NET (Session 2) – Novel 6G architectures

Thursday, 9 June 2022, 16:00-17:30, Room A305

Session Chair: Panagiotis Demestichas (University of Piraeus, Greece), Artur Hecker (Huawei, Germany)

Cost-Efficient and QoS-Aware User Association and 3D Placement of 6G Aerial Mobile Access Points

Esteban Catté (CEA-Leti, France); Mohamed Sana (CEA LETI Grenoble & University of Grenoble Alpes, France); Mickael Maman (CEA-Leti Minatec Campus, France)
6G networks require a flexible infrastructure to dynamically provide ubiquitous network coverage. Mobile Access Points (MAP) deployment is a promising solution. In this paper, we formulate the joint 3D MAP deployment and user association problem over a dynamic network under interference and mobility constraints. First, we propose an iterative algorithm to optimize the deployment of MAPs. Our solution efficiently and quickly determines the number, position and configuration of MAPs for highly dynamic scenarios. MAPs provide appropriate Quality of Service (QoS) connectivity to mobile ground user in mm-wave or sub-6GHz bands and find their optimal positions in a 3D grid. Each MAP also implies an energy cost (e.g. for travel) to be minimized. Once all MAPs deployed, a deep multi-agent reinforcement learning algorithm is proposed to associate multiple users to multiple MAPs under interference constraint. Each user acts as an independent agent that operates in a fully distributed architecture and maximizes the network sum-rate.

Offering the 3GPP Common API Framework as Microservice to Vertical Industries

Alejandro Molina Sanchez (Telefónica I+D, Spain); Anastasios-Stavros Charismiadis and Dimitris Tsolkas (Fogus Innovations & Services, Greece); David Artuñedo Guillen (Telefónica, Spain); Javier Garcia Rodrigo (Telefónica I+D, Spain)
The 3GPP Common API Framework (CAPIF) has been standardized to guarantee a unique reference model for API-based service provisioning in 3GPP systems. The great potential of such framework is currently revealed due to the need for interaction between vertical industries and mobile networks. Towards realizing the above-mentioned interaction, we describe key functional aspects of CAPIF by focusing on related functional entities and APIs. In addition, we implemented the CAPIF Core Function, i.e., the main entity of CAPIF, as an effort to set the basis for an ecosystem where developers from vertical industries can easily develop network-interacting applications. To facilitate any further contribution in the area, our CAPIF implementation follows the principles of microservice programming, and it is released (open source) together with a set of evaluation tests.

RINA-Based Virtual Networking Solution for Distributed VNFs: Prototype and Benchmarking

Sergio Giménez Antón and Eduard Grasa (Fundació i2CAT, Internet i Innovació Digital a Catalunya, Spain); Carolina Fernandez (i2CAT Foundation, Spain); Muhammad Shuaib Siddiqui (Fundació i2CAT, Internet i Innovació Digital a Catalunya, Spain)
The decoupling of the network functions from the hardware they run on has become a common practice nowadays. Complex network services made up of multiple Virtual Network Functions (VNFs) can be instantiated over the distributed infrastructure of one ore more network operators. Such operators need to provide high performance connectivity to the VNF instances, isolating parallel network services running on top of multiple network substrates from each other. A promising tool that can provide a dynamic connectivity framework for such a challenging environment is RINA, the Recursive InterNetwork Architecture. RINA can be used as a network virtualization solution to support the connectivity needs of VNFs hosted within the network operators’ infrastructure; while bringing capabilities that current network architectures need to add as ad-hoc solutions, such as i) support for mobility; ii) multi-homing and iii) flexible mapping of application QoS requests to internal network policies.

A Network Programmability Framework for Vertical Applications in the Beyond 5G Era

Harilaos Koumaras (NCSR Demokritos, Greece); Dimitris Tsolkas (National and Kapodistrian University of Athens, Greece); Javier Garcia Rodrigo (Telefónica I+D, Spain); David Artuñedo Guillen (Telefónica, Spain); Bruno Garcia (University of Malaga, Spain); Ricardo Marco (Atos Spain, Spain); Apostolis K. Salkintzis (Motorola, Greece); Dimitrios Fragkos (National Centre for Scientific Research Demokritos (NCSRD) & University of Peloponnese, Greece); Georgios Makropoulos (NCSR Demokritos, Greece); Fotini Setaki (COSMOTE Mobile Telecommunications S.A. Greece, Greece); Almudena Diaz Zayas and Pedro Merino (University of Malaga, Spain); Vaios Koumaras (INFOLYSiS P. C., Greece); Paula Encinar Sanz (Atos Spain, Spain); Yannis Karadimas (National and Kapodistrian University of Athens & Maggioli Spa, Greece)
Programmability in 5G Core (5GC) enables operators to open telecom network capabilities and services to third-party developers, allowing them to establish innovative network-aware vertical applications. This openness is materialized through the 5G Service Based Architecture (SBA) that exposes the network intelligence to the vertical applications through standardized Application Programming Interfaces (APIs). Building upon the application empowerment that the programmable APIs can offer unleashing new business potentials, the ecosystem of Network Applications (NetApps) emerges to stand as a facilitating middleware between the network and applications. This study presents the architectural and implementation aspects of an open all-encompassing framework for NetApps considering their entire spanning from their development to their final publication in the market.

Performance-Aware Orchestration and Management over 5G and Beyond Infrastructures Based on Diagnostic Mechanisms

Ioannis Chondroulis (WINGS ICT SOLUTIONS, Greece); Christos Ntogkas, Ioannis-Prodromos Belikaidis, Andreas Georgakopoulos and Evangelos Kosmatos (WINGS ICT Solutions, Greece); Kostas Tsagkaris (Incelligent & WINGS ICT Solutions, Greece); Panagiotis Demestichas (University of Piraeus, Greece)
This work introduces the advanced orchestration and diagnostics components for 5G and beyond infrastructures enabling intelligent automated management of deployed vertical services. The paper presents the progress and results produced and also the actions for creating, deploying and monitoring a network service. The developed components can support both currently developing innovative 5G and 6G network services and solutions for vertical industries. These include features that enable the design phase of vertical users, intelligent orchestration mechanisms with optimal placement of services and finally to offer insights and performance analysis. In the context of the performance diagnosis mechanisms we propose a fault detection and localization model based on a combination of two respective modules, one that utilizes Self-Organizing Maps (SOM) as a Machine Learning technique and one that implements an algorithm based on adjacency lists to perform Root Cause Analysis (RCA). Finally, the aforementioned aspects are supported by some preliminary results in order to show the effectiveness of such approach.

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