Galerkin-Legendre spectral schemes for nonlinear space fractional Schrödinger equation

  • Fan W.
  • Jiang X.
  • Wang C.
  • Zhang H.

© 2017, Springer Science+Business Media, LLC, part of Springer Nature. In the paper, we first propose a Crank-Nicolson Galerkin-Legendre (CN-GL) spectral scheme for the one-dimensional nonlinear space fractional Schrödinger equation. Convergence with spectral accuracy is proved for the spectral approximation. Further, a Crank-Nicolson ADI Galerkin-Legendre spectral method for the two-dimensional ...

Temporal Filter Parameters for Motion Pattern Maps

  • O'Gorman L.

There are many video analysis applications in which the flow of people or traffic over time is of more interest than tracking the discrete objects contained. Motion pattern maps, loosely called heat maps, can show accumulated activity over time via temporal filtering. In this paper, we examine three parameters that ...

vNS: a modular programmable virtual network switch

  • Gallo M.
  • Pianese F.

Virtual software switches are evolving: from simple communication facilities connecting virtual machines to the outside network, they are growing into complex subsystems supporting an increasing number of functionalities at multiple network layers. In line with recent trends introducing stateless and stateful processing in virtual switches, we present in this poster ...

Saccadic eye movements estimate prolonged time awake

This study describes for the first time that the length of overall time awake of a person can be estimated by analysing eye movements that have been measured with electro-oculography in a saccade task repeatedly up till 54 hours. Fatigue and fluctuation of vigilance is one of the main causes ...

NOKIA Bell Labs & ION demonstrate ODTN phase 1.0 at Telefónica Lab

  • Atkinson G.
  • Pham Van Q.
  • Tancevski L.
  • Thottan M.
  • Verchere D.

NOKIA Bell Labs and ION realized and demonstrated with Telefónica at Telefonica Lab ODTN project phase 1.0 realization involving the configuration and control of NOKIA transponders with the capabilities of OpenConfig/NETCONF agent and with ONOS Controller integrating NOKIA device NETCONF drivers at its South Bound Interface and Transport API (TAPI) ...

Effect of mutual coupling between feed elements on integrated lens antenna performance

  • Ala-Laurinaho J.
  • Karki S.
  • Valkonen R.
  • Viikari V.

An integrated lens antenna (ILA) equipped with a beam-switching array feed provides beam-steering. This study investigates the effects of the mutual coupling between the feed array elements on the ILA performance. A simulation study of an ILA with two different feed types with varying mutual coupling levels is done. Radiation ...

End-to-end Deep Learning of Optical Fiber Communications

  • Buelow H.
  • Chagnon M.
  • Domanic Lavery
  • Felix Thouin
  • Karanov B.
  • Polina Bayvel
  • Schmalen L.
  • Tobias A. Eriksson

We implement the optical fiber communication system as an end-to-end deep neural network, which includes the complete chain of transmitter, receiver and channel. This approach allows transceiver functions to be optimized in a single end-to-end process. Our work shows that such a deep learning fiber-optic system can achieve reliable communication ...

Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations

  • Erkkila J.
  • Heikkila J.
  • Heikkila M.
  • Kippola T.
  • Koskela M.
  • Kupiainen T.
  • Migliore M.
  • Nykanen A.
  • Saukkonen R.
  • Tervonen J.

IEEE This paper has two main objectives. First, it describes the practical challenges of field trials and proposes a developed test method. Second, the test method is used to compare the uplink (UL) performance with different antenna technologies when user equipment (UE) does not have a line of sight (LOS) ...

Spectrum Allocation with Flexible Frame Structure

  • Di Yuan
  • Liao Q.
  • Nikolaos Pappas
  • You Lei

This paper explores the potential of allocating spectrum resource under flexible frame structure for accommodating services with different types of requirements. Computational complexity is rigorously analyzed. A scalable algorithm is proposed based on searching in both primal space and dual space, which are shown to be complementary to each other ...

Phase-sensitive amplifier link with distributed Raman amplification

  • Andrekson P.
  • Astra E.
  • Benjamin F.
  • Eliasson H.
  • Karlsson M.
  • Olsson S.
  • Vijayan K.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement We demonstrate long-haul transmission using a hybrid amplifier approach combining distributed Raman amplification and lumped phase-sensitive amplification. Aside from the well-known resulting SNR improvement, distributed Raman amplification is included in an effort to improve ...

Effect of Backhaul Constraints on Uplink Femtocell Networks

  • Jalali S.
  • Poor V.
  • Zeinalpour-Yazdi Z.

IEEE One promising approach to expand the coverage and enhance the performance of cellular networks is to employ multi-tier cellular networks. In this paper, an uplink two-tier communication network is studied, in which macro users, femto users and femto access points are geometrically located inside the coverage area of a ...

Forced convection in the wakes of impacting and sliding bubbles

  • Donnelly B.
  • Murray D.
  • Nolan K.
  • O'Reilly Meehan R.
  • Persoons T.
  • Williams N.

Both vapour and gas bubbles are known to significantly increase heat transfer rates between a heated surface and the surrounding fluid, even with no phase change. The cooling structures observed are highly temporal, intricate and complex, with a full description of the surface cooling phenomena not yet available. The current ...

Guest Editorial: Optical Networks Supporting Interoperability and White Boxes

  • Bigo S.
  • Sambo N.
  • Schmidtke H.
  • Shaikh A.
  • Suzuki M.
  • Tomkos I.

Preface to the Special Issue on Data Center Communications

  • Earnshaw M.
  • Li M.
  • Petropoulos P.
  • Vusirikala V.

Fast flow volume estimation

  • Ben Basat R.
  • Einziger G.
  • Friedman R.

The increasing popularity of jumbo frames means growing variance in the size of packets transmitted in modern networks. Consequently, network monitoring tools must maintain explicit traffic volume statistics rather than settle for packet counting as before. We present constant time algorithms for volume estimations in streams and sliding windows, which ...

Parametric analysis of laminar pulsating flow in a rectangular channel

  • Alimohammadi S.
  • Blythman R.
  • Jeffers N.
  • Murray D.
  • Persoons T.

Pulsating flow has potential for enhanced cooling of future electronics and photonics systems. To better understand the mechanisms underlying any heat transfer enhancement, it is necessary to decouple the mechanical and thermal problems. The current work performs a parametric analysis of the flow hydrodynamics using particle image velocimetry (PIV) measurements, ...

Guest Editorial Special Issue on Emerging Social Internet of Things: Recent Advances and Applications

  • Bhattacharya S.
  • Bhuiyan M.
  • Fortino G.
  • Goscinski A.
  • Hassan M.
  • Li J.
  • Zhou M.

The concept of Social Internet of Things (SIoT) has emerged from the integration of social networking into the core of the Internet of Things (IoT). It envisions IoT objects and devices to have social interactions with each other autonomously, cooperate with other agents, and exchange information with human users and ...

High Bending-Mode Sensitivity of Printed Piezoelectric Poly(vinylidenefluoride- co-trifluoroethylene) Sensors

  • Krijnen G.
  • Rajala S.
  • Schouten M.
  • Tuukkanen S.

© Copyright 2018 American Chemical Society. Printable piezoelectric sensors were fabricated on a flexible polyethylene terephthalate (PET) substrate. Solution-processed piezoelectric poly(vinylidenefluoride-co-trifluoroethylene) ink was used as an active layer. Evaporated silver on PET was used as the bottom electrode and the painted silver glue as the top electrode. The sensors were ...

Ultrafast Spontaneous Emission from a Slot-Antenna Coupled WSe<inf>2</inf>Monolayer

  • Desai S.
  • Eggleston M.
  • Fortuna S.
  • Javey A.
  • Madhvapathy S.
  • Messer K.
  • Wu M.
  • Xiao J.
  • Yablonovitch E.
  • Zhang X.

Optical antennas can enhance the spontaneous emission rate from nanoemitters by orders of magnitude, enabling the possibility of an ultrafast, efficient, nanoscale LED. Semiconductors would be the preferred material for such a device to allow for direct high-speed modulation. However, efficient nanoscale devices are challenging to implement because of high ...

Variations of Heart Rate, Pulse Arrival Time and Blood Pressure in a Versatile Laboratory Protocol

  • Ahmaniemi T.
  • Kiti Müller
  • Lindholm H.
  • Rajala S.
  • Taipalus T.

Many studies dealing with blood pressure modeling are evaluated based on a single type of provocation. This paper investigates widely used provocations such as controlled breathing, mental arithmetic and Stroop tests, Valsalva maneuver, cold pressor and muscle tension and combines them in a versatile laboratory protocol. The protocol was tested ...