The Wireless Networks (WiNe) research group of the IN3 pioneers technologies that improve the way devices communicate. This time the group organises two talks about opportunities and challenges for 5G cellular networks by Nikolaos Giatsoglou and Matteo Vincenzi (Researchers at Iquadrat S.L.).
Venue
Room -1A, UOC Castelldefels building (Parc Mediterrani de la Tecnologia, B3 building)
Av. Carl Friedrich Gauss, 5
08860 Castelldefels (Barcelona)
Espanya
When
18/11/2016 10.00h
Organized by
Universitat Oberta de Catalunya, WiNe research group of the IN3
Program
"Full-Duplex Wireless Communications: Opportunities and Challenges for 5G Cellular Networks", Nikolaos Giatsoglou, Researcher at Iquadrat S.L.
Today's wireless technology has reached a maturity that is evident to all of us and is best exemplified by the high data-rates and the enhanced coverage of the modern cellular networks. Yet, curiously, wireless radios still cannot transmit and receive simultaneously in the same frequency band or, as we say in technical terms, transmit in full-duplex mode, which could further speed up communication and relieve the traffic bottleneck that the current cellular networks are facing. Unfortunately, wireless full-duplex is hampered by the huge self-interference signal that a full-duplex radio receives directly from its own transmitting antenna, which swamps all other received signals: just imagine what a very loud person hears when he is speaking! As a consequence, the wireless world has long believed that the wireless networks are inherently half-duplex. However, recent experimental studies have broken this assumption and made wireless full-duplex communication a reality. In this talk, we will present the technological steps that made wireless full-duplex feasible and discuss the potential applications and the challenges of this technology, as well as its relation to the 5th generation (5G) of mobile communications.
"Efficient sharing mechanisms for 5G multi-tenant C-RAN", Matteo Vincenzi, Researcher at Iquadrat S.L.
Facing the increasing energy demands associated with the perspective of fifth generation (5G) capacity needs, Mobile Network Operators (MNOs) are motivated to gradually convert their traditional Radio Access Network (RAN) infrastructure to more flexible and power efficient centralized architectures, i.e., Cloud-RAN (C-RAN). Apart from their promising benefits in terms of management and network optimization, C-RAN enables a better resource utilization efficiency by dynamic infrastructure and spectrum sharing among multiple operators. In this talk, we will focus on the possibility of MNO cooperation in the context of coexisting C-RAN deployments, providing incentives and highlighting potential gains. We will show how coalitional game theory can be used to study the cooperation incentives, which can be expressed in terms of users QoS improvements, as well as profit gain for the operators. Depending on different operators and market share combinations, small or big coalitions might be preferable, but cooperation itself is proved to be always advantageous.
The seminars will be held in English.