scholarly journals Implementation of Software Radio System for IEEE 802.15.4 Physical Layer Using USRP and GNU Radio

2010 ◽  
Vol 21 (11) ◽  
pp. 1214-1219
Author(s):  
Dae-Hyeon Park ◽  
Young-Sik Kim
Keyword(s):  
Ieee 802.15.4 ◽  
Software Radio ◽  
Physical Layer ◽  
Gnu Radio ◽  
Radio System

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

Universal Software Radio Peripheral/GNU Radio-Based Implementation of a Software-Defined Radio Communication System

2019 ◽  
pp. 227-240
Author(s):  
Ehsan Sheybani
Keyword(s):  
Communication System ◽  
Software Defined Radio ◽  
Software Radio ◽  
Block Code ◽  
Radio Station ◽  
Frequency Change ◽  
Gnu Radio ◽  
Radio Communication ◽  
Space Communications ◽  
Radio Communication System

Challenges involved in space communications across wireless channels call for new approaches to radio systems. Due to the growing need for frequency change in modern wireless systems, an adaptive radio system has the highest demand. Software-defined radios (SDR) offer this type of adaptivity as well as compatibility with other standard platforms such as USRP/GNU radio. Despite limitations of this approach due to hardware components, viable modeling and simulation as well as deployable systems are possible using this platform. This chapter presents a detailed implementation procedure for a USRP/GNU radio-based SDR communication system that can be used for practical experiments as well as an academic lab in this field. In this experiment the USRP has been configured to receive signal from a local radio station using the BasicRX model daughterboard. The programmable USRP executes Python block code implemented in the GNU Radio Companion (GRC) on Ubuntu OS.

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

scholarly journals Experimental Interference Robustness Evaluation of IEEE 802.15.4-2015 OQPSK-DSSS and SUN-OFDM Physical Layers for Industrial Communications

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1045 ◽  
Author(s):  
Pere Tuset-Peiró ◽  
Francisco Vázquez-Gallego ◽  
Jonathan Muñoz ◽  
Thomas Watteyne ◽  
Jesus Alonso-Zarate ◽  
...  
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Ieee 802.15.4 ◽  
Physical Layer ◽  
Direct Sequence Spread Spectrum ◽  
Spectrum Efficiency ◽  
Delivery Ratio ◽  
The Sun ◽  
Physical Layers ◽  
The Impact ◽  
Industrial Communications

In this paper, we experimentally evaluate and compare the robustness against interference of the OQPSK-DSSS (Offset Quadrature Phase Shift Keying-Direct Sequence Spread Spectrum) and the SUN-OFDM (Smart Utility Network-Orthogonal Frequency Division Multiplexing) physical layers, as defined in the IEEE 802.15.4-2015 standard. The objective of this study is to provide a comprehensive analysis of the impact that different levels of interference produce on these modulations, in terms of the resulting PDR (Packet Delivery Ratio) and depending on the length of the packet being transmitted. The results show that the SUN-OFDM physical layer provides significant benefits compared to the ubiquitous OQPSK-DSSS in terms of interference robustness, regardless of the interference type and the packet length. Overall, this demonstrates the suitability of choosing the SUN-OFDM physical layer when deploying low-power wireless networks in industrial scenarios, especially taking into consideration the possibility of trading-off robustness and spectrum efficiency depending on the application requirements.

scholarly journals Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Chaozhu Zhang ◽  
Jinan Han ◽  
Ke Li
Keyword(s):  
High Speed ◽  
Software Radio ◽  
Cordic Algorithm ◽  
Digital Receiver ◽  
Radio System ◽  
Modulation And Demodulation ◽  
Phase Rotation ◽  
Quartus Ii ◽  
Computing Speed ◽  
Rotation Estimation

The numerical controlled oscillator has wide application in radar, digital receiver, and software radio system. Firstly, this paper introduces the traditional CORDIC algorithm. Then in order to improve computing speed and save resources, this paper proposes a kind of hybrid CORDIC algorithm based on phase rotation estimation applied in numerical controlled oscillator (NCO). Through estimating the direction of part phase rotation, the algorithm reduces part phase rotation and add-subtract unit, so that it decreases delay. Furthermore, the paper simulates and implements the numerical controlled oscillator by Quartus II software and Modelsim software. Finally, simulation results indicate that the improvement over traditional CORDIC algorithm is achieved in terms of ease of computation, resource utilization, and computing speed/delay while maintaining the precision. It is suitable for high speed and precision digital modulation and demodulation.

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