On Machine Learning for Cloud Resource Management

  • Cello M.
  • Lugones D.

The dynamicity and heterogeneity of cloud resources require significant expertise and manual labour to properly configure these resources for delivering acceptable quality of service levels to the end users. Cloud resource configuration and orchestration is, in facts, challenging because it requires dynamic coordination across different infrastructure layers. For this reason, ...

Single Carrier, Single Polarization 168 Gb/s PAM8 over 80 km below HD-FEC for Data Center Interconnects

  • Buchali F.
  • Buelow H.
  • Chagnon M.
  • Eriksson T.
  • Stephan Ten Brink

We demonstrate the first single carrier, single polarization PAM8 Intensity Modulation Direct Detection system delivering 168 Gb/s over 80km of SMF below the Hard-Decision FEC threshold of 3.8×10-3, with a receiver processing relying only on a 3-tap FFE

Multi-Chain Signal Generation for MIMO Transceivers

  • Ferling D.

This document represents one section for a chapter in the book "5G Networks - an European vision". It presents work done within the 5GPPP-H2020 project Flex5Gware funded by the European Commission. It deals with the generation of modulated RF signals for MIMO base stations as one-bit DSM and PWM modulated ...

Base Station Transceivers for Multiband Operation

  • Ferling D.

This document represents a section for a chapter in the book "European Vision book on 5G networks". It presents work done within the H2020 5GPPP project Flex5Gware funded by the European Commission. It deals with multiband solutions for mobile base stations up to 6 GHz carrier frequency with the focus ...

SDN-controlled traffic management in optical packet switching network for datacenter (preliminary paper version)

  • Dallaglio Mateo
  • Dupas A.
  • Dutisseuil E.
  • Estaran Tolosa J.
  • Mardoyan H.
  • Pham Van Q.
  • Pointurier Y.
  • Uscumlic B.

In this paper, we present an implementation of a Software-Defined Network (SDN) approach enabling dynamic management of traffic that guarantees Quality-of-Service (QoS) such as on-demand high bandwidth/capacity and latency control in all-optical intra-datacenter network. We evaluate the network management on an experimental test-bed.

Block-wise Lensless Compressive Camera

  • Huang G.
  • Jiang H.
  • Wilford P.
  • Yuan X.

The existing lensless compressive camera (L2C2) suffers from low capture rates, which also results in low resolution images desired in a short time. In this work, we propose a new regime to mitigate these drawbacks. We replace the global-based compressive sensing used in the existing L2C2 by the local block ...

On Pulse Duration, Bandwidth and Spectral Efficiency of Second and Third Order Soliton Pulses

  • Aref V.
  • Buelow H.
  • Span A.
  • Ten Brink S.

The limit of spectral efficiency is derived numerically for second and third order soliton pulses considering phase modulation of the spectral amplitudes. The optimum pulse to achieve the smallest time-bandwidth product is found by optimizing the eigenvalue locations and magnitudes of spectral amplitudes. This limit is approximated analytically by estimation ...

Efficiency of Cloud-Based Application Services - Parts I and II only

  • Bauer E.

Organizations deploy their applications on cloud computing to both deliver new services and value faster to their customers, and to improve their operational efficiency. This monograph develops a dynamic, time-driven, activity-based cost model of service production for cloud-based applications. To drive improvement in operational efficiency, this monograph develops a model ...

Compact Multi-band Digital Predistortion for RFDAC-based Single-chain Multi-band RF Transmitter

  • Guan L.
  • Wang Z.

Compact multi-band RF transmitter solution will play a unique role in the forthcoming 4G-beyond and 5G wireless networks. The emerging RF class data convertor, i.e., RFDAC enables a promising single-chain multi-band RF transmitter solution. In order to combat the imperfections of practical nonlinear power amplifiers in the single-chain multi-band RF ...

TYPHOON: An SDN Enhanced Real-Time Big Data Streaming Framework

  • Chang H.
  • Cho J.
  • Lakshman T.
  • Mukherjee S.
  • Van Der Merwe J.

Current big data streaming frameworks focus mainly on the scalability of real-time stream data processing, and are not flexible enough for dynamic reconfiguration of applications to deal with changes in the distribution and volume of data. To address these problems, we propose an SDN-based realtime big data framework, called Typhoon. ...

Compressive Sensing vs. JPEG: An End-to-End Comparison

  • Haimi-Cohen R.
  • Yuan X.

We present an end-to-end image compression system based on compressive sensing by adding measurement quantization and entropy coding to the conventional scheme of compressive sampling and reconstruction. The compression performance, in terms of data rate versus image quality, is shown to be on par with JPEG and significantly better at ...

Pilot Contamination is Not a Fundamental Asymptotic Limitation in Massive MIMO

  • Bjornson E.
  • Hoydis J.
  • Sanguinetti L.

Massive MIMO provides great improvements in spectral efficiency, by coherent combining over a large antenna array and by spatial multiplexing of many users. Since its inception, the coherent interference caused by pilot contamination has been believed to be an impairment that does not vanish, even with an unlimited number of ...

AidOps: A Data-Driven Management of NFV configurations

  • Arjona Aroca J.
  • Jin Y.
  • Lugones D.

NFV is expected to transform the way telecom operators deploy and manage their networks and services. Yet, network functions are usually deployed on expensive and proprietary appliances that require expertise for deployment and maintenance. In this paper we argue that technological advances in NFV need an equivalent evolution on resource-management ...

Field Trial Transmission of 1.5 Tb/s Superchannel over 875 km, with 250 Gb/s Real-Time Subcarriers and EDFA Amplification

  • Augé Jean-Luc
  • Dabrowski S.
  • Houmed Ibrahim
  • Jakubowski Z.
  • Klimas A.
  • Konopka W.
  • Lavigne B.
  • Le Monnier M.
  • Pulka F.
  • Zami T.

This record field trial transmits 1.5 Tb/s superchannel with 5 b/s/Hz spectral efficiency over 875km of EDFA-amplified SMF, using six 250 Gb/s real time transponders featuring 1 dB minimum Q margin. All channels are 50 GHz spaced.


  • Haimi-Cohen R.
  • Yuan X.

Variational Bayesian and Euclidean Projection for Sparse Signal Recovery

Dynamic Monitoring of Very Large Wireless Systems

  • Bejerano Y.
  • Infante H.
  • Raman C.
  • Young T.
  • Yu C.

Recently we observe a wide-spread penetration of mobile devices which has been enlarged with the adoption of {em Internet-of-Things} (IoT) technologies. Consequently monitoring, configuring and sending queries to the large groups of wireless devices become a major challenge since current schemes require each device to be contacted individually. Addressing this ...

Extreme Speed Power-DAC: Leveraging InP DHBT for Ultimate Capacity Single-Carrier Optical Transmissions

  • Dupuy J.
  • Jorge F.
  • Konczykowska A.
  • Nodjiadjim V.
  • Riet M.

Power-DAC circuits for high capacity and high spectral efficiency optical transmitters are presented in this paper. They are based on a 0.7-µm InP DHBT semiconductor process, of which main differentiating characteristics are highlighted. We introduce the Power-DAC circuit concept, its usual architectures, and we provide design details of its latest ...

A Millimeter-Wave InP DHBT Multi-finger Modeling Approach Using Electromagnetic Simulation and Nonlinear Thermal Coupling Network

  • Dupuy J.
  • Johansen T.
  • Konczykowska A.
  • Midili V.
  • Nodjiadjim V.
  • Riet M.
  • Squartecchia M.
  • Zhurbenko V.

large-signal modeling approach has been developed for multi-finger devices fabricated in an Indium Phosphide (InP) Double Heterojunction Bipolar Transistor (DHBT) process. The approach utilizes single-finger device models embedded in a multi-port distributed network. The single-finger model is based on an improved UCSD HBT model formulation avoiding an erroneous RciCbci transit-time ...

Frequency Drift Mitigation for TWDM-PON Burst Mode Lasers

  • Barbet S.
  • Bonk R.
  • Borkowski R.
  • Brenot R.
  • Debregeas H.
  • Pfeiffer T.
  • Provost J.

For emerging TWDM-PON systems, based on burst-mode operation over WDM channels, a main challenge is the laser self-heating during bursts. This effect creates a drift of the emission frequency, leading to degraded transmission performances, and perturbation of adjacent channels. We explain an accurate method for characterization of wavelength drift during ...

Optimal Configuration of Services in Network Function Virtualization

  • Arjona Aroca J.
  • Fu X.
  • Hilt V.
  • Koll D.
  • Omana Iglesias J.
  • Prasad A.

Optimal Configuration of Services in Network Function Virtualization