Remotely and Automatically Identify Long-Shining Rogue ONU in PON System

  • Chang Q.
  • Gao Z.
  • Sun X.
  • Xiao S.
  • Ye C.
  • Zhang K.

This paper proposed a cost-effective solution for remotely and automatically identifying long-shining rogue ONU in PON system based on low-frequency RF pilot tone signal from the ONU transmitter.

Extending Cut-and-Choose Oblivious Transfer

  • Kolesnikov V.
  • Kumaresan R.

Motivated by the recent rapid progress in improving efficiency of secure computation, we study cut-and-choose oblivious transfer - a basic building block of state-of-the-art constant round two-party secure computation protocols. In particular, we study the question of realizing cut-and-choose oblivious transfer and its variants in an OT-hybrid model. Towards this, ...

Few-Mode Optical Amplifier for LP01, LP11, LP21 and LP02 Mode Groups

  • Bigot L.
  • Charlet G.
  • Denolle B.
  • Genevaux P.
  • Jian P.
  • Labroille G.
  • Le Cocq G.
  • Morizur J.
  • Pinel O.
  • Quiquempois Y.
  • Simonneau C.

We report and fully characterize an optical amplifier capable of six-mode amplification, with erbium concentration profile adjusted for low gain excursion across the modes. We also measure Q²- factor after our amplifier for several input configurations.

6-mode Spatial Multiplexer with low loss and high selectivity for transmission over Few Mode Fiber

  • Charlet G.
  • Denolle B.
  • Genevaux P.
  • Jian P.
  • Labroille G.
  • Morizur J.
  • Pinel O.
  • Simonneau C.

We present a spatial mode multiplexer for 6 LP modes with low loss and high mode selectivity. We demonstrate 100 Gbit/s error-free transmission over 20 km for 6 modes and over 40 km bi-directional transmission with 3 modes in each direction.

Why we need a new air interface for 5G

  • Berna S.
  • Schaich F.
  • Schubert M.

Wireless communications has been renewed about every decade since the introduction of 2G (GSM - Global System for Mobile Communications [1]) - the first digital wireless communication system. Around 1990 GSM became widespread and offered voice services around the globe. With the rising success of the world wide web the ...

ELECTRIC-FIELD-ENHANCED JUMPING-DROPLET CONDENSATION

  • Enright R.
  • Miljkovic N.
  • Preston D.
  • Wang E.

When condensed droplets coalesce on a superhydrophobic nanostructured surface, the resulting droplet can jump due to the conversion of excess surface energy into kinetic energy. This phenomenon has been shown to enhance condensation heat transfer by up to 30% compared to state-of-the-art dropwise condensing surfaces. However, after the droplets jump ...

Vectoring and G.fast the ultra-broadband access technology for copper

  • Dai L.
  • Li M.
  • Lv X.

Abstract: Under the background of replacement of copper cables with optical fiber, it is beneficial for operators to fully make use of the existing copper cables for ultra-broadband access, with low construction cost and smooth evolution. This paper describes the principle of Vectoring and the performance improvement to VDSL2, as ...

Battling Googost, the Bandwidth-Stealing Bot

  • Mcnamee K.

Service providers build their businesses around their networks. Eliminating bandwidth-stealing bots such as Googost and NotCompatible , a similar web proxy bot that infects Android™ phones, is key to keeping network performance and customer satisfaction high.

Insight-Driven IMS/NFV Service Orchestration

  • Jul E.
  • Sienel J.

We describe a demonstrator showing dynamic scaling of an IMS NFVs in a cloud infrastructure based on analysis of system and application metrics. The document is a minor update of the contribution for the booklet, published in context of th BL FutureX day 2014 in Stuttgart

Network-based Video Freeze Detection/Prediction in HTTP Adaptive Streaming

  • Bostoen T.
  • Huysegems R.
  • Petrangeli S.
  • Wu T.

With the popularity of HTTP adaptive streaming technology for media delivery technology over mobile and fixed networks, the clients Quality of Experience for HAS video sessions is particularly of interests in network providers and Content Delivery Network providers. But typically, network providers are not able to directly obtain QoE relevant ...

Anticipatory resource allocation in wireless networks

  • Malanchini I.

Anticipatory resource allocation in wireless networks, presentation for the "47. meeting of the VDE/ITG-Fachgruppe 5.2.4"

ACT-5G project

  • Malanchini I.

The poster will be used during the student day at Future X Day event in Stuttgart to advertise a granted European project that will fund four Ph.D. students. The Ph.D. students will spend half of their time in ALU Stuttgart.

Context-Aware Radio Access - Smarter Networks for 5G

  • Kuehn E.
  • Malanchini I.

5G network optimization will be driven by the user-centric paradigm. Users have different demands on the radio network depending on where they are, which device they use, and which service they currently need. The network should adapt to user requirements rather than forcing the user to adapt to the network.

Infinite Factorial Finite State Machine for Blind Multiuser Channel Estimation

  • Perez-Cruz F.
  • Ruiz F.
  • Svensson L.
  • Valera I.

New communication standards need to deal with machine-to-machine communications, in which users may start or stop transmitting at any time in an asynchronous manner. Thus, the number of users is an unknown and time-varying parameter that needs to be accurately estimated in order to properly recover the symbols transmitted by ...

Infinite Factorial Dynamical Model

  • Perez-Cruz F.
  • Ruiz F.
  • Svensson L.
  • Valera I.

We propose the infinite factorial dynamic model (iFDM), a general Bayesian nonparametric model for source separation. Our model builds on the Markov Indian buffet process to consider a potentially unbounded number of hidden Markov chains (sources) that evolve independently according to some dynamics, in which the state space can be ...

Expectation Propagation Soft-Inference for Large Scale MIMO Turbo Receivers

  • Cespedes J.
  • Olmos P.
  • Perez-Cruz F.
  • Sanchez-Fernandez M.

Modern communications systems use efficient encoding schemes, multiple-input multiple-output (MIMO) and high-order QAM constellations for maximizing spectral efficiency. However, as the dimensions of the system grow, the design of efficient and low-complexity MIMO receivers possesses technical challenges. Symbol detection can no longer rely on conventional approaches for posterior probability computation ...

A BAYESIAN NONPARAMETRIC APPROACH FOR BLIND MULTIUSER CHANNEL ESTIMATION

  • Perez-Cruz F.
  • Ruiz J.
  • Svensson L.
  • Valera I.

In many modern multiuser communication systems, users are allowed to enter and leave the system at any given time. Thus, the number of active users is an unknown and time-varying parameter, and the performance of the system depends on how accurately this parameter is estimated over time. We address the ...

Bayesian Nonparametrics for Marathon Modeling

  • Perez-Cruz F.
  • Pradier M.
  • Ruiz F.

Bayesian nonparametric (BNP) models present several desirable properties. Their most recognizable benefit is the ability of avoiding the need to specify a closed model and letting the data choose the model (or models) that describe it best, in order to provide competitive predictions [6]. In this paper, we focus instead ...

Novel bitloading algorithms for coded G.fast DSL transmission with linear and nonlinear precoding

  • Bastos Moraes Rodrigo
  • Coomans W.
  • Guenach M.
  • Julie N.
  • Maes J.
  • Marc M.
  • Tsiaflakis P.

Precoding is a technique that counteracts the crosstalk in downlink DSL transmission. While linear precoding is adequate in VDSL2 because of the moderate crosstalk environment, this might no longer be the case in G.fast, which uses higher frequencies and therefore is affected by higher crosstalk levels. In this contribution we ...

Analysis of pre-equalized multilevel partial response schemes for high-speed electrical interconnects

  • Guenach M.
  • Jacobs L.
  • Kozicki B.
  • Moeneclaey M.

In this paper we complement the overview of the basic baseband modulation in high-speed electrical interconnects by a detailed analysis of the equalization. We present a mathematical framework for the equalization and elaborate on different equalization aspects. We discuss the interplay between the choice of modulation and the equalization on ...