• When & Where: Seminars are generally (please, check the timeline and location before coming!) held on:
    • Wednesday afternoon at LINCS (14h-15h, Salle de Conseil) and
    • Thursday afternoon at Barrault (14h-15h, Amphi Saphir).
  • Contact us: if you wish to give a talk on networking, math, software or embedded-system topics, do not hesitate to contact us

[Next talks] [All talks]

17/02/2016 (@LINCS, Seminar Room)Kenneth Shum (Chinese University of Hong Kong, Institute of Network Coding)Lattice network codes based on Barnes-Wall lattices
24/02/2016 (@LINCS, Seminar Room)Mohammed Yazid Lyazidi (UPMC)Dynamic Resource Allocation for C-RAN systems
24/02/2016 (@LINCS, Seminar Room)Diego Hora (UPMC - Technicolor)TBD

Date:17/02/2016, 14h
Room:LINCS, Seminar Room
Speaker:Kenneth Shum (Chinese University of Hong Kong, Institute of Network Coding)
Talk:Lattice network codes based on Barnes-Wall lattices
Abstract:Lattice network coding is employed in physical-layer network coding, with applications to two-way relay networks and multiple-access channels. The receiver wants to compute a linear combination of the source symbols, which are drawn from a finite alphabet equipped with some algebraic structure. In this talk, we construct lattice network codes from lattices such as the E8 lattice and the Barnes-Wall lattice, which have the best known packing density and shaping gain in dimension 8 and 16, respectively. Simulation results demonstrate that there is a significant performance gain in comparison to the baseline lattice network code with hyper-cube shaping.
Biography:Kenneth Shum received the B.Eng. degree in Information Engineering from the Chinese University of Hong Kong in 1993, and the M.S. and Ph.D. degree in Electrical Engineering from University of Southern California in 1995 and 2000 respectively. He is now a research fellow in the Institute of Network Coding, CUHK. His research interests include information theory, coding theory and cooperative communication in wireless network. He is also a member of Composers and Authors Socity of Hong Kong (CASH) and has Erdos number 2.
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Date:24/02/2016, 14h30 - 15h00
Room:LINCS, Seminar Room
Speaker:Mohammed Yazid Lyazidi (UPMC)
Talk:Dynamic Resource Allocation for C-RAN systems
Abstract:Cloud-Radio Access Network (C-RAN) is a new emerging technology that holds alluring promises for Mobile network operators regarding capital and operation cost savings. However, many challenges still remain before full commercial deployment of C-RAN solutions. Dynamic resource allocation algorithms are needed to cope with significantly fluctuating traffic loads. Those algorithms must target not only a better quality of service delivery for users, but also less power consumption and better interference management, with the possibility to turn off RRHs that are not transmitting. To this end, we propose a dynamic two-stage design for downlink OFDMA resource allocation and BBU-RRH assignment in C-RAN. Simulation results show that our proposal achieves not only a high satisfaction rate for mobile users, but also minimal power consumption and significant BBUs savings, compared to state-of-the-art schemes.
Biography:Yazid L​yazidi received his Diploma in Computer Science and Telecommunications Engineering from INPT, Rabat, Morocco, in 2014 and the M.S. degree in Advanced Wireless Systems from École supérieure d'électricité SUPELEC, Gif sur Yvette, France the same year. He is now a PhD candidate in LIP6, University Pierre and Marie Curie, Paris, under the advisory of Prof. Rami Langar and Dr. Nadjib AITSAADI. His research topics include energy minimization and resource management in Cloud RAN.
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Date:24/02/2016, 14h00 - 14h30
Room:LINCS, Seminar Room
Speaker:Diego Hora (UPMC - Technicolor)
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