Radio Expertise
R&D and Radio expertise activities allow SIRADEL to always be one step ahead and anticipate on future needs across the wireless industry (B3G, 4G, COFDMA, MIMO, Reconfigurability, UWB, ...).
Thanks to self-sustained R&D, new methods and tools are developed and used to support SIRADEL's propagation software development, geographical production, and consultancy activities.
Based on the know-how acquired in the field and via R&D, SIRADEL help their customers answer complex questions, which extend beyond the scope of planning tools.
Besides SIRADEL participate in national & international R&D projects in order to broaden the scope of our expertise, like:
ECOCells: Efficient Cooperating Cells Funded by French Research Agency (ANR)
Topic: 4G – Small Cells – Cooperative networks
Goals of project
- Algorithms and solutions required to allow Small Cell Network (SCN) deployment
- Architecture and algorithms for the backhauling network
- Coordinated interference management
- Appropriate channel models
- Prototype of an SCN network base station
- Experimental validation
Siradel tasks
- Simulation framework to evaluate algorithm performance
- System simulation
- Refine propagation models (time-variant models)
- Carry out field measurements
- Experimental campaigns
Freedom: Femtocell-based netwoRk Enhancement by intErference management and coorDination of infOrmation for seaMless connectivity Funded by European Commission (FP7)
Topic: Deployement of massive femtocells access points
Goals of project
- Coexistence of macrocells and femtocells on the same bands
- Variable quality connections of the femtocells to the internet
- Coordinated and uncoordinated interference management
- System-level evaluation and hardware demonstrator of the proposed femto-based network architecture
Siradel tasks
- System requirements and business case activities
- Contributing to the PHY level and system level propagation and interference modelling: useful signal and interference, and network modelling and optimization.
- Investigation on reliable link models for femto-macro and femto-femto.
- Investigation on human activity impact
- Proof-of-concept activities at the simulation and experiment levels.
Origin: Optical-Radio Infrastructure for Gigabit/s Indoor Networks and Services Funded by Brittany Region
Topic: High bit rate domestic networks
Goals of project
- Domestic infrastructure combining optical and wireless networks to provide high data bit rates
- Design an optimal architecture
- Support of multiple technologies
- Photonic components
- Radio over fiber (60GHz)
Siradel tasks
- Implement a hybrid simulator (optical & wireless)
- Simulate the network
- Estimate the key metric performances
Where: Wireless Hybrid Enhanced Mobile Radio Estimators Funded by European Commission (FP7)
Topic: Cooperative mobile radio communications and localisation
Goals of project
Optimize ubiquitous and converged network and service infrastructures for communication and media.
- Adaptive and predictive communications exploiting location positioning information for future systems with multiple capabilities on PHY/MAC layer
- Improvement of localisation for indoor and urban canyons
Siradel tasks
Building a measurement database for geolocation algorithms
Participation at defining solutions to enhance the localization in complex environments
Ucells: “Ultra-wide band real-time interference monitoring and CELLular management Strategies” Funded by European Commission (FP7)
Topic: Cooperative mobile radio communications and localisation
Goals of project
To study and to demonstrate the Cellular UWB capabilities employing a spectrum monitoring system based on a high performance ADC in order to efficiently enable coexistence and compatibility of UWB-based wireless communications with existing and future mobile and fixed wireless systems.
- Cellular UWB architecture incorporating channel management and power-flow control strategies
- UWB spectrum monitoring platform and distributed radio-over-fibre (RoF) remote antennas
- Interference-monitoring algorithms
Siradel tasks
Build a 3D heterogeneous propagation prediction simulator
Participation at defining solutions to 3D UWB interference modelling and estimation
Semafor: Advanced Metrology System for new waveforms Funded by ANR (French National Agency)
Topic: Metrology system and evaluation algorithm
Goals of project
- Provide an advanced metrology system to face the challenging convergent networks. Theoretical, algorithmic, hardware and software studies have been realized.
- The unique « All in one » metrology system can be mounted on a vehicle or is even portable.
- Geolocation algorithm have been derived to locate the possible interferer on multi radio air interfaces
Siradel tasks
Provide measurement methodologies for various radio standard campaigns
Enhance existing simulation tools to cope with all involved radio standards: broadcast, broadband radio access, cellular
Derive new metrics in the simulation to analyse the radio systems measurements
Idromel: Impact of reconfigurable equipment for the deployment of future mobile networks Funded by ANR (French National Agency)
Topic: Cognitive radio, equipment reconfigurability
Goals of project
- Design and implement a prototype of universal communication system, comprising a mobile terminal (ie a very evolved mobile phone) and a base station (that is to say relay station)
- Explore the possibilities for rapid adaptation of telecommunications equipment
- Develop algorithm and simulator to test and to optimize the reconfigurability
Siradel tasks
Define simulator to deal with several air-interfaces including wide frequency band and MIMO systems
Provide inputs for geolocation algorithms used to improve the Joint Radio Resource Management
Pluto project
A European project of research of novel techniques for broadcast transmitter networks that will optimise the use of spectrum and minimise the performance demands on end user equipment.
Recitent project
Definition and equipment optimisation for indoor reception of DVB-T signals, taking into account cost difference compared to fixed reception and coverage rate.
Rhodos project
An experimenting network combining UMTS/TDD and WLAN technologies and featuring innovative and particularly QoS-demanding services such as video conferencing and video streaming.
Lao Tseu project
Investigating HSDPA, HSUPA and TD-SCDMA. Polarisation diversity and the MIMO approach will be further analysed.
Iroise project
Definition and validation of the seamless connectivity between national and regional WAN's, coupling between LMDS and WMAN/WLAN at 40GHz and 5GHz. High bit rate multimedia services are targeted including digital video (TV quality).
Erasme project
The goal of ERASME is to realize an LMDS platform in the 40.5-43.5 GHz band based in the Technopole de Limoges, in order to study the technological feasibility of high speed multimedia applications in the 41 GHz band.
Ermitages project
French research project (RNRT) aimed at investigating the BLAST concept application in the UMTS-TDD communication mode.
Commindor project
Study and design of new broadband (155 Megabit/s) wireless communication systems in the 60 GigaHz band inside buildings, suitable for future domestic networks, allowing to interconnect and control residential multimedia equipment.