocols on a Raspberry Pi with an RTL-SDR device. Setup and configuration of various open source SDR software like GQRX and specific projects involving ADS-B reception and WSPR transmission will also be demonstrated.
Performance Analysis of Cognitive Radio for Wi-Fi Signals Using Cyclostationa...
The need for radio spectrum usage is increasing day by day with recent advancements in wireless system. But there is limited amount of spectrum available. So that for solving this problem Cognitive Radio (CR) is used for purpose of the spectrum utilization properly. Basically the Licensed users use the licensed bands but the unlicensed users should always check spectrum with the help of CR technology. The main aim of cognitive radio is to sense the spectrum continuously. In this paper, we have provided the proposal that how the capacity of the system can be increased by reuse the unused licensed band by simulating a Cognitive radio system. The secondary users can occupy free space (spectrum holes) and also licensed bands by continuously monitoring the spectrum. The requirements of cognitive radio systems will be investigated by considering spectrum sensing techniques. To achieve this, a Cyclostationary Spectrum Sensing technique is studied and applied to detect OFDM signals in a noisy environment. The results are obtained for the applications employed in high frequency, such as, Wi-Fi.
Gnu radio lecture
The document provides an introduction to GNU Radio, including:
1. GNU Radio is an open source software toolkit for building software defined radios and signal processing systems. It works with low-cost hardware like the USRP to allow processing of waveforms in software.
2. The GNU Radio architecture includes the USRP hardware which handles analog-digital conversion and the FPGA, and a software architecture built on signal processing blocks that can be connected graphically.
3. Programming GNU Radio involves tasks like creating a "Hello World" program and building an FM radio receiver by connecting different signal processing blocks in software.
MaxEye Company Presentation
MaxEye Company Presentation - We are a Test and Measurement Company with key focus in RF/Wireless and Automotive test
Lab based ppt pluto-sdr_final
This document discusses using a Pluto-SDR device with GNU Radio Companion software to implement basic digital signal processing and modulation schemes. It describes how software defined radio works by implementing hardware processes in software. Simple modulation schemes like AM and FM were tested using the Pluto-SDR with GNU Radio and an oscilloscope tool to view the output signals. Cyclic sine waves, AM modulation, and an FM receiver were implemented as examples. The goal was to learn the concepts of software defined radio in a practical way using open source tools.
Software defined radio....
This document summarizes a presentation on software defined radio (SDR). It discusses the advantages of SDR over standard radio, including being reconfigurable and able to serve different protocols. It outlines the components of SDR and describes its ideal architecture. The document then provides a history of SDR, including early military projects like SPEAKeasy, and discusses practical applications like the Joint Tactical Radio System and amateur radio use of SDR.
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Capria no_video_ship_detection_with_dvbt_software_defined_passive_radar
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Cognitive Radio: When might it Become Economically and Technically Feasible?
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A Universal Printed Antenna for UHF RFID Applications
A Universal Printed Antenna for UHF RFID Applications
Spectrum Measurements for IEEE 802.22 Wireless Regional Area Networks
Spectrum Measurements for IEEE 802.22 Wireless Regional Area Networks
Performance Analysis of Cognitive Radio for Wi-Fi Signals Using Cyclostationa...
Performance Analysis of Cognitive Radio for Wi-Fi Signals Using Cyclostationa...
Ppt final
- 1. Capstone I Abdullah Alanazi Jose Rico Mashel Alanazi Zaher Alzaher Cognitive Radio
- 2. Introduction Problem Statement What is Radio Frequency (RF) Spectrum
- 4. RF Spectrum Broadcast TV (UHF) Satellite TV 3G Wireless FM 1.7–1.85 GHz 88–108 MHz 12.2–12.7 GHz 470–806 MHz 2.5–2.69 GHz
- 6. Solution Cognitive Radio Motivation
- 7. FREE BANDs
- 8. Tools Software GNU C++ Python USRP
- 9. Past Applications Amateur Radio Transceivers Software GPS RFID Detector/Reader HDTV Transmitter Radio Astronomy TiVo Equivalent for Radio
- 10. Goal Our goal is to use Cognitive Radio to achieve highly reliable and highly efficient wireless communications, and to improve the utilization of the (RF) spectrum.
- 11. Scenario Transmitter Receiver USRP (X) USRP (Y) New Users Detecting Primary User USRP (Z) F = 5 GHz
- 12. Budget
- 14. Project Plan
- 15. S.I.M.I.L.A.R.
- 16. Conclusion Problem Overcrowding Cognitive Radio Tools Parts Budget Plan