N-Guard: a Solution to Secure Access to NFC tags

  • Di Pietro R.
  • Oligeri G.
  • Salleras X.
  • Signorini M.

In this paper we propose N-Guard: a portable, effective, and efficient solution to thwart contactless skimming of NFC cards. Our solution enables an NFC-compliant smartphone to become the protector of the user's cards, preventing the adversary from harvesting the cards' data. Moreover, we also introduce a fine grained access control ...

Identification of connected objects based on network protocol data

  • Ammar N.
  • Noirie L.
  • Sebastien Tixeuil

The increasing number of connected objects and their growing variety make it necessary to have a system to recommend IoT services for end-users, so that they can make better use of the connected objects at their disposal. In this context, we would like to propose autonomous mechanisms communicating with the ...

Maldistribution of Two-Phase Flow in Parallel Channel Heat Sinks: Effects of Thermal Connection Between Channels

  • Patankar G.
  • Salamon T.

Two-phase cold plates, in which heat is transferred to a fluid flow via the process of flow boiling, offer a high performance thermal management solution for a variety of applications. Studies have identified that flow in such cold plates can be accompanied by flow instabilities. This work studies the maldistribution ...

Thermal Interface Material Enablement of Off-Board Two-Phase Cooling

  • Amalfi L.
  • Salamon T.
  • Smith M.
  • Thome J.

Two-phase, refrigerant-based cooling offers significant promise for increasing heat densities and energy efficiencies of electronic components. One barrier to wide spread adoption of two-phase cooling solutions is preserving product features deemed essential for product functionality. An important feature present in a wide range of product applications, particularly within the telecommunications ...

Towards systematic analysis of cybersickness in high motion omnidirectional video

  • Oyaga De Frutos N.
  • Oyaga N.
  • Perez P.
  • Ruiz Alonso J.
  • Ruiz J.
  • Villegas A.

Simulator sickness and visual discomfort are known undesired effects of immersive media systems. In this paper, we propose a methodology to systematically evaluate the effect of camera motion in cybersickness for omnidirectional video contents. By simulating camera motion, we have isolated its effect from other content factors, showing that sickness ...

Collector un nombre inconnu de coupons

  • Jacquet P.
  • Lamail M.
  • Mathieu F.

Dans les algorithmes de cartographie d'Internet, l'un des problemes cl'e `a r'esoudre est celui de la d'ecouverte des differentes interfaces de sorties d'un routeur en cas dequilibrage de charge: combien de sondes doit-on envoyer tester la connexion pour etre raisonnablement certain d'avoir d'ecouvert toutes les interfaces ? Une des solutions ...

Live Demonstration: 4K100p HEVC Intra Encoder

This paper describes a demonstration setup for real-time 4K HEVC intra coding. The system is built on Kvazaar open-source HEVC encoder partitioned between 22-core Xeon processor and two Arria 10 FPGAs. The demonstrator supports 1) live streaming of up to three 4K30p videos; or 2) offline video streaming up to ...

FPGA-Powered 4K120p HEVC Intra Encoder

This paper presents a hardware-accelerated Kvazaar HEVC intra encoder for 4K real-time video coding at up to 120 fps. The encoder is implemented on a Nokia AirFrame Cloud Server featuring a 2.4 GHz dual 14-core Intel Xeon processor and two Arria 10 PCI Express FPGA accelerator cards. The presented encoder ...

Weighted Sum Rate Maximization for Zero-Forcing Methods with General Linear Covariance Constraints

  • Claussen H.
  • Farrell R.
  • Flanagan M.
  • Pham T.
  • Tran L.

In this paper, an efficient approach for weighted sum rate maximization (WSRMax) for zero-forcing (ZF) methods with general linear transmit covariance constraints (LTCCs) is proposed. This problem has been extensively studied separately for some special cases such as for sum power or per-antenna power constraint (PAPC). Due to some practical ...

A Bayesian Probabilistic Approach to Hybrid Localization with GNSS and LTE-OTDOA in Multipath Channels

  • Geng C.
  • Huang H.

For time-of-arrival (TOA) localization, the channel bias introduced by unresolvable multipath and non-line-of-sight (NLOS) reflections severely degrade the performance. To address this impairment, Perez-Cruz et al. proposed a Bayesian probabilistic approach, which characterizes the channel bias with a probability distribution such that it can be robustly compensated, and illustrated its ...

Transparent integration of 3GPP mobile network in TSN networks

Time Sensitive Networking (TSN) is gaining importance for industrial deployments and is currently standardized. TSN is a set of IEEE 802.1Q protocols that enables deterministic communication between devices such as sensors, actuators, or controllers with possibly stringent latency requirements. These devices are typically connected to wire-line networks and TSN is ...

Dynamic Multicast Distribution Trees for mmWave Wireless Mesh Network (WMN) Backhaul

  • Seppaenen K.
  • Wainio P.

Network densification as well as new higher fre- quencies are seen as a solution to meet the capacity promises of 5G. However, this will mean much more frequent handovers and thus challenges for mobility management (MM). New MM schemes are being developed to allow rapid transmission / access point (AP) ...

Ultra-Dense Networks: Is There a Limit to Spatial Spectrum Reuse?

  • Ding M.
  • Lin Z.
  • Lopez-Perez D.
  • Mao G.

The aggressive spatial spectrum reuse (SSR) by network densification using smaller cells has successfully driven the wireless communication industry onward in the past decades. In our future journey toward ultra-dense networks (UDNs), a fundamental question needs to be answered. Is there a limit to SSR? In other words, when we ...

Joint Link Adaptation and Scheduling for 5G Ultra-Reliable Low-Latency Communications

This paper presents solutions for efficient multiplexing of ultra-reliable low-latency communications (URLLC) and enhanced mobile broadband (eMBB) traffic on a shared channel. This scenario presents multiple challenges in terms of radio resource scheduling, link adaptation and inter-cell interference, which are identified and addressed throughout the paper. We propose a joint ...

3GPP C-V2X and IEEE 802.11p for Vehicle-to-Vehicle Communications in Highway Platooning Scenarios

  • Bakowski K.
  • David Lister
  • Garcia I.
  • Ilaria Thibault
  • Krzysztof Wesolowski
  • Michal Sybis
  • Patrick Marsch
  • Pawel Sroka
  • Vukadinovic V.
  • Xu H.

The focus of this study is the performance of high-density truck platooning achieved with different wireless technologies for vehicle-to-vehicle (V2V) communications. Platooning brings advantages such as lower fuel consumption and better traffic efficiency, which are maximized when the inter-vehicle spacing can be steadily maintained at a feasible minimum. This can ...

Dynamic Load Balancing with Tokens

  • Comte C.

The assignment of jobs to servers in a computer cluster is subject to many practical constraints like data locality. This brings the need for simple load balancing schemes that capture these constraints in the assignment decision. In this paper, we propose a token-based mechanism that balances load without requiring an ...

Radiated Immunity Field Uniformity Enhancement Techniques for milli-meter Wave Frequencies

  • Moongilan D.

Milli-meter wave frequencies will be used extensively in 5G wireless communication and IOT network devices. These devices could be exposed to high electromagnetic fields and must be hardened to operate and coexist in their intended electromagnetic environments, and be protected from interference and sabotage. Most of these devices would be ...

Silicon Photonics Enabled Hyper-wideband RF Receiver With > 85% Instantaneous Bandwidth

IEEE We demonstrate the first-ever silicon photonics enabled hyper-wideband RF spread-spectrum link. A hybrid III/V-silicon photonic mode-locked laser encoded with a four-channel silicon photonic phase encoder is used to generate optical carriers that coherently demodulate a received RF signal spanning an instantaneous bandwidth greater than 85% of the center frequency ...

Triple-clad photonic lanterns for mode scaling

© 2018 Optical Society of America We propose a novel triple-clad photonic lanterns for mode scaling. This novel structure alleviates the adiabatic tapering requirement for the fabrication of large photonic lanterns. A 10-mode photonic lantern with insertion losses ranging from 0.6 to 2.0 dB across all the modes and a ...

Modelling packet insertion on a WSADM ring

  • Amar D.
  • Chiaroni D.
  • Gravey A.
  • Gravey P.
  • Morvan M.
  • Uscumlic B.

The WDM slotted Add/Drop Multiplexer (WSADM) technology relies on time slotted WDM rings, where a slot can carry a single WDM packet. All stations can insert and receive these WDM packets. This differs from previous architectures in which packets were carried over a single wavelength, while multiple packets could be ...