Starting date : Jul. 2015 > Jun. 2018
Lifetime: 36 months
Program in support : H2020-ICT-14-2014 Advanced 5G Network Infrastructure for the Future Internet
Status project : complete
CEA-Leti's contact :
Benoit Miscopein
Bernard Strée
Project Coordinator: University of Surrey (UK)
Partners: - DE: Eurescom, Intel Germany GmbH, Rhode-Schwartz
- GB: BT, University of Surrey
- FR: CEA-Leti
- GR: Intracom Telecom, Wings ICT Solutions
- PT: Instituto de comunicações
Target market: n/a
Publications:«UNII-MAC protocol: Design and evaluation for 5G
ultra-dense small cell networks operating in 5GHz unlicensed
spectrum», R. El Chall, B.Miscopein, D. Kténas, ELSEVIER
Comupter Communications, volume 126, pp. 11-27.
«Trends and Challenges for Autonomic RRM and MAC
Functionality for QoS Provision and Capacity Expansions
in the Context of 5G Beyond 6GHz», I.-Pr. Belikaidis,
A. Georgakopoulos, P. Demestichas, U. Herzog, Kl. Moessner,
S. Vahid, M.Fitch, K. Briggs, B. Miscopein, in Proc. 2017
European Conference on Networks and Communications
(EuCNC), Oulu, 12-15 June, 2017.
«TDD MAC protocol implementation for dynamic spectrum
access in the 5 GHz band», J. Estavoyer and B. Miscopein,
demonstration presented during the 25th International
Conference on Telecommunications (ICT), ICT 2018, 26-28
June 2018, Saint-Malo, France.
Investment: € 5.6 m.
EC Contribution: € 5.6 m.
| Stakes
CEA-Leti’s main contributions to the SPEED-5G project involve MAC design, resource management for 5G traffic and real-time implementation. On the MAC side, CEA-Leti has defined a medium access control protocol, which aims to exploit the time/frequency characteristics of 5G-NR-compliant waveforms. On the RRM side, CEA-Leti has contributed to providing a RRM algorithm designed for channel selection decision-making based on reinforcement learning. As far as implementation is concerned, CEA-Leti has provided a real-time PHY/MAC system, which has been integrated into the project testbed.
The outcomes of the project include:
• Specification and validation of a MAC protocol for broadband traffic supporting various Quality-of-Service (QoS) requirements, operating on the 5 GHz band and complying with the European regulation (listen-before-talk). This MAC protocol has been implemented in real time on a custom hardware platform and integrated into the project test bed. • Specification and validation of an RRM algorithm for channel selection based on reinforcement learning, which exploits the LBT nature of the MAC protocol. This algorithm is based on the Multi-Armed bandit framework and has showed promising results in simulations of synthetic scenarios. This algorithm has been described in a patent application which has now been filed. • The MAC/RRM designs have been implemented on custom HW/S platforms and have been validated in real-life deployment though over-the-air demonstration of video streaming in the 5GHz band. This implementation was notably demonstrated during the SPEED-5G public event held on BT premises in London. The demonstration showed that great performance coexisted with corporate WIFI access-points. • CEA-Leti’s work has been disseminated through two journal papers, four conference papers and a demonstration made during a conference.
With the advent of 5G, exponential traffic growth may lead to spectrum crunch. SPEED-5G proposes relying on a 3-dimensional model (densification, multi-technology, additional spectrum terms extended-DSA (eDSA)). Several technologies are implemented and managed to enhance spectrum availability in cooperation with multiple technologies to support capacity increase and service provision without impacting quality of experience, even improving it. SPEED-5G has developed innovative cloud-based architecture for ultra-dense networks based on a mix of centralized and decentralized resource management techniques. These coordinate a group of small cells so that interference can be managed based on opportunistic access on sub-6GHz spectrum resources with various licensing regimes. Small cells implement a multi-RAT MAC capable of resource management decisions on a local basis and efficiently steering traffic on these bands based on new waveforms such as filter bank multicarrier (FBMC). SPEED-5G has enriched specification of a hierarchical RRM/MAC framework and has implemented practical solutions to show the gain improvement in broadband traffic patterns. This has been integrated with HW/SW platforms on the project testbed, which embraces real-time MAC, wireless backhauling and virtualized resource management.
IMPACT
The SPEED-5G project’s major contribution represented by design, evaluation and implementation of a hierarchical protocol stack addressing centralized and decentralized RRM, MAC and physical layers has been able to optimize heterogeneous resources (e.g. spectra) in very dense networks. The project results have been promoted in multiple papers submitted to numerous standardization organizations (ETSI/RRM, 3GPP SA2, IEEE 1900.7 and IEEE 1932.1) and at a public event in March 2018.
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