Claire Goursaud

Institut National des Sciences Appliquées de Lyon

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Jean-Marie Gorce

Institut National des Sciences Appliquées de Lyon

Anne Julien‐Vergonjanne

XLIM

Christelle Aupetit‐Berthelemot

Université de Limoges

Anya Apavatjrut

Bridge University

Jean-Michel Dumas

XLIM

Katia Jaffrès‐Runser

Université Toulouse-I-Capitole

Paul Ferrand

Huawei Technologies (France)

Arturo Guizar

CEA Grenoble

Yuqi Mo

Citigroup

Jean‐Pierre Cances

Université de Limoges

Cooperative Institutions

Institut National des Sciences Appliquées de Lyon

Université Claude Bernard Lyon 1

Centre National de la Recherche Scientifique

Citigroup

Institut national de recherche en informatique et en automatique

Université Grenoble Alpes

Université de Limoges

Laboratoire d’Informatique et Systèmes

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Orange (France)

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Random unslotted time-frequency ALOHA: Theory and application to IoT UNB networks

Claire Goursaud Yuqi Mo

The ALOHA protocol is regaining interest in the context of the Internet of Things (IoT), especially for Ultra Narrow Band (UNB) signals. In this case, the classical assumption of channelization is not verified anymore, modifying the ALOHA performances. Indeed, UNB signals suffer from a lack of precision on the actual transmission carrier frequency, leading to a behavior similar to a frequency unslotted random access. In this paper, the success probability and throughput of ALOHA is generalized to further describe frequency-unslotted systems such as UNB. The main contribution of this paper is the derivation of a generalized expression of the throughput for the random time-frequency ALOHA systems. Besides, this study permits to highlight the duality of ALOHA in time and frequency domain.

Aloha

10.1109/ict.2016.7500489

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Citations (41)

Récepteur Wake-up radio basé sur des réseaux de neurones à impulsions pour la détection de séquence

Guillaume Marthe Claire Goursaud Laurent Clavier

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A Performance Comparison of Classical and Quantum Algorithm for Active User Detection

2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC) (2022)

Muhammad Idham Habibie Jihad Hamie Claire Goursaud

The strong growth in the number of connected mobile devices has imposed new challenges in efficiently exploiting the available networks resources. Code Domain Non-Orthogonal Multiple Access (NOMA) technique appears as a tremendous efficient solution. Each device uses its assigned code to simultaneously transmit its data along with the user identifier, without any resource reservation exchange, saving precious wireless resources. However, this requires a receiver capable of blindly detecting the active users, which is highly complex. Driven by the promising superposition property of quantum architecture, the goal of this paper is to adapt and apply the quantum Grover algorithm for Active User Detection (AUD) purpose in the context of NOMA, to alleviate the search complexity. This adapted Grover's algorithm is compared with the optimal classical Maximum Likelihood (ML) AUD receivers, as well as with the basic classical Conventional Correlation Receiver (CCR). A benchmark on the probability of AUD is assessed as a function of the Signal to Noise Ratio (SNR) of the received signal. We show that our adapted Grover's algorithm is very promising in high SNR regime.

Benchmark (surveying)

Code (set theory)

10.1109/spawc51304.2022.9833942

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Uplink Multiple Base Stations Diversity for UNB based IoT networks

Yuqi Mo Claire Goursaud Jean-Marie Gorce

Ultra-Narrow-Band has been a promising candidate for low-power long-distance transmissions in the context of IoT. Its radio access is random at time and frequency, and can degrade the network performance. We propose to apply signal combining and interference cancellation technologies across multiple base stations in UNB networks, in order to take advantage of their spatial diversity. We evaluate and compare the performance enhancement of each technology, compared to single BS case. These technologies exploiting multi-BS diversity are proved to be significantly beneficial in improving UNB networks' scalability. We can gain until 28 times better performance with one iteration global SIC. We highlight that these results provide us a choice among the technologies according to the improvement needs and the implementation complexity.

Antenna diversity

Performance Improvement

10.1109/cama.2018.8530530

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Low complexity Detector for massive uplink random access with NOMA in IoT LPWA networks

Diane Duchemin Jean-Marie Gorce Claire Goursaud

We focus on the random uplink transmissions of an unknown subset of nodes, disseminated in a cell. Under the constraints of massive Machine Type Communication (MTC) in cellular Low Power Wide Area Networks (LPWAN) and Ultra Reliable Low Latency Communications (URLLC), we assume a low coordination with the receiver and the usage of Gaussian coded Non Orthogonal Multiple Access (NOMA). We then target direct data transmission and thus propose a low complexity optimal-based detection of the active users: the It- MAP. This algorithm relies on the Maximum A Posteriori (MAP) detector and, similarly to Orthogonal Matching Pursuit (OMP)- like algorithms, proceeds by iteration to decrease its intrinsic complexity. We also show the gain of employing It-MAP rather than an OMP-based detection and the advantage of exploiting the possibility to tune the algorithm, in order to avoid either Missed Detection or False Alarm, depending on the wished trade-off between the reliability, the latency and the resource usage of the full transmission.

noma

Random access

LPWAN

Stochastic geometry

10.1109/wcncw.2019.8902806

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Enhancement optimized MAC protocol for medical applications

Boufedah Badissi Azzouz Mohamed Benmohamed Abdesselam Babouri Claire Goursaud Florin Huţu

Growth of elderly population induces the increasing demands for high-quality healthcare services, wireless body area networks (WBANs) has emerged as a promising solution for monitoring of patients vital life signs parameters. Reliability and extending the lifetime are considered amongst the important and challenging issues in WBANs. The standard IEEE 802.15.4 is considered as the most used MAC protocol for medical sensor body area networks, owing to its low-power, low data rate and low-cost features. In this paper, we propose an enhancement optimized MAC protocol based on IEEE 802.15.4 dubbed EOMAC. The proposed protocol aims to enhance the reliability and to prolong the lifetime of the network, by reducing energy consumption.

Body area network

10.1109/ntic.2015.7368743

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Deriving Pareto-optimal performance bounds for 1 and 2-relay wireless networks

arXiv (Cornell University) (2012)

Qi Wang Katia Jaffrès‐Runser Claire Goursaud Jean-Marie Gorce

This work addresses the problem of deriving fundamental trade-off bounds for a 1-relay and a 2-relay wireless network when multiple performance criteria are of interest. It proposes a simple MultiObjective (MO) performance evaluation framework composed of a broadcast and interference-limited network model; capacity, delay and energy performance metrics and an associated MO optimization problem. Pareto optimal performance bounds between end-to-end delay and energy for a capacity-achieving network are given for 1-relay and 2-relay topologies and assessed through simulations. Moreover, we also show in this paper that these bounds are tight since they can be reached by simple practical coding strategies performed by the source and the relays. Two different types of network coding strategies are investigated. Practical performance bounds for both strategies are compared to the theoretical upper bound. Results confirm that the proposed upper bound on delay and energy performance is tight and can be reached with the proposed combined source and network coding strategies.

Pareto optimal

10.48550/arxiv.1211.3250

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Impact du nombre de répliques sur les performances d'un réseau IoT basé sur des transmissions Ultra Narrow Band

HAL (Le Centre pour la Communication Scientifique Directe) (2016)

Yuqi Mo Minh-Tien Do Claire Goursaud Jean-Marie Gorce

Random-FTMA est le protocole d'acces au canal le plus naturel pour un reseau base sur la technologie Ultra Narrow Band (UNB). L'acces est realise aleatoirement en temps mais aussi en frequence. Ce caractere aleatoire conduit a des transmissions de paquets sur les memes ressources. Ces collisions sont un facteur limitant des performances du systeme. Par consequent , nous proposons dans ce papier l'utilisation d'un mecanisme de replication , afin d'augmenter la fiabilite du reseau. Nous evaluons theoriquement la probabilite de coupure du reseau. Nous en deduisons le nombre minimal de repliques permettant de garantir un taux de succes demande en fonction des parametres du reseau

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Fundamental limits of wireless ad hoc networks: lower MO bounds

HAL (Le Centre pour la Communication Scientifique Directe) (2012)

Qi Wang Claire Goursaud Katia Jaffrès‐Runser Jean-Marie Gorce

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Approximations asymptotiques du taux d'erreur paquet et allocation de puissance dans les canaux à relais sous évanouissements lents

HAL (Le Centre pour la Communication Scientifique Directe) (2013)

Paul Ferrand Jean-Marie Gorce Claire Goursaud

Dans cette communication, nous derivons une approximation du taux d'erreur paquet dans les canaux a evanouissements quasi-statiques, ou le temps de coherence du canal est de l'ordre du temps d'emission d'un paquet. Pour differentes hypotheses quant aux modulations considerees et au modele d'evanouissement du canal, nous obtenue une expression analytique bornant le gain de codage asymptotique du taux d'erreur paquet. Nous etendons ensuite cette etude aux canaux a relais en considerant plusieurs modeles de relayage, pour lesquels nous derivons l'approximation asymptotique du taux d'erreur paquet de bout-en-bout. A l'aide de cette approximation, nous sommes en mesure de fournir une allocation de puissance optimale pour les differents modeles de canaux a relais, et nous montrons que cette allocation fournit un gain en performance sur toute la plage de rapport signal-sur-bruit.

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