Evaluating the Impact of Data Center Locations and Distance-Adaptive Transmission on the Network Capacity for Serving Cloud Traffic

  • Guan K.

In this work, we evaluate the impact of distance-adaptive transmission and the locations of data centers (DCs) on the required bandwidth resources for serving DC-to-user and DC-to-DC cloud traffic.

Characterization of Electro-Optic Bandwidth for ultra-High Speed Modulators

  • Adamiecki A.
  • Borui L.
  • Chen X.
  • Dong P.
  • Raybon G.
  • Sethumadhavan C.
  • Winzer P.

We propose a novel method for measuring bandwidth of electro-optic modulators up to 100-GHz, using a 50-GHz synthesizer, an intensity modulator, a photodiode, and an optical spectrum analyzer. We measured various modulators and report our results.

Achievable Rates of Multidimensional Multisphere Distributions

  • Argell E.
  • Essiambre R.
  • Karout J.
  • Tulino A.

The maximum achievable rate or mutual information of multidimensional multisphere distributions in arbitrary dimensions in the presence of additive white Gaussian noise is derived. At high signal-to-noise ratios, 4-dimensional multisphere constellations offer higher achievable rates than 2-dimensional ones transmitted on each of the two polarizations of the optical carrier.

Shake Before Break: Per-Span Fiber Sensing with In-Line Polarization Monitoring

  • Simsarian J.
  • Winzer P.

Fast state-of-polarization transients induced by disturbances of the transmission fiber can cause errors and may indicate an imminent fiber break. We present simple in-line polarization monitoring schemes that detects fiber disturbances and enable proactive protection.

Low-latency 2D torus Burst Optical Slot Switching Data Center

  • Benzaoui N.
  • Pointurier Y.

We evaluate the performance of a BOSS data center network based on the 2D torus topology and the impact of transport mechanisms on the end-to-end latency. We show that the 2D torus BOSS data center is a low latency and scalable network.

Demonstration of 64 x 0.5Gbaud Nonlinear Frequency Division Multiplexed Transmissions with 16QAM and 32QAM Formats

  • Aref V.
  • Buelow H.
  • Thai Le S.

Record data rates of 25.6Gb/s and 32Gb/s for NFDM transmissions are experimentally demonstrated using 64 overlapping orthogonal 0.5Gbaud channels, showing for the first time, improvements of 0.7dB and 1.3dB over conventional systems at 1464km, for 16QAM and 32QAM formats, respectively

Complex Dielectric Permittivity Extraction Based on Multilayer Thin Film Microstrip Lines

  • Bulja S.
  • Kopf R.
  • Majid Norooziarab
  • Robert Cahill

This paper presents an analytical method for the extraction of the complex relative permittivity of multi-layered dielectric substrates that are used to construct thin film microstrip lines (TFMLs). The proposed approach is based on the analysis of an equivalent parallel plate waveguide filled with a dielectric substrate whose relative dielectric ...

Incentivizing social media users for mobile crowdsourcing

  • Aiello L.
  • Karaliopoulos M.
  • Koutsopoulos I.
  • Micholia P.
  • Morales G.
  • Quercia D.

We focus on the problem of contributor-task matching in mobile crowd-sourcing. The idea is to identify existing social media users who possess domain expertise (e.g., photography) and incentivize them to perform some tasks (e.g., take quality pictures). To this end, we propose a framework that extracts the potential contributors' expertise ...

Mutual service processes in Euclidean spaces: existence and ergodicity

  • Baccelli F.
  • Mathieu F.
  • Norros I.

Consider a set of objects, abstracted to points of a spatially stationary point process in R-d, that deliver to each other a service at a rate depending on their distance. Assume that the points arrive as a Poisson process and leave when their service requirements have been fulfilled. We show ...

3GPP ACLR measurements for Millimeter-Wave Wireless Backhaul Link with Self-Heterodyning Mixing

  • Ferling D.
  • Luz G.
  • Maier S.
  • Schlesinger H.
  • Woerner S.
  • Yu X.

This paper analyzes the signal quality achievable with a novel system architecture for low-power small cell remote units with integrated millimeter-wave wireless backhaul. The data signal on the backhaul link uses the same 3GPP compliant signal as with the access link serving the users. In contrast to existing systems, the ...

Safety of Information and Communication Technology Equipment Used in Smart Grid Applications

  • Gies D.

This paper explores the merger of power utility circuits with that of the information and communication technology (ICT) equipment under the smart grid and the safety implications that this poses, and determines what is the maximum voltage that ICT equipment, designed in accordance with IEC 62368-1 can directly access power-grid ...

An Empirical Outdoor-to-Indoor Path Loss Model From Below 6 GHz to cm-Wave Frequency Bands

  • Kovacs I.
  • Mogensen P.
  • Nguyen H.
  • Rodriguez I.
  • Tbsã¸Rensen

This letter presents an empirical multifrequency outdoor-to-indoor path loss model. The model is based on measurements performed on the exact same set of scenarios for different frequency bands ranging from traditional cellular allocations below 6 GHz (0.8, 2, 3.5, and 5.2 GHz), up to centimeter (cm)-wave frequencies (10, 18, and ...

Multidimensional Resource Allocation in NFV Cloud

  • Goldstein M.
  • Raz D.
  • Segall I.

Network Function Virtualization (NFV) is a new networking paradigm in which network functionality is implemented on top of virtual infrastructure deployed over COTS servers. One of the main motivations for the shift of telco operators into this paradigm is cost reduction, thus the efficient use of resources is an important ...

The Actual Cost of Software Switching for NFV Chaining

  • Caggiani Luizelli M.
  • Raz D.
  • Saar Y.
  • Yallouz J.

Network Function Virtualization (NFV) is a novel paradigm allowing flexible and scalable implementation of network services on cloud infrastructure. An important enabler for the NFV paradigm is software switching, which needs to satisfy rigid network requirements such as high throughput and low latency. Despite recent research activities in the field ...

Order-Optimal Rate of Caching and Coded Multicasting With Random Demands

  • Caire G.
  • Ji M.
  • Llorca J.
  • Tulino A.

We consider the canonical shared link caching network formed by a source node, hosting a library of $m$ information messages (files), connected via a noiseless multicast link to $n$ user nodes, each equipped with a cache of size $M$ files. Users request files independently at random according to an a-priori ...

5G Radio Access Protocols with Multi-User Detection for URLLC

  • Marco Centenaro
  • Saur S.

In this paper we present both collision-free and contention-based radio access protocols for sporadic small data packet transmissions in the uplink of 5G. We compare them by computer simulations with respect to throughput and a joint latency plus reliability metric. Based on that we analyze the tradeoff between number of ...

Power Fluctuations of Intermodal Four-Wave Mixing in Few-Mode Fibers

  • Esmaeelpour M.
  • Essiambre R.
  • Fontaine N.
  • Lingle R.
  • Ryf R.
  • Sun Y.
  • Toulouse J.

We demonstrate the full bandwidth measurement of the intermodal four-wave mixing efficiency for a 4.7-km three-spatial-mode few-mode fiber. Large fluctuations of intermodal four-wave mixing between the LP $_{01}$ and LP$_{11}$ modes are experimentally observed. These fluctuations exhibit a strong wavelength dependence that can be persistent in time. The fluctuations are ...

Large-Signal Modeling of Multi-finger InP DHBT Devices at Millimeter-Wave Frequencies

  • Dupuy J.
  • Johansen T.
  • Konczykowska A.
  • Midili V.
  • Nodjiadjim V.
  • Riet M.
  • Squartecchia M.
  • Zhurbenko V.

A large-signal modeling approach has been developed for multi-finger devices fabricated in an Indium Phosphide (InP) Double Heterojunction Bipolar Transistor (DHBT) process. The approach utilizes unit-finger device models embedded in a multi-port parasitic network. The unit-finger model is based on an improved UCSD HBT model formulation avoiding an erroneous RciCbci ...

Low Conversion Loss 94 GHz and 188 GHz Doublers in InP DHBT Technology

  • Dupuy J.
  • Johansen T.
  • Konczykowska A.
  • Midili V.
  • Nodjiadjim V.
  • Riet M.
  • Rybalko Oleksandr
  • Squartecchia M.
  • Zhurbenko V.

An Indium Phosphide (InP) Double Heterojunction Bipolar Transistor (DHBT) process has been utilized to design two doublers to cover the 94 GHz and 188 GHz bands. The 94 GHz doubler employs 4-finger DHBTs and provides conversion loss of 2 dB. A maximum output power of nearly 3 dBm is measured ...

On Deep Learning-Based Channel Decoding

  • Cammerer S.
  • Gruber T.
  • Hoydis J.
  • Ten Brink S.

We revisit the idea of using deep neural networks for one-shot decoding of random and structured codes, such as polar codes. Although it is possible to achieve maximum a posteriori (MAP) bit error rate (BER) performance for both code families and for short codeword lengths, we observe that (i) structured ...