Electrical and geometrical optimization for a 2DoF non-linear energy harvester

  • Frizzell R.

In this paper a non-linear model for a two degree-of-freedom (2dof) vibrational energy harvester is presented, together with its experimental validation. The device consists of two masses relatively oscillating one inside the other. The inner (lighter) mass comprises five NdFeB magnets, arranged in a Halbach configuration. The outer (heavier) mass ...

Nonlinear analysis of a two-degree-of-freedom energy harvester

  • Frizzell R.

In recent years the use of Wireless Sensor Networks (WSNs) has increased rapidly, enabled by the development of small and ultra-low power electronics. The majority of these sensors are battery powered, and this can lead to high maintenance costs when batteries have to be replaced. A practical solution to power ...

Improving End to End Energy Efficiency in Network Function Virtualization

  • Arjona Aroca J.
  • Omana Iglesias J.
  • Sridhara Rao Prasad A.

Network Function Virtualization (NFV) is a new paradigm of virtualizing the services provided by the telecom and cloud operators. NFV is one of the hottest research areas in the field of computer networking. Given one or more service deployed on the virtual machines, the goal is to find a solution ...

Analytical and Semi-Analytical Models for Nonlinear Transmission

  • Dar R.

We review recent advances in modeling nonlinear interference noise (NLIN) in WDM systems. We explore the time-domain and frequency-domain representations of NLIN and discuss techniques for evaluating its statistical properties and impact on system performance.

Digging Deeper in Real-time for Security, Reliability and Performance: Dynamic and Multi-Granular Analytics for Virtualized Networks

  • Jagadeesan L.
  • Mendiratta V.

Real-time analytics provides the promise to enable the rapid detection and mitigation of security, reliability, and performance issues in the emerging area of virtualized services and networks. These multi-domain Software Defineded Networks (SDN), emerging in the industry, can be dynamically reconfigured in real-time through software, allowing rapid response to changes ...

Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments

  • Alex Alvarado
  • Rios Muller R.
  • Schmalen L.

In this paper, we compare different metrics to predict the error rate of optical systems based on nonbinary forward error correction (FEC). It is shown that the correct metric to predict the performance of coded modulation based on nonbinary FEC is the mutual information. The accuracy of the prediction is ...

Augustus: a CCN router for programmable networks

  • Davide Kirchner
  • Gallo M.
  • Leonardo Maccari
  • Lorenzo Saino
  • Perino D.
  • Raihana Ferdous
  • Renato Lo Cigno

ICN is an architecture proposed for the evolution of the Internet. Despite the attention it received from the research community its deployment has been slowed down by the significant upgrades required to the existing infrastructure. Software programmable networking frameworks constitute an opportunity for the deployment of ICN, as they allow ...

The Marriage of Approximate Computing and Privacy-Preserving Data Analytics

  • Chen R.
  • Christof Fetzer
  • Do Le Quoc
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe
  • Volker Markl

Online advertisement is a major economic force for modern online services, where users' private data is continuously collected for real-time data analytics. In the current advertisement ecosystem, the goals of users and data analysts are at odds: users' seek stronger privacy, while analysts strive for high-utility data analytics in near ...

High Symbol Rate, Single Carrier, Coherent Optical Transmission Systems for Data Rates from 400 Gb/s to 1.0-Tb/s

  • Adamiecki A.
  • Cho J.
  • Raybon G.

We review recent experimental single carrier coherent transmission systems for bit rates from 400 Gb/s to 1.0 Tb/s, using high-speed electronic multiplexing at symbol rates from 72 GBd to 107 GBd

A New Relaying Protocol For 5G Small Cell With Wireless Backhaul Channels

  • Claussen H.
  • Fang D.

In this paper, we propose a network coding enabled wireless backhaul (NC-WB) for the next generation small cell networks. NC-WB aggregates the access and backhaul links to the same frequency band for wireless backhaul small cells. The smallcell base stations (SBS) generate the network coded functions of the signals coming ...

Measurement and Analysis of Cloud Service Reliability

  • Akkus I.
  • Chen R.
  • Hilt V.
  • Jiang Y.
  • Rimac I.
  • Tola B.
  • Viswanath B.

Cloud computing powers a diverse range of web services today. Cloud-based applications enable us to conduct e-commerce transactions, interact with others via social applications, track our fitness, and even helps us to organize and plan our daily lives. Given the growth and our increasing reliance on cloud services, it is ...

Design Issues and Simulative Validation of Multiuser Turbo-SIC Receiver in LTE: Towards Real-Time Performance Measurements

  • Harman D.
  • Otterbach J.
  • Samardzija D.
  • Tavares M.
  • Zivkovic M.

Multiuser MIMO is a promising technique to increase the available spectrum in next generation 5G wireless networks, especially in enhanced Machine Type Communications (eMTC) for emerging Internet-of-Things (IoT) applications where the large number of users shares the limited band. Significant uplink capacity improvements can be achieved by assigning the same ...

Application-Aware TCP

  • Francini A.
  • Joseph D. Beshay
  • Ravi Prakash
  • Swair Shah

TCP congestion control is the primary enabler for the coexistence of multiple application flows on a single link. It is designed to achieve long-term fairness between the multiplexed flows in a fully distributed manner. However, long-term fairness between TCP flows does not always translate into Quality-of-Experience (QoE) fairness between the ...

Evolutionary Learning of Scheduling Heuristics for Heterogeneous Wireless Communications Networks

  • Claussen H.
  • David Lynch
  • Kucera S.
  • Michael Fenton
  • Michael O’Neill

Network operators are struggling to cope with exponentially increasing demand. Capacity can be increased by densifying existing Macro Cell deployments with Small Cells. The resulting two-tiered architecture is known as a Heterogeneous Network or "HetNet". Significant inter-tier interference in channel sharing HetNets is managed by resource interleaving in the time ...

SDN for 5G Mobile Networks: NORMA perspective

  • Alberi-Morel M.
  • Sayadi B.

To build a flexible and an adaptable architecture network supporting variety of services and their respective requirements, 5G NORMA introduced a network of functions based architecture breaking the major design principles followed in the current network of entities based architecture. This revolution exploits the advantages of the new technologies like ...

Demonstration of quantum dot SOA based colorless ONU transmitter for symmetric 40 Gb/s TWDM PON

  • Chang Q.
  • Gao Z.
  • Hu X.
  • Huang X.
  • Sun X.
  • Xiao S.
  • Ye C.
  • Zhang K.

Detailed numerical investigation of self-seeded colorless ONU transmitter using quantum dot (QD) SOA as the intensity modulator for symmetric 40 Gb/s TWDM-PON has been developed. It is shown that the QD SOA-based intensity modulator is able to support 10 Gb/s OOK upstream signal transmission with an optical extinction ratio of ...

Security enhancements in Transport-SDN networks

  • Buchali F.
  • Dembeck L.
  • Dischler R.
  • Gebhard U.
  • Lach E.
  • Milbrandt J.

The paper describes a Transport-SDN network demonstrator in the light of network security.

VLS4: Valiant Load Balanced Segment Routing

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

With the rapid rise in the number of diverse Internetbased applications, it is to be expected that network traffic patterns will vary widely. Significant traffic fluctuations from what is predicted may require corresponding routing adaptations to avoid congestion. Valiant Load Balancing (VLB), or equivalently two-phase routing, is a scheme that ...

SAMPO: Online Subflow Association for Multipath TCP with Partial Flow Records

  • Hao F.
  • Lakshman T.
  • Mukherjee S.

Multipath TCP (MPTCP) is a promising technique for boosting application throughput while using well-known and versatile network socket interface. Recently, many interesting applications of MPTCP in various environments such as wireless networks and data centers have been proposed, but little work has been done to investigate the impact of this ...

Path computation for revenue optimization

  • Hao F.
  • Jansen A.
  • Kodialam M.
  • Lakshman T.

Leveraging centralized path computation algorithms can significantly improve routing efficiencies and revenue generation in existing IP/MPLS networks.