A5062706927- Advanced MIMO Systems Optimization
- Advanced Wireless Network Optimization
- Cooperative Communication and Network Coding
- Telecommunications and Broadcasting Technologies
- Millimeter-Wave Propagation and Modeling
- IoT and Edge/Fog Computing
- Wireless Communication Networks Research
- Software-Defined Networks and 5G
- Microwave Engineering and Waveguides
- Advanced Wireless Communication Techniques
- IoT Networks and Protocols
- Multimedia Communication and Technology
- Simulation Techniques and Applications
- Open Source Software Innovations
- Power Line Communications and Noise
- Cognitive Radio Networks and Spectrum Sensing
- Advanced Signal Processing Techniques
- Smart Systems and Machine Learning
- Advanced Wireless Communication Technologies
- Transportation and Mobility Innovations
- Wireless Body Area Networks
- Advanced Optical Network Technologies
- Advanced Photonic Communication Systems
- Optimization and Packing Problems
- Digital Rights Management and Security
MediaTek (China)
2023-2025
Samsung (United Kingdom)
2016-2020
Samsung (United States)
2016
University of Surrey
2008-2015
CEA LETI
2015
CEA Grenoble
2015
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2015
This paper provides a holistic overview of multi-cell scheduling strategies in emerging wireless systems. Towards this objective, the evolution interference management techniques is thoroughly investigated from simple inter-cell coordination (ICIC) towards more advanced coordinated multipoint transmissions (CoMP), while comparing and contrasting their common features differences. Finally CoMP explored detail as an challenging mechanism to fully cooperate between adjacent cells order have...
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...
This letter proposes a novel graph-based multi-cell scheduling framework to efficiently mitigate downlink inter-cell interference in small cell OFDMA networks. incorporates dynamic clustering combined with channel-aware resource allocation provide tunable quality of service measures at different levels. Our extensive evaluation study shows that significant improvement user's spectral efficiency is achievable, while also maintaining relatively high via empirical tuning re-use factor across...
This paper addresses the problem of joint backhaul (BH) and access link optimization in dense small-cell networks with a special focus on time-division duplexing (TDD) mode operation BH transmission. Here, we propose framework for radio resource management, where systematically decompose links. To simplify analysis, procedure is tackled two stages. At first stage, formulated point-to-point scenario each small cell simply associated single user. It shown that can be decomposed into separate...
Millimeter wave (mmWave) technologies can enable current mobile communication systems to achieve higher data rates. However, wireless channels at mmWave frequencies experience isotropic path loss. Therefore, employing a suitable beamforming algorithm is an indispensable element of any system. Traditional multiple-input multiple-output (MIMO) employ digital where each antenna equipped with one RF chain. In case systems, however, the power consumption, signalling and hardware cost impose...
Cross-layer scheduling is a promising solution for improving the efficiency of emerging broadband wireless systems. In this tutorial, various cross-layer design approaches are organized into three main categories namely air interface-centric, user-centric and route-centric general characteristics each discussed. Thereafter, by focusing on interface-centric approach, it shown that resource allocation problem can be formulated as an optimization with certain objective function some particular...
In this paper, we define a flexible, adaptable, and programmable architecture for 5G mobile networks, taking into consideration the requirements, KPIs, current gaps in literature, based on three design fundamentals: (i) split of user control plane, (ii) service-based within core network (in line with recent industry standard consensus), (iii) fully flexible support E2E slicing via per-domain cross-domain optimisation, devising inter-slice management functions, refining behavioural models...
This paper presents some key findings w.r.t. the Radio Resource Management (RRM) in wireless Backhaul (BH) of mmWave networks. First, envisioned design backhaul architecture is outlined highlighting most important newly needed functional blocks and what they differ from a non-mmWave architectures. Next, challenges functionality RRM techniques are discussed, focusing on Routing Link scheduling algorithms such BH architecture. Furthermore different possible interactions between functions...
This paper proposes a novel graph-based multicell scheduling framework to efficiently mitigate downlink intercell interference in OFDMA-based small cell networks. We define optimization based on condition between any two users the network assuming they are served similar resources. Furthermore, we prove that proposed obtains tight lower bound for conventional weighted sum-rate maximization problem practical scenarios. Thereafter, decompose into dynamic graph-partitioning-based subproblems...
In the framework of forthcoming 5G telecommunication system, definition realistic use cases and prototypes strongly connected to them is key in order demonstrate how well emerging enabling technologies can fulfil challenges introduced by Heterogeneous Network (HetNet) architecture. This paper shows millimeter wave (mmWave) be properly assessed selecting real-life then deriving out experimental platforms significant system Key Performance Indicator (KPI). Finally, status mmWave activities...
This letter addresses the problem of subcarrier and power allocation over an OFDMA system with multiple constraints. Each constraint is related to sharing a resource by subset users. Here, framework based on time-sharing method proposed that allows for approaching optimum solution via using low complexity iterative algorithm. The provided sets upper bound performance any without time-sharing. will be further utilized derive suboptimum but efficient algorithms. Simulation results show...
This paper quantifies the impact of co-tier interference in femtocells (i.e. inter-cell arising from other neighbouring femtocells) through a semi-analytical approach concluding that without mitigation techniques, QoS form acceptable outage probability is not achievable scenarios representing medium to worst cases interference. Results obtained are also compared against Monte Carlo simulations for evaluation purposes. Subsequently, some important radio access parameters and deployment...
Abstract Designing and developing a millimetre‐wave (mmWave)‐based mobile radio access technology (RAT) in the 6–100 GHz frequency range is fundamental component standardisation of new 5G interface, recently kicked off by 3rd Generation Partnership Project. Such herein called mmWave RAT will not only enable extreme broadband services but also support ultra‐high definition/three‐dimensional streaming, offer immersive applications ultra‐responsive cloud to provide an outstanding quality...
This paper proposes a dynamic semi-centralized resource partitioning algorithm to mitigate the problem of co-tier interference in dense femtocell deployments. incorporates graph-colouring and network utility concepts address inter-cell networks. The aforementioned scheme acts as multi-cell coordination mechanism on top intra-cell scheduling by applying low complexity graph-based algorithm. objective is efficient management conflicts due environment consisting femtocells. defines novel...
Inter-cell Interference can be seen as a huge challenge towards meeting the high capacity and coverage targets, envisioned in 5G era. To this end, factors like expected density of access nodes reusing same spectrum, diverse sources interference from heterogeneous technologies, flexible wireless backhauling consideration multiple services with different KPIs have strong impact on way management is handled. This paper discusses three key drivers, good candidates for service-tailored...
This paper addresses the problem of joint routing and backhaul link scheduling in a dense small cell network using 60GHz multi-hop backhaul, coordinated by local Cloud-RAN central unit. Our objective is to optimally select links paths be activated time domain enhance throughput minimize total delay, considering channel conditions Quality Service requirements. formulated as generalized vehicle decoupled into two sub-problems: channel-aware path selection queue-aware scheduling. The...
This paper explores network design requirements and radio resource management (RRM) functionalities required to enable a heterogeneous millimeter-wave (mmW) in both backhaul access links. First, the envisioned of mmW is outlined highlighting main functional blocks key differentiating factors from non-mmW architectures. Next, RRM networks are discussed detail, focusing on routing, link scheduling, dynamic TDD "beam cell" Finally, some recent findings presented, impact identified network-wide...
In this paper, the efficiencies of different interference coordination schemes are evaluated for emerging wireless networks and possible impact on intra-cell scheduling is studied through extensive simulations. The results show that pure fractional frequency reuse can provide similar improvement in cell-edge throughput compared to power coordinated counterpart at a less cost terms overall throughput. Moreover, it fairer distribution both central as well areas. However, scheme not mange...
In this paper, we present the performance evaluation of two widely used transport protocols, i.e. TCP and UDP, operating on top LTE network structure. We investigate key metrics that influence directly user experience, such as end-to-end throughput, under various channel conditions protocol settings. identify a number issues when current stack is exposed to inferior quality. Specifically, located at cell edge, interference from neighbouring becomes intenser while signal power reduces due...
Mobile communication technology has been rapidly evolving ever since its first introduction in the late 1980s. The development witnessed is not just refinement of radio access techniques, but also progression towards offering sophisticated features and services to mobile phone users. To fulfill this ever-growing user demand market trends, frequency ranges millimeter wave bands are envisioned for wireless transmission. respond EU-funded mmMAGIC project launched main objective design develop...
In this paper, a novel framework is proposed to integrate spectrum (resource) sharing into multihop scheduling in relay-assisted systems. This approach provides an effective solution minimize the effect of extra resources that are required transmission. Particularly, can be combined with different topologies resource provide better performance terms throughput and coverage compared benchmark non-sharing algorithms.