Anna Maria Vegni | Roma Tre University, Rome, Italy (original) (raw)
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Papers by Anna Maria Vegni
Proceedings of the 3rd Workshop on Experiences with the Design and Implementation of Smart Objects - SMARTOBJECTS '17, 2017
The coexistence of radio frequency (RF) and visible light communications (VLC) in typical indoor ... more The coexistence of radio frequency (RF) and visible light communications (VLC) in typical indoor environments can be leveraged to support vast user quality-of-service (QoS) needs. In this paper, we target a hybrid RF/VLC network in which data transmission is provided via either an RF access point or a VLC luminary based on a selection process. We employ the concept of effective capacity, which defines the maximum constant arrival data rate at the transmitter buffer when the QoS needs are imposed as limits on the buffer overflow and delay violation probabilities, as the main selection criteria. We initially formulate the effective capacity of both channels with respect to channel gains and user distribution. Under the assumption of uniform user distribution within the VLC cell, we then provide a closed-form approximation for the effective capacity of the VLC channel. We further investigate the effects of illumination needs and line-of-sight blockage on the VLC performance. In additio...
IEEE Communications Standards Magazine, 2021
ITU Journal on Future and Evolving Technologies, 2021
With the advancement of nanotechnology, there has been fervid research activity on new communicat... more With the advancement of nanotechnology, there has been fervid research activity on new communication paradigms suitable for new challenging contexts, such as biological systems. Among different approaches, the most considered has been artificial Molecular Communication, where entities such as synthetic molecules, enzymes, hormones, bacteria etc. are functionalized in order to implement information exchange with the surrounding system and with other entities. In this context, it is interesting to analyze specific features that could be exploited for effective communication paradigms. In this paper, we focus on chiral molecules (a.k.a. enantiomers) as novel enablers for a molecular communication paradigm. Chirality is an interesting and appealing feature existing in nature and that can be replicated with strong emphasis in new types of materials, such as metasurfaces and metamaterials. A deep knowledge of chirality features and how chiral molecules interact with each other or with ach...
2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC), 2019
2017 International Conference on Computing, Networking and Communications (ICNC), 2017
L'Internet des Objets (IdO) a obtenu un grand succes dans divers domaines d'application. ... more L'Internet des Objets (IdO) a obtenu un grand succes dans divers domaines d'application. Toutefois, malgre ce succes, l'un des plus grands defis a relever est la grande quantite de donnees generees par les dispositifs de capteur. Cela peut affecter la consommation d'energie et causer la congestion du reseau. Pour resoudre ce probleme, nous proposons dans cet article une Approche d'Inference Bayesienne (AIB) permettant d'eviter la transmission des donnees fortement correlees. AIB est base sur une architecture hierarchique composee de simple capteurs, de passerelles intelligentes et de centre de donnees. L'Algorithme Belief Propagation est utilise pour reconstituer les donnees manquantes. La solution proposee est evalue sur la base des donnees recueillies sur des capteurs reels. Sur les divers scenarios etudies, les resultats montrent que notre approche reduit considerablement le nombre de donnees transmises et la consommation d'energie tout en maintena...
This paper assesses the performance of a localization technique for underwater visible light netw... more This paper assesses the performance of a localization technique for underwater visible light networks. The proposed approach is based on a fingerprinting technique, collecting the channel impulse responses from different wireless optical signals in the visible range. A local database related to the power level distribution within a maritime environment is built and exploited to estimate user position, e.g., a diver moving in a given space for underwater fish monitoring. In this paper, we investigate on the noise effect on the localization accuracy in underwater scenarios and for different water turbidity coefficient and we demonstrate that the estimation error suffers on variable channel impulse responses. Different configuration parameters and environmental scenarios have been considered, showing that the LED transmitter deployment can be effective in the localization estimation. A comparison of the proposed localization approach to the traditional triangulation method has been fin...
2018 IEEE International Conference on Sensing, Communication and Networking (SECON Workshops), 2018
2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021
ITU Journal on Future and Evolving Technologies, 2020
In this work, a new paradigm for vehicular communications based on Reconfigurable Intelligent Met... more In this work, a new paradigm for vehicular communications based on Reconfigurable Intelligent Meta-surfaces (RIMs) is presented. By using the proposed RIM, we are able to manipulate electromagnetic waves in the half-space, since the element is reflective. The unit cell consists of a U-shaped designed microstrip structure equipped with a pin diode and via a hole. In this study, two different reflection modes are achieved for 1-bit data transferring in each state. By incorporating these two different configurations together, the reflected phases in the proposed RIM surface can be controlled respectively in 0 and 180. The proposed unit cell can provide a usable double negative functional characteristic around 5.3 GHz. The main goal of this paper is the use of a multifunctional behavior RIM for vehicular communications to code the transmitted wave. A novel phase distribution diagram is generated to propagate in each angle. Moreover, two major electromagnetic modulation functions, beam f...
IEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2019
Journal of Lightwave Technology, 2017
Nano Communication Networks, 2016
Proceedings of the 10th EAI International Conference on Body Area Networks, 2015
Proceedings of the 3rd Workshop on Experiences with the Design and Implementation of Smart Objects - SMARTOBJECTS '17, 2017
The coexistence of radio frequency (RF) and visible light communications (VLC) in typical indoor ... more The coexistence of radio frequency (RF) and visible light communications (VLC) in typical indoor environments can be leveraged to support vast user quality-of-service (QoS) needs. In this paper, we target a hybrid RF/VLC network in which data transmission is provided via either an RF access point or a VLC luminary based on a selection process. We employ the concept of effective capacity, which defines the maximum constant arrival data rate at the transmitter buffer when the QoS needs are imposed as limits on the buffer overflow and delay violation probabilities, as the main selection criteria. We initially formulate the effective capacity of both channels with respect to channel gains and user distribution. Under the assumption of uniform user distribution within the VLC cell, we then provide a closed-form approximation for the effective capacity of the VLC channel. We further investigate the effects of illumination needs and line-of-sight blockage on the VLC performance. In additio...
IEEE Communications Standards Magazine, 2021
ITU Journal on Future and Evolving Technologies, 2021
With the advancement of nanotechnology, there has been fervid research activity on new communicat... more With the advancement of nanotechnology, there has been fervid research activity on new communication paradigms suitable for new challenging contexts, such as biological systems. Among different approaches, the most considered has been artificial Molecular Communication, where entities such as synthetic molecules, enzymes, hormones, bacteria etc. are functionalized in order to implement information exchange with the surrounding system and with other entities. In this context, it is interesting to analyze specific features that could be exploited for effective communication paradigms. In this paper, we focus on chiral molecules (a.k.a. enantiomers) as novel enablers for a molecular communication paradigm. Chirality is an interesting and appealing feature existing in nature and that can be replicated with strong emphasis in new types of materials, such as metasurfaces and metamaterials. A deep knowledge of chirality features and how chiral molecules interact with each other or with ach...
2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC), 2019
2017 International Conference on Computing, Networking and Communications (ICNC), 2017
L'Internet des Objets (IdO) a obtenu un grand succes dans divers domaines d'application. ... more L'Internet des Objets (IdO) a obtenu un grand succes dans divers domaines d'application. Toutefois, malgre ce succes, l'un des plus grands defis a relever est la grande quantite de donnees generees par les dispositifs de capteur. Cela peut affecter la consommation d'energie et causer la congestion du reseau. Pour resoudre ce probleme, nous proposons dans cet article une Approche d'Inference Bayesienne (AIB) permettant d'eviter la transmission des donnees fortement correlees. AIB est base sur une architecture hierarchique composee de simple capteurs, de passerelles intelligentes et de centre de donnees. L'Algorithme Belief Propagation est utilise pour reconstituer les donnees manquantes. La solution proposee est evalue sur la base des donnees recueillies sur des capteurs reels. Sur les divers scenarios etudies, les resultats montrent que notre approche reduit considerablement le nombre de donnees transmises et la consommation d'energie tout en maintena...
This paper assesses the performance of a localization technique for underwater visible light netw... more This paper assesses the performance of a localization technique for underwater visible light networks. The proposed approach is based on a fingerprinting technique, collecting the channel impulse responses from different wireless optical signals in the visible range. A local database related to the power level distribution within a maritime environment is built and exploited to estimate user position, e.g., a diver moving in a given space for underwater fish monitoring. In this paper, we investigate on the noise effect on the localization accuracy in underwater scenarios and for different water turbidity coefficient and we demonstrate that the estimation error suffers on variable channel impulse responses. Different configuration parameters and environmental scenarios have been considered, showing that the LED transmitter deployment can be effective in the localization estimation. A comparison of the proposed localization approach to the traditional triangulation method has been fin...
2018 IEEE International Conference on Sensing, Communication and Networking (SECON Workshops), 2018
2021 17th International Symposium on Wireless Communication Systems (ISWCS), 2021
ITU Journal on Future and Evolving Technologies, 2020
In this work, a new paradigm for vehicular communications based on Reconfigurable Intelligent Met... more In this work, a new paradigm for vehicular communications based on Reconfigurable Intelligent Meta-surfaces (RIMs) is presented. By using the proposed RIM, we are able to manipulate electromagnetic waves in the half-space, since the element is reflective. The unit cell consists of a U-shaped designed microstrip structure equipped with a pin diode and via a hole. In this study, two different reflection modes are achieved for 1-bit data transferring in each state. By incorporating these two different configurations together, the reflected phases in the proposed RIM surface can be controlled respectively in 0 and 180. The proposed unit cell can provide a usable double negative functional characteristic around 5.3 GHz. The main goal of this paper is the use of a multifunctional behavior RIM for vehicular communications to code the transmitted wave. A novel phase distribution diagram is generated to propagate in each angle. Moreover, two major electromagnetic modulation functions, beam f...
IEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2019
Journal of Lightwave Technology, 2017
Nano Communication Networks, 2016
Proceedings of the 10th EAI International Conference on Body Area Networks, 2015
Recent Advances in Wireless Communications and Networks, 2011