Simulating Random Mobility with Exact Geometric Calculations: MobiLib Overview

  • Gloss B.

Performance studies in mobile communications require us to take user mobility as an important stimulus for the systems into account. It was our research interest to study “Mobile Communications in Heterogeneous Access Environments” within the Nexus Project on “Augmented World Models for Location/Context Aware Services” that drove us to implement ...

Green Optical Slot Switching Torus for Mega-Datacenters

  • Bigo S.
  • Dupas A.
  • Jenneve P.
  • Mardoyan H.
  • Mestre Adrover M.
  • Pointurier Y.
  • Uscumlic B.

We propose a torus topology to interconnect Optical Slot Switching rings using elastic-rate transponders. Power consumption in mega-datacenters can be reduced by more than 3x and interfaces and cables by more than 500x when compared with the traditional Ethernet architecture.

Power efficient service differentiation based on traffic-aware survivable elastic optical networks

  • Morea A.

This study assesses the feasibility of defining different service classes based on protection schemes in core optical networks. Moreover, we propose a dedicated energy saving strategy for each of the service classes in order to minimize the overall power consumption of the network. Four classes of service are proposed: platinum, ...

Elasticity for dynamic recovery in optical transport networks

  • Charlet G.
  • Morea A.
  • Verchere D.

We provide the advantages of 'just-enough' recovery due to the joint use of elastic optical networks with OTN switches in case of optical recovery

Complexity and Flexible Grid Networks

  • Morea A.

Flexible grids promise to revolutionize the net- work design and control plane of future optical networks by providing increased adaptability of spectral resources to heterogeneous network conditions. Unfortunately, flexibility is often provided at the cost of additional complexity in the network management. In this paper, we consider the optimization of ...

Cost benchmarking of different WSS sizes in OXCs

  • Bertolini M.
  • Morea A.
  • Zami T.

We show how the size and the contention property of the add/drop blocks in the optical nodes impact the quantity of devices of the CONUS WDM network with incremental traffic.

Impact of traffic fluctuations and dedicated protection on energy savings in dynamic elastic optical networks

  • Morea A.
  • Turus I.
  • Verchere D.

We present an analysis of the energy savings when taking into account a realistic traffic model. Daily and weekly traffic fluctuations as well as yearly traffic growth are taken into account when analyzing the power consumption given by the powered-on equipment as well as the IDLE opto-electronic devices. We also ...

Load-based Transparent Reach Maximization in Elastic Optical Networks

  • Alberto Bononi
  • Morea A.
  • Paolo Serena

We propose a novel power-selection strategy for maximizing the transparent reach in elastic optical networks based on knowledge of the average wavelength load, and we quantify the savings in regenerations with respect to using the full-load standard reach.

IoT360 Lecture on IoT Service Platforms

  • Roelands M.

Invited lecture at IoT360 Summer School, 31/10/2014, Rome, Italy, Abstract: IoT Service platforms are not different from other (possibly distributed) stream-intensive service creation and execution environments, but the IoT perspective elicits generalisable requirements related to the observation & actuation interaction the platform has with the real world in which ...

200 Gb/s modulation more suitable for core WDM networks

  • Zami T.

This study reports what percentage of the optical connections through CONUS and KALEIDON WDM core networks could advantageously benefit from 200 Gb/s channel modulation, particularly with the novel 200 Gb/s 43 GBaud PDM-8QAM format.

The Future of Network Energy

  • Klein T.

We are witnessing an explosion of the traffic volumes in communication and data networks resulting from both the worldwide broadband subscriber base expansion and the increasing number and diversity of connected applications, services, devices and objects. The increased traffic volumes and connectivity requirements necessitate continuous development and deployment of new ...

The Future of the Enterprise LAN chapter

  • Kahn C.

Over the last decade, wireless technology has become the dominant means for device connectivity, and the days of wired Ethernet are effectively over- however it has yet to transform enterprise device connectivity to the same extent. And, in consequence, the level of innovation that has characterized the mobile device ecosystem ...

Templates and review/management procedures

  • Schaich F.

This internal report presents an overview of FANTASTIC-5G Guidelines and Procedures developed specifically for partners perusal in order to secure a smooth operation of the project, facilitate the working process and to minimise administrative overhead. The deliverable covers such areas as project s roles and responsibilities, tools, quality assurance and ...

New 5G Waveform Trials

  • Fuchs R.
  • Koppenborg J.
  • Mayer H.
  • Rheinschmitt R.
  • Samardzija D.

Application scenarios, such as Internet of Things, Gigabit wireless connectivity, tactile Internet, and many more expected for the fifth generation (5G) of cellular communication systems reveal major shortcomings of LTE/LTE-A and the of a new air interface. The purpose of this work is to identify, simulate and test the waveforms ...

Network-based dynamic prioritization of HTTP adaptive streams to avoid video freezes

  • Bostoen T.
  • De Turck F.
  • Huysegems R.
  • Petrangeli S.
  • Wauters T.

HTTP Adaptive Streaming (HAS) is becoming the de-facto standard for video streaming services over the Internet. In HAS, each video is segmented and stored in different qualities. Rate adaptation heuristics, deployed at the client, allow the most appropriate quality level to be dynamically requested, based on the current network conditions. ...

Fair comparison of the contentionless property in OXC

  • Jenneve P.
  • Zami T.

By comparing 2 distinct wavelength-routing Optical Cross-Connects (OXC), this study highlights the relevance to really consider dynamic traffic to correctly assess the contentionless property

Compressive Sensing via Low-Rank Gaussian Mixture Models

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

We develop a new compressive sensing (CS) inversion algorithm by utilizing the Gaussian mixture model (GMM). While the compressive sensing is performed globally on the entire image as implemented in our lensless camera, a low-rank GMM is imposed on the local image patches. This low-rank GMM is derived via eigenvalue ...

Electrodeposited Micro Thermoelectric Module Design for Hybrid Semiconductor Laser Cooling on a Silicon Photonics Platform

  • Cunningham G.
  • Enright R.
  • Frizzell R.
  • Lei S.
  • Mathews I.
  • Shen A.

With the promise of highly integrated, high performance optoelectronic devices for communication applications, silicon photonics has emerged as a scalable solution to meet the demands for increased bandwidth in communication networks. An ultimate vision for silicon photonics realizes the integration of both electronic and photonic functionality in optoelectronic devices. However, ...

Channel Estimation and Precoding in Closed-Loop Distributed Multi-Antenna Systems

  • Wild T.

Today's wireless cellular systems are limited by inter-cell interference. Coordinated multi-point transmission and reception (CoMP) is a promising approach to cope with this problem. Here, multiple base stations act as a distributed antenna system, exchanging coordination information and potentially user data via backhaul in order to reduce this interference, increasing ...

Profiling user activities with minimal traffic traces

  • Ajwani D.
  • Mai T.
  • Sala A.

Understanding user behavior is essential to personalize and enrich a user's online experience. While there are significant benefits to be accrued from the pursuit of personalized services based on a fine-grained behavioral analysis, care must be taken to address user privacy concerns. In this paper, we consider the use of ...