Hybrid III-V/Si widely tunable laser made by wafer bonding

  • Duan G.
  • Le Liepvre A.

This paper reports on hybrid III-V on silicon lasers, integrating one III-V active waveguide and two intra-cavity ring resonators. Such lasers are fabricated using a wafer bonding technique. By heating the two resonators, we achieve a thermal wavelength tuning range of 45 nm, with side mode suppression ratio higher than ...

Exploitation plans

  • Schaich F.

The document includes the exploitation plan of ALU regarding the outcomes produced in the EU project ACCORDANCE.

On the Achievable Bit Rates of DSL Vectoring Techniques in the Presence of Alien Crosstalkers

  • Guenach M.
  • Maes J.
  • Timmers M.

Different precoder and equalizer structures have been proposed in literature for vectored digital subscriber lines (DSLs). In this paper, we assess the relative merit of advanced complex precoders and equalizers in practical DSL scenarios. Using extensive computer simulations, the achievable bit rates are investigated in the presence of alien crosstalkers, ...

Research Directions in Smart Telecom Pricing

  • Andrews D.

Research Directions in Smart Telecom Pricing (ppt presentation)

Know Your Personalization: Learning Topic level Personalization in Online Services

  • Majumder A.
  • Shrivastava N.

Personalization is being used by majority of online ser- vices, such as search, advertising, social networking, shop- ping, news, etc., to lure users by giving better service ex- perience customized to their individual interests. A recent trend is to employ profile based personalization, where they build extensive profile for the ...

Confined Twitter Conversations

  • Cogan P.
  • Mashhadi A.
  • Sala A.

The rise in popularity of social media websites has transformed internet users from passive consumers to active producers of digital content; enabling internet users to share their personal stories, recommendations, and opinions with a larger audience. In recent years, many businesses have availed of this trend to learn more about ...

Applicability of Self-Organizing Principles to the Deployment and Operation of Heterogeneous Networks

  • Bakker H.
  • Klein S.

By means of system simulation, this paper identifies that self organizing principles are applicable to heterogeneous network deployments and further identifies requirements towards the respective algorithms in the context of the 3rd Generation Partnership Program’s (3GPP) Long Term Evolution (LTE)

When The Computing Cloud Meets The Energy Cloud

  • Bross J.
  • Ilchmann F.
  • Klotzsche T.

Employing cloud computing technology within the energy sector to control critical grid elements poses unusual challenges to e.g. questions of scalability, availability and operating safety, including the protection against cyber-attacks of all kinds. Functionalities that would be essential for business-critical applications with real-time characteristics are oftentimes missing in today’s commercial ...

Treatment of High Conductance Kondo Transport in Single Molecule Devices

  • Scott G.

A single molecule break junction device serves as a tunable model system for probing the many body Kondo state. There are predictions of universality across many realizations of the Kondo model in which the response of the system to different perturbations is characterized by a single emergent energy scale, k_BT_K. ...

OneFIT D5.3

  • Gebert J.

OneFIT Deliverable D5.3 describes the results of the validation activity of the demo/prototyping activities of the OneFIT Project on operator governed opportunistic networking.

Deliverable D5.4 Report on Trendsetting Activities Release 2

  • Ciavaglia L.
  • Ghamri-Doudane S.
  • Gruber M.
  • Ho L.

UniverSelf intends to become a trendsetter in the area of autonomic networking for future networks. To this end, the work package 5 of the project coordinates all the dissemination, promotion and standardisation activities aiming at ensuring a wide impact and take-up of the project's vision and outcomes. The present document ...

Deliverable D4.5 - Leaflet of the first prototype of a use-case

  • Ciavaglia L.
  • Gruber M.

Deliverable D4.5 accompanies Deliverable D4.4 ‘First Prototype of a Use-Case’. The role of D4.5 is to provide accompanying material for UniverSelf Prototype 1 entitled ‘Governance and coordination of autonomic wireless access (LTE/SON-compliant) and core network (MPLS-based) segments’, in terms of its context and implementation aspects, key results and findings. To ...

Reach-related Energy Consumption in IP-over-WDM 100G Translucent Networks

  • Morea A.

In this paper we investigate the power consumption of IP-over-WDM optical networks as a function of 100 Gb/s Transponders’ (TXPs) transmission reach when the “All-On and the “On-Off” planning approaches are considered. The former considers that transmission devices are kept always on and provides an upper bound to the network ...

A Distributed Signal Processing Strategy for Uplink Multi-point Coordination

  • Zhu X.

Coordinated multipoint (CoMP) communication has been extensively considered to address the problem of inter-cell interference in cellular network. For uplink, to increase the cell edge users' throughput and to enhance network throughput, the signal from users are allowed to be received by more than one point that could be geographically ...

Spatial multiplexing using multiple-input multiple-output signal processing

  • Randel S.
  • Ryf R.
  • Winzer P.

Wavelength-division multiplexing (WDM) has been the workhorse of data networks since the early 1990s, enabling ubiquitous and a ffordable data services with unabated exponential tra ffic growth. Today, commercial WDM systems can carry close to 10 Tbit/s over a single fi ber, and research experiments have reached the 100-Tbit/s mark. ...

A Fixed Group based Transmission Scheme with Limited Feedback in downlink Multiuser MIMO Systems

  • Yang T.
  • Yang Y.
  • Zhu X.

In downlink multiuser MIMO systems, multiuser interference (MUI) can be suppressed by ZF-precoding or BD methods. However, the quantization error in channel information feedback generates additional multiuser interference, which can't be suppressed by precoders. As a result, the performance is significantly degraded and exploitation of multiuser diversity is limited. In ...

Daily Power Consumption Analysis of On-Off IP-over-WDM Network Design Approaches

  • Morea A.
  • Rizzelli G.
  • Tornatore M.

We compared the energy efficiency of Multi-Layer Bypass and Direct-Bypass design approaches when addressing daily traffic variation in 100G and 40G optical networks.

Non-Orthogonal Multiple Access Based on Superposition and Three-Index Assignment in a Rayleigh Fading Channel

  • Schaepperle J.

The throughput in wireless cells using orthogonal multiple-access schemes like OFDMA is limited due to the fact that a significant part of the approximately mutually orthogonal radio resources are for fairness reasons assigned to users with high pathloss channels and therefore used with only low spectral efficiency. In this paper ...

Link vs. Transponder Sleep Mode Approaches for Future Survivable Green Optical Networks

  • Morea A.

Energy savings achieved by recently proposed link and transponder sleep mode approaches are compared in 1:1 protected all-optical networks. A hybrid approach combining both approaches is also proposed and its benefits assessed against the former.

Cloud@Edge: Design and Architecture of a Software Defined Edge Cloud

  • Chang H.
  • Hari A.
  • Lakshman T.
  • Mukherjee S.

The Edge Cloud is a virtual data center created by the cloudification of unused compute and storage resources at the edge in homes and enterprises. The edge cloud provides an efficient way to use otherwise unused re- sources, and can be used to deliver low latency and high storage applications ...