Software defined radio on digital communications: A new teaching tool

Reis, Andre Luiz Garcia; Selva, Andre F. B.; Lenzi, Karlo G.; Barbin, S. E.; Meloni, Luís Geraldo Pedroso

doi:10.1109/wamicon.2012.6208436

Cited by 18 publications

(13 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even though numerous researchers have explored the use of SDRs in undergraduate electrical engineering education for teaching basic communications engineering concepts, there is a lack of projects exploring more advanced topics of current interest to the wireless communications industry such as cognitive radios and dynamic spectrum allocation at undergraduate level. This paper presents one such project where a dynamic wireless spectrum allocation scheme was implemented using GNU Radio and HackRFs.…”

Section: Related Workmentioning

confidence: 99%

Dynamic wireless spectrum access using GNU Radio and software‐defined radios

Regula

Gilbert

Sheikh

2019

Int J Communication

View full text Add to dashboard Cite

This paper presents the design, implementation, and results from a dynamic wireless spectrum access system built using GNU Radio and software-defined radios (SDRs) as part of an undergraduate senior design project. The project involved designing and implementing a dynamic wireless spectrum access system in which the secondary user (SU) learns the unknown transmission behavior (channel occupancy and time slots) of the primary user (PU) and then opportunistically transmits during time slots and using channels when they are not being used by the PUs. The main design objective was to maximize the throughput of the SU while minimizing the interference to the PU. A transmitted signal energy detection algorithm with an adaptive threshold was employed to set the channel states as occupied or not occupied. Channel state information was used to determine the PU behavior in a deterministic manner such that the unused time slots and channels could be exploited. A channel allocation scheme for the SU is proposed using the PU channel occupancy information to calculate the channel(s) and time slots available to the SU at any given time. Simulation and physical testing of the system validate the proposed algorithms. Students' feedback affirms GNU Radio and SDRs to be an effective platform for introducing abstract mathematical communications theory concepts, such as cognitive radios and dynamic spectrum allocation, in a hands-on manner.

show abstract

Section: Related Workmentioning

confidence: 99%

Dynamic wireless spectrum access using GNU Radio and software‐defined radios

Regula

Gilbert

Sheikh

2019

Int J Communication

View full text Add to dashboard Cite

show abstract

“…Very popular and known packages as GNU-Radio [4], LabVIEW [5], MATLAB [6], all of them with RTL-SDR support, have been tested for our objective, but we finally propose to use PothoSDR [7] and SDR# [8], which is what the authors are using in the classroom. Alternatives like MATLAB or LabVIEW were discarded due high licensing cost and GNU-Radio was dropped because it needs a working Linux platform.…”

Section: Sdr Softwarementioning

confidence: 99%

Software Defined Radio (Sdr) on Radiocommunications Teaching

Ortuño¹,

Pérez-Iñigo²

2016

INTED2016 Proceedings

View full text Add to dashboard Cite

The recent outbreak of Software Defined Radios (SDR), where traditionally hardware components are substituted by software, have revolutionized the way we understand and manage radiocommunications. The current state of technology allows low cost SDR receivers to tune emissions in a simple way with almost no experience and little effort. The great flexibility of this equipment allows a perfect adaptation of the practice part of the subject to the theory objectives and makes possible to learn outside the classroom, something unthinkable until now. To achieve this, the student only needs a low-cost SDR receiver, a computer and some free software. This paper presents a new teaching methodology for practicing radiocommunications subject using a workstation based on a SDR device that can receive, display and analyze radio transmissions. Subject learning outcomes and skills are acquired and strengthened through experimentation with this new kind of devices. This platform also represents a significant saving because avoids our university to buy expensive and closed "training kits".

show abstract

“…Software Defined Radio (SDR) is a "Radio in which some or all of the physical layer functions are software defined" [3]. Traditionally, these physical layer functions are implemented in hardware.…”

Section: Software Defined Radiomentioning

confidence: 99%

Experimental study on wide band FM receiver using GNURadio and RTL-SDR

Vachhani

Mallari

2015

2015 International Conference on Advances in Computing, Communications and Informatics (ICACCI)

View full text Add to dashboard Cite

This paper focuses on the open source GNURadio Software and studies its use as a research tool coupled with USRP and RTL SDR. USRP, RTL SDR and GNU Radio software suite is introduced and briefly discussed. GNU Radio software suite can act as a simulation tool or a software subsystem to drive a SDR transceiver hardware. This is shown by implementing WBFM receiver using RTL SDR with GNU Radio. It concludes by comparing the cheap yet effective RTL SDR with the costly but accurate USRP hardware.

show abstract

Software defined radio on digital communications: A new teaching tool

Cited by 18 publications

References 3 publications

Dynamic wireless spectrum access using GNU Radio and software‐defined radios

Dynamic wireless spectrum access using GNU Radio and software‐defined radios

Software Defined Radio (Sdr) on Radiocommunications Teaching

Experimental study on wide band FM receiver using GNURadio and RTL-SDR

Contact Info

Product

Resources

About