Statistical multiplexing of distributed video streams

  • Changuel N.
  • Kieffer M.
  • Sayadi B.

­ We consider a media aware network element (MANE) fed by several remote video servers. The role of the MANE is to bufferize the encoded video contents and to build a multiplex containing all video programs to be broadcasted or multicasted over a wireless link. We design a decentralized control ...

Gestures for Natural Interaction with Video

  • Fourati N.
  • Marilly E.

There is a clear trend to change the current mode of telecommunication toward Immersive Communications. Immersive Communication means that users want to communicate, interact, share and collaborate at distance using sensorial and attentional immersions. As described in [1], the willingness to change the current mode of telecommunication comes from Immersive ...

Fast Dynamic Multiple Set Membership Testing Using Combinatorial Bloom Filters

  • Hao F.
  • Kodialam M.
  • Lakshman T.
  • Song H.

In this paper we consider the problem of designing a data structure that can perform fast multiple set membership testing in deterministic time. Our primary goal is to develop a hardware implementation of the data structure which uses only embedded memory blocks. Prior efforts to solve this problem involve hashing ...

Common Patterns in the Dimensioning of Packet and Circuit Switching

  • Lautenschlaeger W.

This paper is an analysis of the mutual dependencies between network dimensioning, service quality, and sustainable commercial performance. We start with an abstract communication model, show the role of application stream collisions as root cause of congestion effects, and derive thereof performance expectations of different networking technologies.

MIMO Communication for Cellular Networks

  • Huang H.
  • Venkatesan S.

1.1 Overview of MIMO fundamentals; 1.1.1 MIMO channel models; 1.1.2 Single-user capacity metrics; 1.1.3 Multiuser capacity metrics; 1.1.4 MIMO performance gains; 1.2 Overview of cellular networks; 1.2.1 System characteristics; 1.2.2 Co-channel interference; 1.3 Overview of the book; Single-user MIMO; 2.1 Channel model; 2.1.1 Analytical channel models; 2.1.2 Physical channel models; ...

Compressed Transport of Baseband Signals in Radio Access Networks

  • Macdonald M.
  • Pastalan J.
  • Samardzija D.
  • Valenzuela R.
  • Walker S.

In current wireless base station architectures it is becoming common to physically separate baseband units and radio subsystems. In many wireless technologies this architecture requires allocation of significant transport network resources. In this paper a low-latency baseband signal compression scheme is presented. It significantly lowers transport data rates, resulting in ...

Synthesis of use case requirements - Release 1

  • Gruber M.
  • Univerself Partners

2 Stakes for the telecommunication industry 2.1 Network operators and service providers viewpoint Solution providers viewpoint 2.2 Biz opportunities and bottlenecks 2.2.1 2.2.2 Business Opportunities Business Bottlenecks Definitions of requirements Requirements characteristics Requirements process

Grooved-Dielectric Fresnel Zone Plate

  • Grote W.
  • Hristov H.
  • Moeller L.
  • Rodríguez J.

Transmission Optique Multiplexée en Mode à 2x100Gb/s sur 40km de Fibre Prototype Légèrement Multimodale

  • Bigo S.
  • Charlet G.
  • Koebele C.
  • Salsi M.
  • Sperti D.

Les systèmes optiques déployés actuellement utilisent la détection cohérente pour les débits de 40Gbit/s et 100Gbit/s. Une modulation QPSK (pour « Quadrature Phase Shift Keying »), c'est à dire avec 4 niveaux de phase, associée à un multiplexage de polarisation (« PDM » pour « Polarization Division Multiplexing ») permet ...

Test Scenarios and Validation Capabilities (in EARTH Project)

  • Aykut Erdem P.
  • Bjorn Debaillie V.
  • Ferling D.
  • Laurent Dussopt A.
  • Manuel J Gonzalez (Tti)
  • William Tomaselli D.

This document presents the way to validate solutions proposed for increasing the energy efficiency in mobile radio systems. The validation shall be done by concept evaluations in a radio network test plant, supplementing the investigations of the work packages "Green Networks" and "Green Radios". Potential test scenarios are defined for ...

Modeling Physical-Layer Impairments in Multi-domain Optical Networks

  • Gonzalez O.
  • Jimenez J.
  • Marn-Tordera E.
  • Masip-Bruin X.
  • Serral-Gracia R.
  • Verchere D.
  • Verchere D.
  • Yannuzzi M.

The advantages of optical transparency are still confined to the boundaries of a domain, since the optical signals are subject to O/E/O conversions at the border nodes that separate two optical domains. The extension of transparent connections across domains requires advances both in the modeling of the impairments suffered by ...

Coded Modulation of Polarization- and Space-Multiplexed Signals

  • Abay U.
  • Buelow H.

In the following we investigate the optimization of constellations for polarization division multiplexed systems in standard single-mode fiber and for space division multiplexing in a multi-mode fiber and discusses appropriate hard- and soft-decision coding.

Proposed Architecture for MIMO Optical Demultiplexing Using Photonic Integration

  • Doerr C.

This paper proposes and simulates a novel structure for optical demultiplexing of optical multiple-input-multiple-output (MIMO) systems. Such a structure obviates the need for electronic digital signal processing in low-dispersion links, potentially saving significant power consumption. It has the minimum number of required analog control elements for nonunitary MIMO demultiplexing.

Simultaneous Transmission of Non-Contiguous Frequency Bands using a Pulse-Width-Modulated Switch-Mode Stage

  • Maier S.
  • Pascht A.
  • Seyfried U.
  • Wiegner D.
  • Zierdt M.

The following paper demonstrates the capability to support simultaneous transmission of non-contiguous frequency bands for the pulse-width-modulator and a single switch-mode stage with two signals spaced 1GHz apart, each of them meeting the 3GPP ACLR requirements. We use a fast PWM to convert the analog signal to a digital signal ...

Iterative Source-Channel Decoding with Delay Constraints

  • Adrat M.
  • Clevorn T.
  • Schmalen L.
  • Vary P.

Iterative source-channel decoding (ISCD) exploits the residual redundancy of source codec parameters by using the Turbo principle. In most practical implementations of ISCD a delay constraint prohibits the utilization of future frames required for optimal soft decision source decoding if correlation between successive frames is exploited. In this letter we ...

Media Processing in the Future Internet

  • Bauer M.
  • Braun S.
  • Domschitz P.

Feed-forward neural network for analog impairment mitigation in high power RF transceiver systems

  • Brendel J.
  • Fischer G.
  • Jueschke P.
  • Pascht A.

Mobile communication systems are getting more and more complex. Constantly rising capacity of the systems as well as the general demand to reduce the power consumption to get the systems greener are a big challenge for especially for the transceiver and radio systems. The more complex modulated signals of mobile ...

Long-Haul WDM Transmission of 400-Gb/s Polarization-Division-Multiplexed 16-ary Quadrature-Amplitude-Modulation using Coherent Detection

  • Bertran-Pardo O.
  • Bigo S.
  • Buchali F.
  • Charlet G.
  • Idler W.
  • Mardoyan H.
  • Renaudier J.
  • Schuh K.
  • Tran P.

As the deployment of 100-Gb/s transmission systems in optical networks has been in progress for one year, optical transport of per-channel bit rates beyond 100-Gb/s is now under active research to sustain future traffic growth in optical fiber communications [1]. Coherent systems using 16-ary quadrature amplitude modulation (QAM) formats together ...

High-Power Linear Balanced InP Photodetectors for Coherent Analog Optical Links

  • Chen Y.
  • Frackoviak J.
  • Houtsma V.
  • Hu T.
  • Kopf R.
  • Reyes R.
  • Tate A.
  • Weimann N.
  • Zhang L.

High-power handling photo-detectors with large bandwidths and high linearity have become critical components for analog optical links with high dynamic range [1,2]. Recently, a coherent analog link has been proposed for increased link linearity by producing amplitude modulation based on the optical field rather than intensity [3]. We report on ...