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 ...

Two-Dimensional Pilot Design for Non-Orthogonal Multiple Access in Multicarrier System

  • Chen Y.

As being adopted as an important candidate Multiple Access (MA) scheme of future wireless communications, Non-Orthogonal Multiple Access (NOMA) recently attracts more and more attention. In this paper, we propose a solution of two-dimensional superimposed pilot design for NOMA. The proposed scheme exploits Walsh Hadamard matrix and its modifications to ...

Designing Optimal Heterogeneous Networks

  • Batteram H.
  • Chen X.
  • Louwdyk F.
  • Mukhopadhyay A.
  • Sharma A.
  • Zhao Z.

Wireless operators worldwide are struggling with network congestion following explosion of mobile data traffic over the last several years. In many countries, spectrum addition is not an option. Improvement in spectral efficiency is not keeping up with traffic growth. Thus the only option to add network capacity is to re-use ...

On the Performance of Multi-tier Heterogeneous Networks under LoS and NLoS Transmissions

  • Jiaqi Wang
  • Lopez-Perez D.
  • Ming Ding
  • Xiaoli Chu

Heterogeneous networks (HetNets) with a multi-tier structure have been considered as a promising method to provide high quality of service to mobile users. The dense deployment of small-cell base stations (BSs) implies short distances between BSs and users. It is therefore likely that users will see line-of-sight (LoS) links from ...

Resource Scheduling for Mixed Traffic Types with Scalable TTI in Dynamic TDD

  • Baracca P.
  • Galati Giordano L.
  • Liao Q.
  • Lopez-Perez D.

The idea behind this paper is to analyse the performance benefits of a user-centric scheduling approach, exploiting the combination of the promising advantages of a flexible duration of the transmission time interval (TTI) available in the fifth generation (5G) and the dynamic Time Division Duplex (TDD) where downlink (DL) and ...

Performance Comparison and Optimization of ICN Prototypes

  • Ali Safari Kathuoni
  • Gallo M.
  • Luca Venturini
  • Marco Mellia
  • Perino D.

Information Centric Networking paradigm is now a solid proposal to replace and update the original Internet design. While the research community is still working on technical improvement, the technology has reached a stage that allows the design, testing and deployment of ICN specific applications. To this goal, key is the ...

Extracting Location Information Content from RF Fingerprints

  • Claussen H.
  • Dashti M.

Location Fingerprinting (LF) is a promising localization technique that enables many commercial and emergency location-based services (LBS). Significant efforts have been invested in enhancing LF using advanced machine learning methods. Most of these techniques require a huge amount of geo-tagged training data to achieve significant improvement in accuracy. This increases ...

Transient analysis of Virtual Dictionary Extension compression method

  • Farkas L.
  • Finta I.
  • Sergyán S.
  • Szénási Sándor

The application of lossless data compression meth- ods may significantly decrease the required storage space or throughput. The quality of the compression ratio is influenced by several factors, like the available space and processing resources and the statistical characteristic of the data to be compressed. In this contribution we will ...

Memory-rate trade-off for caching and delivery of correlated sources

  • Erkip E.
  • Hassanzadeh P.
  • Llorca J.
  • Tulino A.

In cache-aided networks, due to the multicast nature of wireless signals, coded multicast delivery results in significant load reductions that are proportional to the aggregate cache size. State of the art caching schemes exploit exact content reuse across the network, which, due to the personalized nature of the content consumed ...