Now showing items 21-40 of 52

    • Graphene-enabled wireless networks-on-chip 

      Llatser Martí, Ignacio; Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
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      Graphene-enabled Wireless Communications (GWC) advocate for the use of graphene-based plasmonic antennas, or graphennas, which take advantage of the plasmonic properties of graphene to radiate electromagnetic waves in the ...
    • Initial MAC exploration for graphene-enabled wireless networks-on-chip 

      Piro, Giuseppe; Abadal Cavallé, Sergi; Mestres Sugrañes, Albert; Alarcón Cot, Eduardo José; Solé Pareta, Josep; Grieco, L. Alfredo; Boggia, Gennaro (Association for Computing Machinery (ACM), 2014)
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      In the upcoming many-core era, chip multiprocessor architectures will be composed of hundreds or even thousands of processor cores, which interact among them through an on-chip communication platform for synchronization ...
    • 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)
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      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)
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      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)
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      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 ...
    • Opportunistic beamforming in wireless network-on-chip 

      Abadal Cavallé, Sergi; Marruedo, Adrián; Franques, Antonio; Taghvaee, Hamidreza; Cabellos Aparicio, Alberto; Zhou, Jin; Torrellas, Josep; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Wireless Network-on-Chip (WNoC) has emerged as a promising alternative to conventional interconnect fabrics at the chip scale. Since WNoCs may imply the close integration of antennas, one of the salient challenges in this ...
    • 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 metamaterials for software-defined electromagnetic control: circuits, systems, and architectures 

      Abadal Cavallé, Sergi; Cui, Tie-Jun; Low, Tony; Georgiou, Julius (2020-03-01)
      Article
      Open Access
      Metamaterials and their two-dimensional analogues, metasurfaces, have recently attracted enormous attention because of their powerful control over electromagnetic (EM) waves from microwave to visible range. Moreover, by ...
    • 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
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      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
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      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. ...