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Academic literature on the topic 'Radio-logicielle'
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Journal articles on the topic "Radio-logicielle"
Moy, C. "La radio logicielle : un sujet d’enseignement et un moyen d’enseigner les communications sans fil à l’université." J3eA 21 (2022): 1008. http://dx.doi.org/10.1051/j3ea/20221008.
Full text-Palicot, Jacques. "La radio logicielle : enjeux, contraintes et perspectives." Revue de l'Electricité et de l'Electronique -, no. 10 (2001): 60. http://dx.doi.org/10.3845/ree.2001.106.
Full textTchidjo Moyo, Noël, Eric Nicollet, Frédéric Lafaye, and Christophe Moy. "Concevoir pour l’ordonnancement temps réel. Prise en compte de l’ordonnancement temps réel durant la phase de conception d’une radio logicielle." Techniques et sciences informatiques 31, no. 7 (September 30, 2012): 869–95. http://dx.doi.org/10.3166/tsi.31.869-895.
Full textFerré, Guillaume, Romain Tajan, and Anthony Ghiotto. "Simulation d’un émetteur / récepteur ADS-B et décodage temps réel à l’aide : de MATLAB, d’une radio logicielle et d’une antenne patch." J3eA 15 (2016): 0003. http://dx.doi.org/10.1051/j3ea/2016003.
Full textDissertations / Theses on the topic "Radio-logicielle"
Haghighitalab, Delaram. "Récepteur radio-logicielle hautement numérisé." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066443.
Full textNowadays there is an increase in the number of standards being integrated in mobile devices. The main issues are battery life and the size of the device. The idea of a Software Defined Radio is to push the digitization process as close as possible to the antenna. Having most of the circuit in the digital domain allows it to be reconfigurable thus requiring less area and power consumption. In this thesis, we present the first implementation of a complete SDR receiver based on RF bandpass Sigma-Delta including a Variable-Gain LNA (VGLNA), an RF subsampled Sigma-Delta ADC, an RF digital down-conversion mixer and a polyphase multi-stage multi-rate decimation filter. VGLNA enlarges the dynamic range of the multi-standard receiver to achieve the requirements of the three targeted wireless standards. Also a mixed architecture, using both Source-Coupled Logic (SCL) and CMOS circuits, is proposed to optimize the power consumption of the RF digital circuits. Moreover, we propose a multi-stage comb filter architecture with polyphase decomposition to reduce the power consumption. The receiver is measured for three different standards in the 2.4 GHz ISM-band. Measurement results show that the receiver achieves 79 dB, 73 dB and 63 dB of dynamic range for the Bluetooth, ZigBee and WiFi standards respectively. The complete receiver, implemented in 130 nm CMOS process, has a 300 MHz tunable central frequency and consumes 63 mW under 1.2 V supply. Compared to other SDR receivers, the proposed circuit consumes 30% less power, the DR is 21 dB higher, IIP3 is 6 dB higher and the overall Figure of Merit is 24 dB higher
Haghighitalab, Delaram. "Récepteur radio-logicielle hautement numérisé." Electronic Thesis or Diss., Paris 6, 2015. http://www.theses.fr/2015PA066443.
Full textNowadays there is an increase in the number of standards being integrated in mobile devices. The main issues are battery life and the size of the device. The idea of a Software Defined Radio is to push the digitization process as close as possible to the antenna. Having most of the circuit in the digital domain allows it to be reconfigurable thus requiring less area and power consumption. In this thesis, we present the first implementation of a complete SDR receiver based on RF bandpass Sigma-Delta including a Variable-Gain LNA (VGLNA), an RF subsampled Sigma-Delta ADC, an RF digital down-conversion mixer and a polyphase multi-stage multi-rate decimation filter. VGLNA enlarges the dynamic range of the multi-standard receiver to achieve the requirements of the three targeted wireless standards. Also a mixed architecture, using both Source-Coupled Logic (SCL) and CMOS circuits, is proposed to optimize the power consumption of the RF digital circuits. Moreover, we propose a multi-stage comb filter architecture with polyphase decomposition to reduce the power consumption. The receiver is measured for three different standards in the 2.4 GHz ISM-band. Measurement results show that the receiver achieves 79 dB, 73 dB and 63 dB of dynamic range for the Bluetooth, ZigBee and WiFi standards respectively. The complete receiver, implemented in 130 nm CMOS process, has a 300 MHz tunable central frequency and consumes 63 mW under 1.2 V supply. Compared to other SDR receivers, the proposed circuit consumes 30% less power, the DR is 21 dB higher, IIP3 is 6 dB higher and the overall Figure of Merit is 24 dB higher
Ben, Abdallah Riadh. "Machine virtuelle pour la radio logicielle." Lyon, INSA, 2010. http://theses.insa-lyon.fr/publication/2010ISAL0086/these.pdf.
Full textThe hardware architectures dedicated to software radio are complex to handle. Automatic transition from modeling to implementation has many benefits and represents important economic perspectives. However the proposed approaches for software radios modeling, found in the state of the art, are specific to particular execution platforms. Indeed, moving to implementation is generally done through compilation and code generation techniques. In all cases, the generated executable program is definitively targeted for a specific platform. In this thesis, we propose a virtual machine based programming model which can express different physical layer protocols independently of the target platform. To this model we defined an associated language compilable into a high level byte-code to be executed by the radio virtual machine (which itself is executed by either a classic native processor or dedicated hardware) for configuration and control of radio platforms. The radio virtual machine was first tested functionally on a software platform (PC). Then, it has been experimented on a realistic platform with real-time constraints consideration: the CEA-Leti MAGALI chip. To validate the concept, several transmit and receive services of existing physical layer standards have been implemented. The additional costs of the virtual machine and the programming model were studied. Quantitative experimental evaluations of these additional costs have been realized and optimization techniques have been proposed
Moy, Christophe. "Evolution de la conception radio : de la radio logicielle à la radio intelligente." Habilitation à diriger des recherches, Université Rennes 1, 2008. http://tel.archives-ouvertes.fr/tel-00354493.
Full textBadran, Tamer. "Balayage de spectre utilisant les récepteurs radio logicielle." Electronic Thesis or Diss., Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2020SORUS264.pdf.
Full textSpectrum sensing applications cover wide variety, such as efficient utilization of frequency spectrum, and in medical applications. The conventional architecture used by all the previous publications for spectrum sensing receiver is based on baseband ADC, hence it has high power consumption, higher complexity, and suffers from circuit mismatches and nonlinearity. In this work, we propose using an RF receiver based on bandpass delta-sigma ADC. It is much more convenient to have a tunable BP ΔΣ ADC to simplify the spectrum sweeping task. The previously reported tunable BP ΔΣ ADC’s are implementing tunability in a complex manner. We present an efficient implementation of tunable BP ΔΣ ADC with fixed ratio between the sampling frequency and center frequency. That fixed ratio further simplifies the implementation of the down conversion mixer and decimation filter which serve as the digital backend of the receiver. A spectrum sensing receiver, based on the power-efficient RF front end architecture proposed in this thesis, is also proposed. The proposed complete receiver does not suffer from I/Q imbalance that highly affect the spectrum sensing performance. Simulation results to show the circuit nonlinearity impact on the performance are presented. A circuit implementation of a digital backend of the proposed system is presented. This implementation comprises an efficient down conversion mixer, decimation filter, custom FFT block, and energy detection module. The implementation was validated on Altera FPGA using the on-chip logic analyzer via the SignalTab tool.Studies to show the impact of I/Q imbalance on spectrum sensing performance were previously published. Nevertheless, those publications presented only either analytical or simulation results. In this work, we present the first hardware measurement of the I/Q imbalance on spectrum sensing performance using a commercial SDR transceiver platform.In the medical field, we also present for the first time a study of the effect of RF-EMF exposure on neonates by performing a simultaneous acquisition of RF signals along with recording the physiological parameters of neonates. Using R-Studio, the stationarity of the signals to be correlated was checked, a transformation was performed on the non-stationary signals. Finally, cross correlation between the acquired RF signal (average of the whole spectrum or in a specific band) and each of the recorded physiological parameters did not show an observable impact of RF-EMF exposure on neonates
Tchidjo, Moyo Noël. "Architecture logicielle et méthodologie de conception embarquée sous contraintes temps réel pour la radio logicielle." Phd thesis, Université Rennes 1, 2011. http://tel.archives-ouvertes.fr/tel-00603708.
Full textTchidjo, Moyo Noël Bertrand. "Architecture logicielle et méthodologie de conception embarquée sous contraintes temps réel pour la radio logicielle." Rennes 1, 2011. https://tel.archives-ouvertes.fr/tel-00603708.
Full textThis study addresses the problem of real-time scheduling of software components executing in a digital signal processor in a software radio context. It aims at providing new tooling for software radio design. Real-time scheduling analysis of flexible signal processing applications executing in a processor is currently done manually, using ad hoc methods, and taking significant margins. Given the foreseen increase of software components of the physical layer executing simultaneously on a processor in future software radios, these methods for scheduling analysis will be error-prone, time consuming and will often fail to find a feasible schedule even when one exists. For that purpose, this thesis defines a new task model which represents more precisely the behaviour of the tasks in certain software radio context: the non-cylic GMF (Generalized Multi-Frame) model. For this model, we present a formula to compute response time of tasks, as well as a new sufficient feasibility test for tasks executing in a processor according to the “Earliest Deadline First” scheduling policy. We also provide for this task model an efficient algorithm, for exact feasibility determination. We present in this thesis a new MDE (Model Driven Engineering) design methodology, to specify the parameters which make possible a real-time scheduling analysis of software components executing in a processor. This thesis proposes methods to compute real-time constraints in a software radio. It presents the elements of the MARTE standard to be used, to note the constraints in the model as well as model transformation rules to obtain a suitable model for real-time scheduling analysis. This thesis presents an approach, implemented as a simulation tool, to realize real-time scheduling analysis of tasks implementing flexible signal processing algorithms in a processor and scheduled according to a hybrid scheduling policy. This tool is integrated into the proposed MDE design methodology
Cassagne, Adrien. "Méthodes d’optimisation et de parallélisation pour la radio logicielle." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0231.
Full textA software-defined radio is a radio communication system where components traditionally implemented in hardware are instead implemented by means of software. With the growing number of complex digital communication standards and the general purpose processors increasing power, it becomes interesting to trade the energy efficiency of the dedicated architectures for the flexibility and the reduced time to market on general purpose processors.Even if the resulting implementation of a signal processing is made on an application-specific integrated circuit, the software version of this processing is necessary to evaluate and verify the correct properties of the functionality. This is generally the role of the simulation. Simulations are often expensive in terms of computational time. To evaluate the global performance of a communication system can require from few days to few weeks.In this context, this thesis proposes to study the most time consuming algorithms in today's digital communication chains. These algorithms often are the channel decoders located on the receivers. The role of the channel coding is to improve the error resilience of the system. Indeed, errors can occur at the channel level during the transmission between the transmitter and the receiver. Three main channel coding families are then presented: the LDPC codes, the polar codes and the turbo codes. These three code families are used in most of the current digital communication standards like the Wi-Fi, the Ethernet, the 3G, 4G and 5G mobile networks, the digital television, etc. The resulting decoders offer the best compromise between error resistance and decoding speed known to date. Each of these families comes with specific decoding algorithms. One of the main challenge of this thesis is to propose optimized software implementations for each of them. Specific efficient implementations are proposed as well as more general optimization strategies. The idea is to extract the generic optimization strategies from a representative subset of decoders.The last part of the thesis focuses on the implementation of a complete digital communication system in software. Thanks to the efficient decoding implementations proposed before, a full transceiver, compatible with the DVB-S2 standard, is implemented. This standard is typically used for broadcasting multimedia contents via satellite. To this purpose, an embedded domain specific language targeting the software-defined radio is introduced. The main objective of this language is to take advantage of the parallel architecture of the current general purpose processors. The results show that the system achieves sufficient throughputs to be deployed in real-world conditions.These contributions have been made in a dynamic of openness, sharing and reusability, it results in an open source library named AFF3CT for A Fast Forward Error Correction Toolbox. Thus, all the results proposed in this thesis can easily be reproduced and extended. This philosophy is detailed in a specific chapter of the thesis manuscript
Delahaye, Jean-Philippe. "Plate-forme hétérogène reconfigurable : application à la radio logicielle." Rennes 1, 2007. http://www.theses.fr/2007REN1S181.
Full textThe Software Defined Radio (SDR) techniques aim at offering an access to a broad choice of radio communications standards on a flexible hardware (HW) architecture which is necessary in order to answer the diversity of the processing to carry out. The digital communications techniques involve heterogeneous resources needs. The reconfigurability of a heterogeneous HW platform is thus a key features to a successful appearance of SDR systems. The reconfigurability of a SDR system must meet the needs for adaptation of the processing functions to answer the requirements of the contexts switching. Our work is based on the analysis of the baseband processing in the transmitting chains of the 3 standards UMTS, GSM and 802. 11g. We propose an analysis of factorization of the multistandard baseband processing in order to reduce the number of contexts to be managed and we determine the needs for flexibility of SDR applications. In this context, the configuration management of HW platforms clearly appears as the key feature of a SDR system. We propose a Hierarchical and Distributed Configuration Management (“HDCM”) approach in order to meet the needs of managing various types of flexibility of dataflow oriented applications mapped on heterogeneous HW. The implementation of applications on reconfigurable heterogeneous platforms and in particular on configurable logic devices, requires the uses of new design methodologies in order to extract the potential reconfigurability of these reconfigurables devices. We bring in this work various design methodologies that aim at designing partially and dynamically reconfigurable systems on chip and on FPGA
Muller, Jonathan. "Emetteur à 60 GHz avec des possibilités radio logicielle." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10100/document.
Full textRecent deep sub-micron CMOS technologies have allowed the development of digital baseband circuits for wireless communications. 60 GHz radio has emerged as one of the most promising candidates for high-data-rate (10 Gb/sec), short-distance (1 to 10 m), wireless telecommunication systems. State-of-the-art 60 GHz radio use exclusively analog transceivers. Recent deep sub-micron CMOS technologies have allowed the development of highly digital transceivers for wireless communications in the lower GHz range. In this work, a digital transmitter architecture targeted at 60GHz c communications has been studied. It is based on the combination of an interpolator and a DRFC (digital-to-RF converter), structure which combines a DAC and mixer in order to realize a direct conversion of the digital data stream to the RF frequency. The 60 GHz wireless standard IEEE 802.15.3c has been taken as a reference to study the proposed transmitter. The digital data stream at the baseband output (sampled at 2.5 GS/s) needs to be oversampled and resulting replicas of the signal at multiples of the initial sampling frequency have to be filtered. Images at multiples of the initial sampling frequency are attenuated with an interpolator FIR filter working at 10 GS/s. A prototype of the 10GS/s interpolator has been implemented in a 65nm CMOS technology to prove the feasibility of the concept. The filter uses powers of two coefficients and dynamic logic to reach the required sampling rate. The fabricated prototype transmitter IC demonstrates full functionality up to a 9.6 GHz and consumes 408mA (571mW) with a 1.4V supply voltage. The core area is 650 x 170 um2
Books on the topic "Radio-logicielle"
Alan, Fette Bruce, ed. Cognitive radio technology. 2nd ed. Amsterdam: Academic Press/Elsevier, 2009.
Find full text1966-, Xiao Yang, and Hu Fei 1972-, eds. Cognitive radio networks. Boca Raton, FL: Auerbach Publications, 2008.
Find full textFette, Bruce A. Cognitive Radio Technology. Elsevier Science & Technology Books, 2009.
Find full textYang, Xiao, and Fei Hu. Cognitive Radio Networks. Auerbach Publishers, Incorporated, 2008.
Find full text