Optimal Resource Configuration of Complex Services in the Cloud

  • Abhinandan Sridhara Rao Prasad
  • Arjona Aroca J.
  • David Koll
  • Hilt V.
  • Omana Iglesias J.
  • Xiaoming Fu

Virtualization helps to deploy the functionality of expensive and rigid hardware appliances on scalable virtual resources running on commodity servers. However, optimal resource provisioning for non-trivial services is still an open problem. While there have been efforts to answer the questions of when to provision additional resources in a running ...

PrivApprox: Privacy-Preserving Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Le D.
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe

How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...

Statistical fingerprint-based intrusion detection system (SF-IDS)

  • Boero L.
  • Cello M.
  • Marchese M.
  • Mariconti E.
  • Naqash T.
  • Zappatore S.

Intrusion detection systems (IDS) are systems aimed at analyzing and detecting security problems. The IDS may be structured into misuse and anomaly detection. The former are often signature/rule IDS that detect malicious software by inspecting the content of packets or files looking for a ``signature{''} labeling malware. They are often ...

Outdoor-indoor angular power spectrum prediction

  • Chizhik D.
  • Valenzuela R.

Theory of normal mode propagation in a LOS street scenario is extended to include propagation into buildings through coupling to a diffuse indoor field. Previous work reported the approach led to close agreement with signal strength measurements. Here it is found that the method reproduces signal directions for direct and ...

Low-frequency illumination by an E wave of infinitely long, parallel, perfect conductors

  • De Smedt R.

The low-frequency illumination by an E wave of one or more perfectly conducting cylinders of arbitrary shape is studied. The induced current, the radiation pattern and the scattering cross section exhibit a frequency dependent logarithmic and the complete, frequency independent part in their low frequency behavior. They can be derived ...

A measurement study on Skype voice and video calls in LTE networks on high speed rails

  • Li L.
  • Mijumbi R.
  • Peng C.
  • Wang H.
  • Wang D.
  • Xiangxiang Wang
  • Xu K.
  • Zheng K.

Recent advances in high speed rails (HSRs), coupled with user demands for communication on the move, are propelling the need for acceptable quality of communication services in high speed mobility scenarios. This calls for an evaluation of how well popular voice/video call applications, such as Skype, can perform in such ...

Guest Editorial on the Special Issue of Optical Interconnects

  • Dong P.
  • Huang R.
  • Plant D.
  • Shekhar S.

The papers in this special section are devoted to the topic of optical interconnections. These papers represent both the best of the conference as well as the leading edge technologies and research of the field. The performance scaling of digital systems demands for better interconnects with larger bandwidth, higher density, ...

Well-posedness of the limiting equation of a noisy consensus model in opinion dynamics

  • Chazelle B.
  • Jiu Q.
  • Li Q.
  • Wang C.

This paper establishes the global well-posedness of the nonlinear Fokker-Planck equation for a noisy version of the Hegselmann-Krause model. The equation captures the mean-field behavior of a classic multi agent system for opinion dyrignics. We prove the global existence, uniqueness, nonnegativity and regularity of the weak solution. We also exhibit ...

Traffic Engineering in data centers with CloudBOSS: Cloud Burst Optical Slot Switching

  • Pointurier Y.

We review and demonstrate CloudBOSS, an intra-data center architecture based on optical packet switching, and its key optical building blocks. CloudBOSS, when coupled with an SDN-enabled control plane, can provide on-demand strict performance guarantees (e.g., end-to-end capacity or bounded latency).

Direct and Electroabsorption Modulation of a IIIâ?"V-on-Silicon DFB Laser at 56 Gb/s

  • Abbasi A.
  • Bauwelinck J.
  • Duan G.
  • Moeneclaey B.
  • Morthier G.
  • Roelkens G.
  • Verbist J.
  • Yin X.

In order to cope with the ever-growing Internet traffic, high-speed optical interconnects are becoming indispensable. Silicon photonics is emerging as a key technology for such interconnects. In this paper, we demonstrate 56 Gb/s nonreturn to zero on-off keying (NRZ-OOK) direct modulation based on a high bandwidth heterogeneously integrated III-V-on-silicon distributed ...

Deep learning through evolution: A hybrid approach to scheduling in a dynamic environment

  • Claussen H.
  • Fagan D.
  • Fenton M.
  • Kucera S.
  • Lynch D.
  • Mo'Neill

Genetic Algorithms (GAs) have been shown to be a very effective optimisation tool on a wide variety of problems. However, they are not without their drawbacks. GAs require time to run, and evolve a bespoke solution to the desired problem in real time. This requirement can prove to be prohibitive ...

MAC layer enhancements for ultra-reliable low-latency communications in cellular networks

  • Mogensen P.
  • Pedersen K.
  • Pocovi G.
  • Soret B.

Ultra-reliable low-latency communications (URLLC) entail the transmission of sporadic and small packets, with low latency and very high reliability. Among many potential areas of optimization for URLLC, the problems of large delays during HARQ retransmissions, and inaccurate link adaptation as a consequence of the rapidly-varying interference conditions are studied. The ...

Control channel enhancements for ultra-reliable low-latency communications

  • Iraji S.
  • Jantti R.
  • Li Z.
  • Shariatmadari H.
  • Uusitalo M.

The cellular wireless systems are gaining more attention among other connectivity solutions for supporting machine-type communications (MTC). The efficient support of MTC relies on incorporating new features in the communication networks. Ultra-reliable low-latency communications (URLLC) is one of the considered features that is essential for the support of mission-critical applications, ...

Gaussian Learning-Without-Recall in a dynamic social network

  • Chazelle B.
  • Chu Wang

We analyze the dynamics of the Learning-Without-Recall model with Gaussian priors in a dynamic social network. Agents seeking to learn the state of the world, the â??truthâ??, exchange signals about their current beliefs across a changing network and update them accordingly. The agents are assumed memoryless and rational, meaning that ...

Network slicing with flexible mobility and QoS/QoE support for 5G Networks

  • Crippa M.
  • Friderikos V.
  • Gajic B.
  • Gramaglia M.
  • Sayadi B.
  • Sciancalepore V.
  • Von Hugo D.
  • Yousaf F.

Network slicing is an emerging area of research, featuring a logical arrangement of resources to operate as individual networks, thus allowing for massively customizable service and tenant requirements. The focus of this paper is to present the design of a flexible 5G architecture for network slicing, building on SDN and ...

WDM slot sharing of colored optical packets for latency improvement and Class of Service differentiation

  • Amar D.
  • Chiaroni D.
  • Gillet F
  • Lepers C.
  • Lourdiane M.
  • Ware C.

The optical packet switching technology has been identified as a key technology to offer data rate and modulation format transparency, fine switching granularity and efficient bandwidth utilization. The ANR N-GREEN project proposes a novel over-dimensioned switch/router node with colored optical packet concept. In this work, we propose a new WDM ...

Towards WDM slot switching for aggregation access and metropolitan applications: the ANR N-GREEN project

  • Chiaroni D.
  • Ware C.

WDM has been generally proposed to groom wavelengths for transport applications. This paper will describe our attempt to reduce cost and energy consumption of smart network elements, through an extended use of WDM techniques at the data link level. This paper will draw the advantages of this approach and will ...

Amplifiers and wavelength switching devices for space-division multiplexed systems

  • Fontaine N.

Space-division multiplexed (SDM) systems use multiple spatial-paths in multimode or multi-core fiber to increase the capacity and/or photon-efficiency carried by an optical fiber. For SDM systems to be competitive, they must outperform or have a cost advantage over parallel single mode fiber systems. The cost advantages can come from spatial ...

On the performance prediction of optical transmission systems in presence of filtering

  • Delezoide C.
  • Layec P
  • Ramantanis P.

We investigate the impact of optical filtering from routing nodes in optical networks, and how to predict it. From measurements in presence of tight optical filtering, we propose a new method relying on an extended back-to-back model for improved prediction of the quality of transmission.

Routing at Large Scale: Advances and Challenges for Complex Networks

  • Audenaert P.
  • Camelo M.
  • Careglio D.
  • Colle D.
  • Coudert D.
  • Demeester P.
  • Fabrega L.
  • Glacet C.
  • Kumar A.
  • Nisse N.
  • Papadimitriou D.
  • Sahhaf S.
  • Tavernier W.
  • Vila P.

A wide range of social, technological and communication systems can be described as complex networks. Scale-free networks are one of the well known classes of complex networks in which nodes' degrees follow a power-law distribution. The design of scalable, adaptive and resilient routing schemes in such networks is very challenging. ...