From LTE to 5G for Connected Mobility

  • Gimenez L.
  • Lauridsen M.
  • Mogensen P.
  • Rodriguez I.
  • Sorensen T.

Long Term Evolution, the fourth generation of mobile communication technology, has been commercially deployed for about five years. Even though it is continuously updated through new releases, and with LTE Advanced Pro Release 13 being the latest one, the development of the fifth generation has been initiated. In this article, ...

Mobile Edge Computing Potential in Making Cities Smarter

  • Dutta S.
  • Flinck H.
  • Iqbal M.
  • Ksentini A.
  • Taleb T.

This article proposes an approach to enhance users' experience of video streaming in the context of smart cities. The proposed approach relies on the concept of MEC as a key factor in enhancing QoS. It sustains QoS by ensuring that applications/ services follow the mobility of users, realizing the ``Follow ...

A Model-Driven Engineering Methodology to Design Parallel and Distributed Embedded Systems

  • Apvrille L.
  • Enrici A.
  • Pacalet R.

In Model-Driven Engineering system-level approaches, the design of communication protocols and patterns is subject to the design of processing operations (computations) and to their mapping onto execution resources. However, this strategy allows us to capture simple communication schemes (e. g., processor-bus-memory) and prevents us from evaluating the performance of both ...

A reflectarray antenna in KA band with MEMS control

  • Charrier M.
  • Gillard R.
  • Girard E.
  • Legay H.
  • Pinte B.
  • Ziaei A.

A reflectarray antenna is an attractive solution for reconfigurable antennas, for it has both advantages of arrays â?" beam shaping with fixed antenna â?" and reflectors â?" high efficiency single feed. However, to be competitive, it has to present low losses, high reliability, and low cost.

MIMO techniques and architectures for millimeter wave mobile communications

  • Baracca P.

Exploiting high carrier frequencies for mobile communications is a fundamental enabler to cope with the always increasing throughput demand. In fact, millimeter wave (mmWave) bands offer huge portions of spectrum that can be used to deliver very high data rates from or toward the mobile users. When compared to current ...

Nonlinear Interference Mitigation: Methods and Potential Gain

  • Dar R.
  • Winzer P.

We explore the potential benefits of digital nonlinearity compensation (NLC) techniques in fully loaded coherent wavelength-division multiplexed (WDM) transmission systems. After providing an overview of the various classes of nonlinear interference noise (NLIN) and digital signal processing approaches for their mitigation, we consider the two most practically relevant digital NLC ...

RSSI Fingerprinting Localization

  • Claussen H.
  • Dashti M.
  • Perez-Cruz F.
  • Yiu S.

Localization has attracted a lot of research effort in the last decade due to the explosion of location based service (LBS). In particular, fingerprinting localization has received much attention due to its simplicity and compatibility with existing hardware. In this work, we take a closer look at the underlying aspects ...

20-Gb/s polarization division multiplexed WDM PON transmitter based on self seeded RSOAs

  • Brenot R.
  • Brunero M.
  • Martinelli M.
  • Parolari P.

Reflective semiconductor optical amplifier (RSOA)-based self-seeded (SS) transmitters have proved to be compact self-tuning transceivers for wavelength division multiplexed passive optical networks (WDM PONs). The small electro-optical bandwidth of currently available RSOA devices limits the maximum bit-rate for each transmitter. We thus propose a self-tuning WDM PON multilevel transmitter based ...

Feature issue introduction: Nonlinearity mitigation for coherent transmission systems

  • Alic N.
  • Chandrsekhar S.
  • Karlsson M.
  • Mecozzi A.

The authors introduce the feature issue on nonlinearity mitigation for coherent transmission systems. (C) 2017 Optical Society of America

Elastic Optical Interface with Variable Baud-Rate: Architecture and Proof-of-Concept

  • Belotti S.
  • Bigo S.
  • Dupas A.
  • Dutisseuil E.
  • Layec P.

Varying the symbol rate is an alternative or complementary approach to varying the modulation format or the channel spacing, in order to turn optical networks into elastic networks. We propose to allocate just-enough bandwidth for each optical connection by adjusting the symbol rate such that penalty originating from long cascades ...

An Enhanced MPPT Method Combining Fractional-Order and Fuzzy Logic Control

  • Chen Y.
  • Sun Y.
  • Szeto W.
  • Tang S.
  • Yang Y.
  • Zhao Y.

A fractional-order fuzzy logic control (FOFLC) method for maximum power point tracking (MPPT) in a photovoltaic (PV) system is presented. By combining the robustness of fuzzy logic with the accuracy of fractional order, the proposed method can improve the tracking accuracy in weather variations compared with the conventional fuzzy MPPT. ...

Connected OFCity: Technology innovations for a smart city project [Invited]

  • Bourg K.
  • Campelo D.
  • Chanclou P.
  • Dai E.
  • Du L.
  • Figuerola S.
  • Forde T.
  • Harstead E.
  • Jungnickel V.
  • Khotimsky D.
  • Marinescu M.
  • Middleton C.
  • Roberts H.
  • Ruffini M.
  • Simeonidou D
  • Takahara T.
  • Tucker R.
  • Valcarenghi L.
  • Vetter P.
  • Wey J.
  • Yadav R.
  • Yin S.

Around the world, municipalities have been making substantial investments into broadband access infrastructure to accelerate the build-out of an urban phenomenon that has become known as a smart or connected city. At the 2016 Optical Fiber Communications Conference, a team contest, the Connected OFCity Challenge, was held to discuss the ...

ElastiCon: An Elastic Distributed SDN Controller

  • Dixit A.
  • Hao F.
  • Kompella R.
  • Lakshman T.
  • Mukherjee S.

Software Defined Networking (SDN) has become a popular paradigm for centralized control in many modern networking scenarios such as data centers and cloud. For large data centers hosting many hundreds of thousands of servers, there are few thousands of switches that need to be managed in a centralized fashion, which ...

Caesar: A content Router for High-speed Forwarding on content Names

  • Boislaigue R.
  • Laufer R.
  • Leonardo Liguaglossa
  • Perino D.
  • Varvello M.

Forwarding on name-based identifiers is receving increasing attention as a growing number of in-network services are built on location-independent identifiers, e.g., DNS and CDNs. In addition, Information Centric Networking (ICN) is proposing to provide name-based forwarding as a basic communication primitive. In this paper we present Caesar, a router design ...

CoRC: Coordinated routing and caching for named data networking

  • Choi H.
  • Choi N.
  • Choi Y.
  • Chung T.
  • Kwon T.
  • Yoo J.

Named Data Networking (NDN) uses content names as routing entries, and thus the scalability of NDN routing is of primary concern. NDN allows in-network caching as a built-in functionality; however, if network nodes make caching decisions individually, duplicate copies of the same content may exist among nearby nodes. To address ...

Performing broadband optical transmission links by appropriate spectral combination of broadband SOA gain, Raman amplification and transmission fiber losses

  • Brenot R.
  • Ghisa L.
  • Guegan M.
  • Morel P.
  • Motaweh T.
  • Sharaiha A.
  • Verdier A.

We present the principle of a broadband optical transmission link based on the appropriate combination of the, spectral profiles of broadband SOA gain, Raman amplification and transmission fiber losses. We show that thanks to this principle, a bandwidth as wide as 89 nm (defined at -1 dB) over 75.5 km ...

Optical Amplified 40-Gbps Symmetrical TDM-PON Using 10-Gbps Optics and DSP

  • Houtsma V.
  • Van Veen D.
  • Vetter P.
  • Yin S.

We proposed and demonstrated a symmetrical 40-Gbps time division multiplexed passive optical network (TDM-PON) using low-cost 10-Gbps optical components in the optical network unit, optical amplification at the optical line terminal (OLT), and digital signal processing (DSP), based on four-level pulsed amplitude (PAM-4) modulation in the downstream and electrical duobinary ...

Feed-Forward Staircase Codes

  • Lei M. Zhang
  • Schmalen L.

We propose two variants of staircase codes that resolve the issue of parity-propagation in their encoding process. The proposed codes provide a systematic way of terminating a staircase code after an arbitrary number of blocks. The class of feed-forward staircase codes are introduced, which uses a self-protection technique to avoid ...

Long Term Evolution-Wireless Local Area Network Aggregation Flow Control

  • Ding M.
  • Laselva D.
  • Lechowicz P.
  • Lopez-Perez D.
  • Lunden P.
  • Malkamaki E.
  • Purovesi P.
  • Virtej E.
  • Wallmeier E.

LTE-WLAN Aggregation (LWA) has recently emerged as a promising third generation partnership project (3GPP) Release 13 technology to efficiently aggregate long term evolution (LTE) and wireless local area network (WLAN) at the packet data convergence protocol (PDCP) layer, allowing uplink traffic to be carried on LTE and downlink on both ...

Coded Distributed Computing: Straggling Servers and Multistage Dataflows

  • Avestimehr A.
  • Li S.
  • Maddah-Ali M.

In this paper, we first review the Coded Distributed Computing (CDC) framework, recently proposed to significantly slash the data shuffling load of distributed computing via coding, and then discuss the extension of the CDC techniques to cope with two major challenges in general distributed computing problems, namely the straggling servers ...