8 research outputs found
SODALITE: SDN wireless backhauling for dense 4G/5G Small Cell networks
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Dense deployments of Small Cells are key to fulfill the capacity requirements of future 5G networks. However, two roadblocks to the adoption of Small Cells are i) the limited availability and the cost of sites with wired backhaul resources, and ii) the complexity to manage a dense deployment of wireless backhaul nodes. Towards these challenges we propose SODALITE, a novel system that applies Software Defined Networking (SDN) to a wireless backhaul network. We present how SODALITE can be integrated to 3GPP’s 4G and 5G architectures, and show the feasibility of SODALITE through LTE network testbed experiments. We substantiate the scalability of SODALITE through stochastic studies using real-life traffic traces from an LTE network and discuss the effects of cell densification and 5G system architecture on these studies. Further, a reliable backhauling solution for wireless links is introduced in SODALITE through SDN-enabled mechanisms that are capable of reconfiguring the data plane upon a link failure detection. Its reliability is shown through experiments on a LTE network testbed, and studied thoroughly via rigorous simulations and network emulator evaluations. As a result, we claim that SODALITE is a promising carrier-grade system to manage a wireless Small Cell backhaul.Postprint (author's final draft
Teseus project
Treball desenvolupat dins el marc del programa 'European Project Semester'.This project, TESEUS, is being carried out within the umbrella of the ongoing Urban Node study and focuses
on the development of a computational system capable of handling a huge amount of data received from
urban nodes in a smart city.
There are already existing computer systems with computational power capable of handling the amount of
data a smart city requires. Although these computers may provide all the power required to maintain and
manage a smart city, they can always be made more efficient. The lack of efficiency comes from the
inability to perform in a scalable way. A computer is not always required to work with its full power. The
way supercomputers are designed is rather inefficient when managing lesser amounts of data than
expected. The Teseus project objective is the possibility of building a low cost, scalable data server with
focus on efficiency and the facilities a scalable system offers. In order to create a new computational
system, research and possibilities for both hardware and software that offers scalability and its
management have been carried out and explored.
Given the extent of the development, as well as the complexity of the project that involves combining
existing technology hardware with available software solutions, leaves further programming and research
for future groups.
In addition, this report includes a Business Model Canvas and Eco Design considerations regarding the
future plans and environmental aspects for Teseus. The methodology used as a project management tool in
order to organize the project and description of the Urban Node projects relation to Teseus, is also
included
ARVA: Aparell de Recerca de VĂctimes per a Allaus
Aquest Treball Final de Grau tracta de la creaciĂł d’un Aparell de Recerca de VĂctimes d’Allaus (en sigles, ARVA o tambĂ© anomenat DVA). Sent un equip multidisciplinari de 7 membres (3 del grau de Disseny, 3 del grau d’Enginyeria InformĂ tica i una persona d’Enginyeria MecĂ nica) i seguint metodologies Agile, (metodologia que es basa en la iteraciĂł contĂnua del producte o codi tenint en compte unes necessitats que van canviant al llarg del temps) l’à nim d’aquest producte Ă©s la ideaciĂł d’un dispositiu DVA en tots els seus apartats (disseny estructural, distribuciĂł d’elements, electrònica i informĂ tica) vetllant que aquest dispositiu compleixi amb les normatives actuals i presenti un avanç (tant funcional com tecnològic) en la categoria dels aparells ARVA.
Inicialment, l’objectiu Ă©s crear i dissenyar la carcassa i les caracterĂstiques fĂsiques d’un DVA (tenint en compte la normativa pertinent) aixĂ com la distribuciĂł dels seus elements interns sota criteris d’usabilitat i estètica (entre altres). Paral·lelament desenvolupar un prototip fĂsic amb components funcionals i implementar un codi que els permeti realitzar les mateixes funcions que realitza un ARVA comercial.
AixĂ doncs, segons el plantejament Scrum, (conjunt de bones prĂ ctiques de treball en equip) el producte s’ha anat incrementant mitjançant Sprints (perĂodes curts de desenvolupament). Alhora, l’equip de desenvolupament ha anat seguint les directrius d’un client, Eloi MartĂnez, director general de l’empresa Atmosferia. qui ha anat seguint el projecte des de l’inici i ha anat donant les seves idees, recomanacions i directrius respecte a les caracterĂstiques o el disseny del producte, simulant el cas d’una empresa real.
Per tant, a data de presentaciĂł, l’equip ha realitzat dos prototips funcionals a escala ampliada, usant el disseny creat i aplicant el codi desenvolupat usant com a processador un Arduino, que compleixen amb els requeriments demanats per el client i els tutors, aixĂ com el desenvolupament i el disseny d’una aplicaciĂł per a Android (i la seva interfĂcie) que es comunica amb els prototips. A mĂ©s, s’ha creat dos prototips mĂ©s (impresos en 3D) de les carcasses a escala 1:1 per a mostrar l’aspecte del aparell el mĂ©s semblant possible a la realitat.
La conclusió final es que tot i les dificultats que s’han trobat al llarg del projecte, s’ha presentat una solució funcional, clara i que resol la major part de les incògnites presentades tant per el client com per l’equip de desenvolupament, i que presenta les innovacions que es volien implementar, a nivell tant de disseny com de hardware i software. A més, s’ha dissenyat de manera teòrica un arnés al qual aniria enganxat el DVA. Respecte a la metodologia à gil, cal dir que és realment útil per a projectes interdisciplinaris en equip, sempre que es segueixi amb meticulositat, grà cies al seu funcionament de treball en equip
Teseus project
Treball desenvolupat dins el marc del programa 'European Project Semester'.This project, TESEUS, is being carried out within the umbrella of the ongoing Urban Node study and focuses
on the development of a computational system capable of handling a huge amount of data received from
urban nodes in a smart city.
There are already existing computer systems with computational power capable of handling the amount of
data a smart city requires. Although these computers may provide all the power required to maintain and
manage a smart city, they can always be made more efficient. The lack of efficiency comes from the
inability to perform in a scalable way. A computer is not always required to work with its full power. The
way supercomputers are designed is rather inefficient when managing lesser amounts of data than
expected. The Teseus project objective is the possibility of building a low cost, scalable data server with
focus on efficiency and the facilities a scalable system offers. In order to create a new computational
system, research and possibilities for both hardware and software that offers scalability and its
management have been carried out and explored.
Given the extent of the development, as well as the complexity of the project that involves combining
existing technology hardware with available software solutions, leaves further programming and research
for future groups.
In addition, this report includes a Business Model Canvas and Eco Design considerations regarding the
future plans and environmental aspects for Teseus. The methodology used as a project management tool in
order to organize the project and description of the Urban Node projects relation to Teseus, is also
included
Teseus project
Treball desenvolupat dins el marc del programa 'European Project Semester'.This project, TESEUS, is being carried out within the umbrella of the ongoing Urban Node study and focuses
on the development of a computational system capable of handling a huge amount of data received from
urban nodes in a smart city.
There are already existing computer systems with computational power capable of handling the amount of
data a smart city requires. Although these computers may provide all the power required to maintain and
manage a smart city, they can always be made more efficient. The lack of efficiency comes from the
inability to perform in a scalable way. A computer is not always required to work with its full power. The
way supercomputers are designed is rather inefficient when managing lesser amounts of data than
expected. The Teseus project objective is the possibility of building a low cost, scalable data server with
focus on efficiency and the facilities a scalable system offers. In order to create a new computational
system, research and possibilities for both hardware and software that offers scalability and its
management have been carried out and explored.
Given the extent of the development, as well as the complexity of the project that involves combining
existing technology hardware with available software solutions, leaves further programming and research
for future groups.
In addition, this report includes a Business Model Canvas and Eco Design considerations regarding the
future plans and environmental aspects for Teseus. The methodology used as a project management tool in
order to organize the project and description of the Urban Node projects relation to Teseus, is also
included
ARVA: Aparell de Recerca de VĂctimes per a Allaus
Aquest Treball Final de Grau tracta de la creaciĂł d’un Aparell de Recerca de VĂctimes d’Allaus (en sigles, ARVA o tambĂ© anomenat DVA). Sent un equip multidisciplinari de 7 membres (3 del grau de Disseny, 3 del grau d’Enginyeria InformĂ tica i una persona d’Enginyeria MecĂ nica) i seguint metodologies Agile, (metodologia que es basa en la iteraciĂł contĂnua del producte o codi tenint en compte unes necessitats que van canviant al llarg del temps) l’à nim d’aquest producte Ă©s la ideaciĂł d’un dispositiu DVA en tots els seus apartats (disseny estructural, distribuciĂł d’elements, electrònica i informĂ tica) vetllant que aquest dispositiu compleixi amb les normatives actuals i presenti un avanç (tant funcional com tecnològic) en la categoria dels aparells ARVA.
Inicialment, l’objectiu Ă©s crear i dissenyar la carcassa i les caracterĂstiques fĂsiques d’un DVA (tenint en compte la normativa pertinent) aixĂ com la distribuciĂł dels seus elements interns sota criteris d’usabilitat i estètica (entre altres). Paral·lelament desenvolupar un prototip fĂsic amb components funcionals i implementar un codi que els permeti realitzar les mateixes funcions que realitza un ARVA comercial.
AixĂ doncs, segons el plantejament Scrum, (conjunt de bones prĂ ctiques de treball en equip) el producte s’ha anat incrementant mitjançant Sprints (perĂodes curts de desenvolupament). Alhora, l’equip de desenvolupament ha anat seguint les directrius d’un client, Eloi MartĂnez, director general de l’empresa Atmosferia. qui ha anat seguint el projecte des de l’inici i ha anat donant les seves idees, recomanacions i directrius respecte a les caracterĂstiques o el disseny del producte, simulant el cas d’una empresa real.
Per tant, a data de presentaciĂł, l’equip ha realitzat dos prototips funcionals a escala ampliada, usant el disseny creat i aplicant el codi desenvolupat usant com a processador un Arduino, que compleixen amb els requeriments demanats per el client i els tutors, aixĂ com el desenvolupament i el disseny d’una aplicaciĂł per a Android (i la seva interfĂcie) que es comunica amb els prototips. A mĂ©s, s’ha creat dos prototips mĂ©s (impresos en 3D) de les carcasses a escala 1:1 per a mostrar l’aspecte del aparell el mĂ©s semblant possible a la realitat.
La conclusió final es que tot i les dificultats que s’han trobat al llarg del projecte, s’ha presentat una solució funcional, clara i que resol la major part de les incògnites presentades tant per el client com per l’equip de desenvolupament, i que presenta les innovacions que es volien implementar, a nivell tant de disseny com de hardware i software. A més, s’ha dissenyat de manera teòrica un arnés al qual aniria enganxat el DVA. Respecte a la metodologia à gil, cal dir que és realment útil per a projectes interdisciplinaris en equip, sempre que es segueixi amb meticulositat, grà cies al seu funcionament de treball en equip