BENCHMARK NUMERICAL SIMULATIONS OF SOLAR THERMOELECTRIC GENERATORS

  • Enright R.
  • Frizzell R.
  • Lei S.

In this paper, to simplify the design and optimization of thermoelectric generators (TEGs), a three-dimensional numerical model is implemented in a computational finite element simulation environment (COMSOL). The model can take into consideration the Peltier effect, Thomson effect and Seebeck effect inherent to TEGs. In terms of a p-element TEG, ...

Filter Optimization for Carrier Frequency and Timing Offsets in Universal Filtered Multi-Carrier System

  • Schaich F.
  • Wang X.
  • Wild T.

Universal Filtered Multi-Carrier (UFMC) is a novel modulation technique which can be seen as a generalization of filtered OFDM and filter bank based multi-carrier (FBMCFMT). Being a candidate waveform technology for 5G wireless systems it combines the simplicity of OFDM with the advantages of FBMC. The FIR-filter, used in UFMC ...

Hybrid III-V on Silicon lasers for photonic integrated circuits on Silicon

  • Duan G.

Silicon photonics is attracting large attention due to the promise of fabricating low-cost, compact circuits that integrate photonic and microelectronic elements. It can address a wide range of applications from short distance data communication to long haul optical transmission. Today, practical Si-based light sources are still missing, despite the recent ...

Pilot Contamination Postcoding in Large Scale Antenna Systems

  • Adhikary A.
  • Ashikhmin A.
  • Marzetta T.

This talk is to uplink communication in multi-cell multi-user LSASs (massive MIMO wireless system). We proposed a new approach for a limited cooperation between base stations in the network. We call it pilot contamination postcoding (PCP). Next we developed an algorithm for funding optimal PCP matrices for global PCP. In ...

INVESTIGATION OF THERMOSYPHON PERFORMANCE WITH CHANGING ADIABATIC SECTION GEOMETRY

  • Kempers R.
  • Robinson A.
  • Siedel S.
  • Smith K.

In certain applications geometric constraints may make it impractical to use a straight thermosyphon. This paper aims to characterize the performance of a counter-flow thermosyphon with varying bend angles in the adiabatic section and a range of fluid loadings. The results of this study demonstrate that adequate levels of heat ...

Handbook on optimization, learning, operation and cooperation methods

  • Ewe L.
  • Gruber M.

This deliverable concludes the work of the work package “Network Empowerment” with a quantitative comparison of a selection of methods, complemented by a qualitative, handbook-like conclusion on a reasonable classification of methods and recommendations on their suitability for telecom-relevant problems. The work package had originally been designed to capture three ...

Devices applications of hybrid 3-5 on Silicon integration

  • Accard A.
  • De Valicourt G.
  • Duan G.
  • Girard N.
  • Kaspar P.
  • Le Liepvre A.
  • Levaufre G.
  • Make D.

Recent progresses on hybrid integration of III-V on Silicon devices using a wafer bonding technique are presented as well as their applications for next generation of access, metropolitan and long haul networks

In-Network Quality Optimization for Adaptive Video Streaming Services

  • Bouten N.
  • De Turck F.
  • Famaey J.
  • Latre S.
  • Van Leekwijck W.

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Automatic Learning of Anonymization Functions for Graphs and Dynamic Graphs

  • Maag M.

Data privacy is a major problem that has to be considered before releasing datasets to the public or even to a partner company that would compute statistics or make a deep analysis of these data. Privacy is insured by performing data anonymization as required by legislation. In this context, many ...

3GPP ACLR measurements for Millimeter-Wave Wireless Backhaul Link with Self-Heterodyning Mixing

  • Ferling D.
  • Luz G.
  • Maier S.
  • Pascht A.
  • Schlesinger H.
  • Woerner S.
  • Yu X.

This paper analyzes the signal quality achievable with a novel system architecture for low-power small cell remote units with integrated millimeter-wave wireless backhaul. The data signal on the backhaul link uses the same 3GPP compliant signal as with the access link serving the users. In contrast to existing systems, the ...

Microfluidic Cooling of Photonic Integrated Circuits (PICS)

  • Blythman R.
  • Donnelly B.
  • Ehrlich L.
  • Enright R.
  • Hernon D.
  • Jeffers N.
  • Nolan K.
  • O'Connor J.
  • Punch J.
  • Sexton A.
  • Stafford J.
  • Waddell A.

It is widely believed that the current telecommunications network is required to grow by more than 10X in the coming years to satisfy the demands placed on it by an increasing number of connected devices, in particular content streaming to mobile devices. To enable this growth, significant enhancement in the ...

5G MM-Wave Communications -- Potential & Risks

  • Braun V.

Slideset for German Bell Labs Future X Day, 20-Nov-2014

Real-time implementation of high-speed digital coherent transceivers

  • Pfau T.

The real-time implementation of digital coherent receivers for 100 Gbit/s data rates and beyond pushes the limits of all the technologies involved. Digital-to-analog and analog-to-digital converters with ultra-high sampling rates need to be co-integrated with a large scale digital signal processing (DSP) engine, and highly sophisticated algorithms have to be ...

Globally Convergent Algorithms for Blind Source Separation

  • Papadias C.

We present a nobel class of adaptive algorithms for the blind separataion of non-Gaussian mutually independent source signals that can be modeled as independent identically distributed (i.i.d) discrete random processes. The signals are assumed to be transmitted through a m x p narrow-band (instantaneous linear mixture) channel. The original algorithm, ...

XStream: a Functional Language for Distributed Stream Processing in the Edge Cloud

  • Cortes M.
  • Dobbelaere P.
  • Hoste L.
  • Philips E.
  • Roelands M.
  • Sheykh Esmaili K.
  • Trappeniers L.
  • Van Cutsem T.
  • Van Raemdonck W.
  • Verdot V.

Internet of Things (IoT) data and video traffic is forecasted to explode within the coming decade. Characteristic of such streams is that they are highly context-dependent and rarely consumed by humans. Traditional "big data" architectures are a bad fit for intelligently processing this large variety of streams as they usually ...

A Novel PCS Lane Management Mechanism For High-Speed Ethernet

  • Chen Y.
  • Liu D.

In high-speed Ethernet such as 40G/100G Base-R, multiple PCS lanes are used usually to transport data. When any lane cannot be synchronized or aligned, traffic will be broken and this greatly wastes datawidth. A Novel PCS Lane Management Mechanism For High-Speed Ethernet is presented here. This mechanism can ensure data ...

reCloud: Towards Reliable Application Deployment in Cloud

  • Akkus I.
  • Chen R.
  • Hilt V.
  • Viswanath B.

We propose reCloud (dubbed for reliable cloud), a novel cloud reliability framework. It incorporates any pieces of dependency information about a data center that is available to the cloud provider. Such information includes, for instance, the configuration and the states of the hosts, switches, power supplies and cooling systems, as ...

Polarization effects in nonlinearity compensated links

  • Awwad E.
  • Charlet G.
  • Fernandez De Jauregui Ruiz I.
  • Ghazisaeidi A.
  • Tran P.

We experimentally assess the impact of PDL and PMD on the performance of nonlinear compensation algorithms in dispersion unmanaged links. We show that PDL significantly degrades algorithm gains and increase gain fluctuations, while PMD has only a small impact.

Transmission of Waveforms Determined by 7 Eigenvalues with PSK-Modulated Spectral Amplitudes

  • Aref V.
  • Buelow H.
  • Idler W.

Eigenvalues of a 2-ns waveform and their PSK-modulated spectral amplitudes were optimized by taking constraints of link, transmitter, and receiver into account. These signals were generated and transmitted over 576-km of NZ-DSF fiber spans with 2E-4 SER.

Embedded In-Band DQPSK Signaling within n-QAM Data Transmission

  • Buchali F.
  • Dischler R.
  • Schmalen L.

We propose embedded short sequences of DQPSK-symbols within a n-QAM data stream for independent signaling on transponder level. In experiment we demonstrate a simplified processing chain obtaining a BER margin of factor 10 vs. data BER.