A5045740906- Advanced MIMO Systems Optimization
- Millimeter-Wave Propagation and Modeling
- Cooperative Communication and Network Coding
- Advanced Wireless Network Optimization
- Software-Defined Networks and 5G
- Telecommunications and Broadcasting Technologies
- IoT and Edge/Fog Computing
- Energy Harvesting in Wireless Networks
- Microwave Engineering and Waveguides
- Power Line Communications and Noise
- Wireless Communication Networks Research
- Network Security and Intrusion Detection
- Cognitive Radio Networks and Spectrum Sensing
- Advanced Wireless Communication Technologies
- Topic Modeling
- Satellite Communication Systems
- Indoor and Outdoor Localization Technologies
- Advanced Battery Technologies Research
- Opportunistic and Delay-Tolerant Networks
- Antenna Design and Analysis
- Expert finding and Q&A systems
- Natural Language Processing Techniques
- Advanced Optical Network Technologies
- Privacy-Preserving Technologies in Data
- Network Traffic and Congestion Control
Huawei Technologies (France)
2020-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2012-2021
CEA Grenoble
2012-2021
CEA LETI
2012-2021
Institut polytechnique de Grenoble
2011-2020
Université Grenoble Alpes
2010-2020
Huawei Technologies (China)
2020
Micro and Nanotechnology Innovation Centre
2014-2018
Aalborg University
2017
Huawei Technologies (Germany)
2017
The evolution toward 5G mobile networks will be characterized by an increasing number of wireless devices, device and service complexity, the requirement to access services ubiquitously. Two key enablers allow realization vision 5G: very dense deployments centralized processing. This article discusses challenges requirements in design based on these two enablers. It how cloud technologies flexible functionality assignment radio enable network densification operation over heterogeneous...
The exponential increase of mobile data traffic requires disrupting approaches for the realization future 5G systems. In this article, we overview technologies that will pave way a novel cellular architecture integrates high-data-rate access and backhaul networks based on millimeter-wave frequencies (57-66, 71-76, 81-86 GHz). We evaluate feasibility short- medium-distance links at these analyze requirements from transceiver technology, antennas, modulation scheme points view. Technical...
Dynamic spectrum policies combined with software defined radio are powerful means to improve the overall spectral efficiency allowing development of new wireless services and technologies. Medium Access Control (MAC) protocols exploit sensing stimuli build up a opportunity map (cognitive sensing). Available resources scheduled (dynamic allocation), improving coexistence between users that belong heterogeneous systems sharing). Furthermore, MAC may allow cognitive vacate selected channels...
Cellular networks have changed the world we are living in, and fifth generation (5G) of radio technology is expected to further revolutionise our everyday lives by enabling a high degree automation, through its larger capacity, massive connectivity, ultra-reliable low-latency communications. In addition, third partnership project (3GPP) new (NR) specification also provides tools significantly decrease energy consumption green house emissions next generations networks, thus contributing...
Very dense deployments of small cells are one the key enablers to tackle ever-growing demand on mobile bandwidth. In such deployments, centralization RAN functions cloud resources is envisioned overcome severe inter-cell interference and keep costs acceptable. However, back-haul constraints need be considered when designing functional split between front-ends centralized equipment. this paper we analyse outline applications flexible centralization.
This paper presents the approach of extending cellular networks with millimeter-wave backhaul and access links. Introducing a logical split between control user plane will permit full coverage while seamlessly achieving very high data rates in vicinity mm-wave small cells.
This paper focuses on energy efficiency aspects and related benefits of radio-access-network-as-a-service (RANaaS) implementation (using commodity hardware) as architectural evolution LTE-advanced networks toward 5G infrastructure. RANaaS is a novel concept introduced recently, which enables the partial centralization RAN functionalities depending actual needs well network characteristics. In view future definition systems, this cloud-based design an important solution in terms efficient...
The emergence of 5G enables a broad set diversified and heterogeneous services with complex potentially conflicting demands. For networks to be able satisfy those needs, flexible, adaptable, programmable architecture based on network slicing is being proposed. A softwarization cloudification the communications required, where functions (NFs) are transformed from programs running dedicated hardware platforms over shared pool computational communication resources. This architectural framework...
While, according to the World Health Organization, no adverse health effects of radio-frequency (RF) electromagnetic fields (EMFs) have been established date, EMF exposure from wireless communication networks is nonetheless often cited as a major cause public concern and frequently given considerable media coverage. This article presents results new survey on RF-EMF risk perception together with comprehensive overview footprint existing emerging networks. On basis these findings, we then put...
Data analytics can be seen as a powerful tool for the fifth-generation (5G) communication system to enable transformation of envisioned challenging 5G features into reality. In current architecture, some first toward this direction have been adopted by introducing new functions in core and management domains that either run on collected communication-related data or enhance already supported network with statistics collection prediction capabilities. However, possible further enhancements...
Network densification and millimeter-wave technologies are key enablers to fulfill the capacity data rate requirements of fifth generation (5G) mobile networks. In this context, designing low-complexity policies with local observations, yet able adapt user association respect global network state dynamics is a challenge. fact, frameworks proposed in literature require continuous access information recompute when radio environment changes. With complexity associated such an approach, these...
The energy consumption of the fifth generation(5G) mobile networks is one major concerns telecom industry. However, there not currently an accurate and tractable approach to evaluate 5G base stations (BSs) power consumption. In this article, we propose a novel model for realistic characterisation multi-carrier BSs, which builds on large data collection campaign. At first, define machine learning architecture that allows modelling multiple BS products. Then, exploit knowledge gathered by...
The arrival of the 5G NR provides a unique opportunity for introducing new inter-cell interference coordination (ICIC) mechanisms. objective is twofold: to better exploit benefits ICIC in coherence with rest radio resource management (RRM) principles 5G, and support services deployment scenarios. We propose several enhanced techniques. In uplink, pilot sequence configuration mitigates problem such pilots, which especially severe cell-edge users. downlink, coordinated small cell DTX aims at...
We characterize a two tier heterogeneous network, consisting of classical sub-6 GHz macro cells, and multi radio access technology (RAT) small cells able to operate in millimeter-wave (mm-wave) bands. For optimizing coverage balance loads, we propose two-step mechanism based on biases for tuning the RAT selection, where band is used speed-up initial procedure mm-wave RAT. First, investigate effect terms signal-to-interference-plus-noise ratio (SINR) distribution, cell load, user throughput....
Network slicing is a key enabler to successfully support 5G services with specific requirements and priorities. Due the diversity of these services, slice deployment orchestration are essential guarantee service performance in cost-effective way. Here, we propose an Artificial Intelligence framework for cross-slice admission congestion control that simultaneously considers communication, computing, storage resources maximize utilization operator revenue. First, smart feature extraction...
Network virtualization is a key enabler for 5G systems to support the expected use cases of vertical markets. In this context, we study joint optimal deployment Virtual Functions (VNFs) and allocation computational resources in hybrid cloud infrastructure by taking requirements services characteristics architecture into consideration. The resulting mixed-integer problem reformulated as an integer linear problem, which can be solved using standard solver. Our results underline advantages over...
The 5G CHAMPION Consortium will provide the first fully integrated and operational prototype in 2018 - this effort is a major leap ahead compared to existing punctual technology trials, such as, e.g., Proof-of-Concept platforms focusing on mmWave communication specific bands, etc. This paper describes overall set-up including synergetic combination of technologies as beamforming based & Satellite service provisioning, virtualized infrastructure, software reconfiguration across entire stack,...
This paper considers heterogeneous cellular networks, where cluster of small cells are deployed to create local hot spots inside the macro cell. In past, most research in this topic has focused on mitigating inter cell interference; however, wireless backhaul recently emerged as an urgent challenge enable ubiquitous broadband services at cells. Hence, we propose a novel selection framework, which associates users and access nodes improve efficiency overall radio resource utilization avoid...
Nowadays, heterogeneous networks are seen as a key enabler to meet the challenging performance required for evolution of LTE networks. At same time, cloud computing is an emerging trend that outsources and storage resources, extends mobile handsets capability processing large data amounts. Cooperation in allows better (improved) network management by reducing power consumption, enhancing coverage, deployment communication costs. Within paradigm, federating femtocells clusters not only helps...
Motivated by the concerns about climate change, energy-harvesting technologies have recently gained particular interest to support growing power demand of cellular networks. The environment-friendly sources coupled with batteries enable significantly reduce carbon emissions as well electricity bill mobile network operators (MNOs). However, incautious battery usages can heavily damage storage capabilities and require large expenses for replacement. To investigate this tradeoff, we propose an...
This paper presents the vision of 5G-MiEdge, a research project leveraging benefits merging MEC and mmWave technologies. Based on that vision, most relevant use cases services for forthcoming Tokyo 2020 Olympics are proposed. The focus is showing how integrating into 5G network architecture can offer much more effective system. That achieved by means an edge cloud introduction ultra-lean inter-operable signaling, called `liquid control plane', capable providing ubiquitous allocation...
Vertical markets and industries are addressing a large diversity of heterogeneous services, use cases, applications in 5G. It is currently common understanding that for networks to be able satisfy those needs, flexible, adaptable, programmable architecture based on network slicing required. Moreover, softwarization cloudification the communications already happening, where functions (NFs) transformed from monolithic pieces equipment programs running over shared pool computational...