Now showing items 21-40 of 46

  • Intercell wireless communication in software-defined metasurfaces 

    Tasolamprou, Anna; Mirmoosa, Mohammad Sajjad; Tsilipakos, Odysseas; Pitilakis, Alexandros; Liu, Fu; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Liaskos, Christos; Kantartzis, Nikolaos V.; Tretyakov, Sergei; Kafesaki, Maria; Economou, Eleftherios; Soukoulis, Costas (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Tunable metasurfaces are ultra-thin, artificial electromagnetic components that provide engineered and externally adjustable functionalities. The programmable metasurface, the HyperSurFace, concept consists in integrating ...
  • MAC-oriented programmable terahertz PHY via graphene-based Yagi-Uda antennas 

    Hosseininejad, Seyed Ehsan; Abadal Cavallé, Sergi; Neshat, Mohammad; Faraji-Dana, Reza; Lemme, Max; Suessmeier, Christoph; Bolívar, Peter Haring; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Graphene is enabling a plethora of applications in a wide range of fields due to its unique electrical, mechanical, and optical properties. In the realm of wireless communications, graphene shows great promise for the ...
  • Material-dependencies of the THz emission from plasmonic graphene-based photoconductive antenna structures 

    Suessmeier, Christoph; Abadal Cavallé, Sergi; Stock, Daniel; Schaeffer, Stephan; Alarcón Cot, Eduardo José; Hosseininejad, Seyed Ehsan; Wigger, Anna K.; Wagner, Stefan; Cabellos Aparicio, Alberto; Lemme, Max; Bolívar, Peter Haring (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    Graphene supports surface plasmon polaritons with comparatively slow propagation velocities in the THz region, which becomes increasingly interesting for future communication technologies. This ability can be used to realize ...
  • Medium access control in wireless network-on-chip: a context analysis 

    Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Torrellas, Josep; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2018-06-01)
    Article
    Open Access
    Wireless on-chip communication is a promising candidate to address the performance and efficiency issues that arise when scaling current NoC techniques to manycore processors. A WNoC can serve global and broadcast traffic ...
  • Millimeter-wave propagation within a computer chip package 

    Timoneda, Xavier; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Manessis, Dionyssios; Zhou, Jin; Franques, Antonio; Torrellas, Josep; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Wireless Network-on-Chip (WNoC) appears as a promising alternative to conventional interconnect fabrics for chip-scale communications. The WNoC paradigm has been extensively analyzed from the physical, network and architecture ...
  • Multicast on-Chip traffic analysis targeting manycore NoC design 

    Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto; Martínez, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    The scalability of Network-on-Chip (NoC) designs has become a rising concern as we enter the many core era. Multicast support represents a particular yet relevant case within this context and has been the focus of different ...
  • Networking challenges and prospective impact of broadcast-oriented wireless networkson- chip 

    Abadal Cavallé, Sergi; Nemirovsky, Mario; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2015)
    Conference report
    Restricted access - publisher's policy
    The cost of broadcast has been constraining the design of manycore processors and of the algorithms that run upon them. However, as on-chip RF technologies allow the design of small-footprint and high-bandwidth antennas ...
  • On the area and energy scalability of wireless network-on-chip: a model-based benchmarked design space exploration 

    Abadal Cavallé, Sergi; Iannazzo Soteras, Mario Enrique; Nemirovsky, Mario; Cabellos Aparicio, Alberto; Lee, Heekwan; Alarcón Cot, Eduardo José (2014-07-02)
    Article
    Open Access
    Networks-on-Chip (NoCs) are emerging as the way to interconnect the processing cores and the memory within a chip multiprocessor. As recent years have seen a significant increase in the number of cores per chip, it is ...
  • OrthoNoC: a broadcast-oriented dual-plane wireless network-on-chip architecture 

    Abadal Cavallé, Sergi; Torrellas Jovani, Josep; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2017-10-20)
    Article
    Open Access
    On-chip communication remains as a key research issue at the gates of the manycore era. In response to this, novel interconnect technologies have opened the door to new Network-on-Chip (NoC) solutions towards greater ...
  • Programmable metasurfaces: state of the art and prospects 

    Liu, Fu; Pitilakis, Alexandros; Mirmoosa, Mohammad Sajjad; Tsilipakos, Odysseas; Wang, Xuchen; Tasolamprou, Anna; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Liaskos, Christos; Kantartzis, Nikolaos V.; Kafesaki, Maria; Economou, Eleftherios; Soukoulis, Costas; Tretyakov, Sergei (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Metasurfaces, ultrathin and planar electromagnetic devices with sub-wavelength unit cells, have recently attracted enormous attention for their powerful control over electromagnetic waves, from microwave to visible range. ...
  • Pulse interspersing in static multipath chip environments for Impulse Radio communications 

    Mestres Sugrañes, Albert; Abadal Cavallé, Sergi; Llatser Martí, Ignacio; Alarcón Cot, Eduardo José; Lee, Heekwan; Cabellos Aparicio, Alberto (2016-09-01)
    Article
    Open Access
    Communications are becoming the bottleneck in the performance of Chip Multiprocessor (CMP). To address this issue, the use of wireless communications within a chip has been proposed, since they offer a low latency among ...
  • Reconfigurable THz plasmonic antenna based on few-layer graphene with high radiation efficiency 

    Hosseininejad, Seyed Ehsan; Neshat, Mohammad; Faraji-Dana, Reza; Lemme, Max; Bolívar, Peter Haring; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Abadal Cavallé, Sergi (2018-07-28)
    Article
    Open Access
    Graphene plasmonic antennas possess two significant features that render them appealing for short-range wireless communications, notably, inherent tunability and miniaturization due to the unique frequency dispersion of ...
  • Replica: a wireless manycore for communication-intensive and approximate data 

    Fernando, Vimuth; Franques, Antonio; Abadal Cavallé, Sergi; Misailovic, Sasa; Torrellas, Josep
    Conference report
    Restricted access - publisher's policy
    Data access patterns that involve fine-grained sharing, multicasts, or reductions have proved to be hard to scale in sharedmemory platforms. Recently, wireless on-chip communication has been proposed as a solution to this ...
  • Reprogrammable graphene-based metasurface mirror with adaptive focal point for THz imaging 

    Hosseininejad, Seyed Ehsan; Rouhi, Kasra; Neshat, Mohammad; Faraji-Dana, Reza; Cabellos Aparicio, Alberto; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José (Nature, 2019-02-27)
    Article
    Open Access
    Recent emergence of metasurfaces has enabled the development of ultra-thin flat optical components through different wavefront shaping techniques at various wavelengths. However, due to the non-adaptive nature of conventional ...
  • Scalability of broadcast performance in wireless network-on-chip 

    Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Nemirovsky, Mario; Lee, Heekwan; González Colás, Antonio María; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (2016-12-01)
    Article
    Open Access
    Networks-on-Chip (NoCs) are currently the paradigm of choice to interconnect the cores of a chip multiprocessor. However, conventional NoCs may not suffice to fulfill the on-chip communication requirements of processors ...
  • Scalability of network capacity in nanonetworks powered by energy harvesting 

    Cid-Fuentes, Raül G.; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (Association for Computing Machinery (ACM), 2015)
    Conference report
    Restricted access - publisher's policy
    This paper provides design guidelines in the feasibility and deployability of nanonetworks powered by energy harvesting techniques throughout bounding the per node throughput capacity as a function of the number of nodes. ...
  • Scalability-oriented multicast traffic characterization 

    Abadal Cavallé, Sergi; Martinez Morais, Raul; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Restricted access - publisher's policy
    Multicast on-chip communications are expected to become an important concern as the number of cores grows and we reach the manycore era. The increasing importance such traffic flows directly contrasts with the diminishing ...
  • Spoofing prevention via RF power profiling in wireless network-on-chip 

    Lebiednik, Brian; Abadal Cavallé, Sergi; Kwon, Hyoukjun; Krishna, Tushar (Association for Computing Machinery (ACM), 2018)
    Conference report
    Open Access
    With increasing integration in SoCs, the Network-on-Chip (NoC) connecting of cores and accelerators is of paramount importance to provide low-latency and high-throughput communication. Due to limits of scaling of electrical ...
  • Study of hybrid and pure plasmonic terahertz antennas based on graphene guided-wave structures 

    Hosseininejad, Seyed Ehsan; Alarcón Cot, Eduardo José; Komjani, Nader; Abadal Cavallé, Sergi; Lemme, Max; Bolívar, Peter Haring; Cabellos Aparicio, Alberto (2017-06-01)
    Article
    Open Access
    Graphene is a unique material for the implementation of terahertz antennas due to extraordinary properties of the resulting devices, such as tunability and compactness. Existing graphene antennas are based on pure plasmonic ...
  • Surveying of pure and hybrid plasmonic structures based on graphene for Terahertz Antenna 

    Hosseininejad, Seyed Ehsan; Alarcón Cot, Eduardo José; Komjani, Nader; Abadal Cavallé, Sergi; Lemme, Max; Bolívar, Peter Haring; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2016)
    Conference report
    Restricted access - publisher's policy
    Graphene is a unique material for the implementation of terahertz antennas due to extraordinary properties of the resulting devices, such as tunability and compactness. Existing graphene antennas are based on pure plasmonic ...