État académique
Thèse en cours...
Sujet: Self organizing LTE/LTE-A radio access network with wireless mesh backhaul for maritime environment
Direction de thèse:
Ellipse bleue: doctorant, ellipse jaune: docteur, rectangle vert: permanent, rectangle jaune: HDR. Trait vert: encadrant de thèse, trait bleu: directeur de thèse, pointillé: jury d'évaluation à mi-parcours ou jury de thèse.
Productions scientifiques
Toward moving public safety networks
International audience
Fourth generation LTE has been selected by U.S. federal and EU authorities to be the technology for public safety networks that would allow first responders to seamlessly communicate between agencies and across geographical locations in tactical and emergency scenarios. From Release 11 on, 3GPP has been developing and specifying dedicated nationwide public safety broadband networks that will be scalable, robust, and resilient, and can address the specific communication needs of emergency services. In this realm, the requirements and scenarios for isolated E-UTRAN with no or limited backhaul access to the core network are still in progress. In this article, we survey possible public safety use cases with the induced network topologies, discuss the current status of the 3GPP standards, and highlight future challenges. We further elaborate on the need to support mobile backhauling in moving-cell scenarios and describe two LTE based solutions to enable dynamic meshing among the base stations.
ISSN: 0163-6804 IEEE Communications Magazine https://hal.archives-ouvertes.fr/hal-01296753 IEEE Communications Magazine, Institute of Electrical and Electronics Engineers, 2016, 54 (3), pp.14-20. <http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7432142>. <10.1109/MCOM.2016.7432142> http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7432142ARRAY(0x7fe6a73c1f68) 2016-03
Network store: Exploring slicing in future 5G networks
International audience
In this paper, we present a revolutionary vision of 5G networks, in which SDN programs wireless network functions, and where Mobile Network Operators (MNO), Enterprises, and Over-The-Top (OTT) third parties are provided with NFV-ready Network Store. The proposed Network Store serves as a digital distribution platform of programmable Virtualized Network Functions (VNFs) that enable 5G application use-cases. Currently existing application stores, such as Apple's App Store for iOS applications, Google's Play Store for Android, or Ubuntu's Software Center, deliver applications to user specic software platforms. Our vision is to provide a digital marketplace, gathering 5G enabling Network Applications and Network Functions, written to run on top of commodity cloud infrastructures, connected to remote radio heads (RRH). The 5G Network Store will be the same to the cloud as the application store is currently to a software platform.
MOBIARCH 2015, Mobility in the Evolving Internet Architecture https://hal.archives-ouvertes.fr/hal-01296747 MOBIARCH 2015, Mobility in the Evolving Internet Architecture, Sep 2015, Paris, France. <https://mobiarch15.lip6.fr/>. <10.1145/2795381.2795390> https://mobiarch15.lip6.fr/ARRAY(0x7fe6a706f5e0) 2015-09-15
5G Architectural Design Patterns
International audience
In this work, we present novel Architectural Design Patterns towards open, cloud-based 5G communications. We provide a brief classification of technologies that cannot be ignored in the design process of 5G systems and illustrate how a new technological added value can be created, when current methodologies, design paradigms, as well as design patterns and their extensions are properly exploited in efficient Radio Access Network (RAN) architectures. We believe that in many cases, the required technology is already there; nevertheless the correct approach has to be worked out and placed within an appropriate context, especially in the case of the integration of complex RAN systems. The enhancements in RF optimization, the progress in cloud computing, Software Defined Networks (SDN) and Network Function Virtualization (NFV), new design concepts such as Network Slicing have to become part of the RAN design methodology. Diverse architectural concepts should break existing stereotypes to pave the way towards the true 5G system integration.
IEEE International Conference on Communications Workshops (ICC) https://hal.archives-ouvertes.fr/hal-01357294 IEEE International Conference on Communications Workshops (ICC), May 2016, Kuala Lumpur, Malaysia. <10.1109/ICCW.2016.7503760>ARRAY(0x7fe6a73c0540) 2016-05-23
Public safety networks: Enabling mobility for critical communications
International audience
Long-term evolution (LTE) is becoming the technology reference for 4G cellular networks, as it is increasingly adopted by all major operators all over the world. Currently, LTE is rising to the challenge of addressing several issues (e.g. cellular networks’ capacity crunch, ultra-high bandwidth, ultra-low latency, massive numbers of connections, super-fast mobility, diverse-spectrum access) that speed up the pace toward 5G. Moreover, LTE is expected to be an important part of the 5G solution for future networks and also plays an essential role in advancing public safety (PS) communications. In the United States, LTE has been chosen as the next appropriate communication technology to support PS, and it is likely to be the same in the European Union. Moreover, several vendors (e.g. Ericsson, Nokia-Alcatel, Huawei, Cisco) are now starting to propose LTE-based PS solutions and some of them have been put to real experimentation in the field.
Wireless Public Safety Networks 2 : A systemic approach https://hal.archives-ouvertes.fr/hal-01357306 Wireless Public Safety Networks 2 : A systemic approach, ISTE; Elsevier, 2016, Wireless Public Safety Networks, 978-1-78548-052-2. <http://www.iste.co.uk/index.php?f=x&ACTION=View&id=981> http://www.iste.co.uk/index.php?f=x&ACTION=View&id=981ARRAY(0x7fe6a706fd18) 2016-07
Wireless mesh backhauling for LTE/LTE-A networks
International audience
It has been recognized that effective communications and the ability to share various media are keys to a successful operation in public safety and military applications. LTE (Long Term Evolution) is becoming the most widely deployed broadband communication technology making it the technology of choice for public safety to replace TETRA and similar networks. However, LTE is a cellular network by design in that it has planned and fixed antenna locations, and is connected to a common packet core network. Even though the LTE self-organized operation makes the planning, configuration, management, optimization and healing of the network simpler and faster, LTE networks are not well-suited for the moving cell, particularly to establish the backhaul link among the base stations. In this paper we present a novel concept of enhanced evolved Node B (e2NB) to enable meshing of the neighboring e2NBs and maintain the LTE-compliant communication service with the legacy terminals reusing the LTE air interface while moving. We evaluate the performance of the e2NB in terms of backhaul link performance and end-to-end communication using the OpenAirInterface (OAI) LTE implementation. Emulation results demonstrate the feasibility of the proposed approach to build a self-organized mesh network over LTE/LTE-A. They also show that LTE quality-of-service requirements can be maintained in multi-hop networks subject to resource allocation across multiple e2NBs.
Military Communications Conference, MILCOM 2015 - 2015 IEEE https://hal.archives-ouvertes.fr/hal-01296705 IEEE. Military Communications Conference, MILCOM 2015 - 2015 IEEE , Oct 2015, Tampa, United States. <http://events.jspargo.com/milcom15/public/enter.aspx>. <10.1109/MILCOM.2015.7357525> http://events.jspargo.com/milcom15/public/enter.aspxARRAY(0x7fe6a706fe98) 2015-10-26