Energy-Efficient Multicell Multigroup Multicasting with Joint Beamforming and Antenna Selection

  • Chatzinotas S.
  • Juntti M.
  • Ottersten B.
  • Pennanen H.
  • Tervo O.
  • Tran L.

© 1991-2012 IEEE. This paper studies the energy efficiency and sum rate tradeoff for coordinated beamforming in multicell multiuser multigroup multicast multiple-input single-output systems. We first consider a conventional network energy efficiency maximization (EEmax) problem by jointly optimizing the transmit beamformers and antennas selected to be used in transmission. We ...

High Capacity Transmission with Few-Mode Fibers

  • Agrell E.
  • Aikawa K.
  • Awaji Y.
  • Eriksson T.
  • Furukawa H.
  • Luis R.
  • Maruyama R.
  • Puttnam B.
  • Rademacher G.
  • Ryf R.
  • Wada N.

IEEE We experimentally investigate high-capacity fewmode fiber transmission for short and medium-haul optical links. In separate experiments, we demonstrate C + L band transmission of 283 Tbit/s over a single 30 km span and recirculating loop transmission of 159 Tbit/s over 1045 km graded-index three mode fiber. The first experiment ...

Automated iBeacon-Based Community Detection: Data-Driven Approach to Recover Face-to-Face Interaction from Noisy & Incomplete Sensor Data

In this paper, we address the detection of face-to-face (f2f, i.e., physical) interactions between people from noisy sensor data and determination of groups and communities that individuals form in the physical world. The sensor data may include, for example, received signal strength indicator (RSSI) information based on iBeacon, Wi-Fi, Zigbee ...

Of Kernels and Queues: when network calculus meets analytic combinatorics

  • Bouillard A.
  • Comte C.
  • De Panafieu E.
  • Mathieu F.

Stochastic network calculus is a tool for computing error bounds on the performance of queueing systems. However, deriving accurate bounds for networks consisting of several queues or subject to non-independent traffic inputs is challenging. In this paper, we investigate the relevance of the tools from analytic combinatorics, especially the kernel ...

A Simplified Dielectric Material Characterization Algorithm for Both Liquids and Solids

  • Bao J.
  • Bao X.
  • Kil D.
  • Liu S.
  • Liu Z.
  • Nauwelaers B.
  • Ocket I.
  • Puers R.
  • Schreurs D.
  • Zhang M.

IEEE A simplified dielectric material characterization technique that combines an equivalent impedance algorithm and a general “line–line” trace method is introduced. The technique is applicable to every type of transmission lines. Due to the convenient fabrication and the allowance of integration with various polymers, coplanar waveguide transmission lines integrated with ...

Fiber-optic transmission and networking: the previous 20 and the next 20 years

  • Chraplyvy A.
  • Neilson D.
  • Winzer P.

Celebrating the 20th anniversary of Optics Express, this paper reviews the evolution of optical fiber communication systems, and through a look at the previous 20 years attempts to extrapolate fiber-optic technology needs and potential solution paths over the coming 20 years. Well aware that 20-year extrapolations are inherently associated with ...

Zero-Power Sensors for Smart Objects: Novel Zero-Power Additively Manufactured Wireless Sensor Modules for IoT Applications

  • Bito J.
  • He X.
  • Hester J.
  • Kimionis J.
  • Lin T.
  • Su W.
  • Tentzeris M.

Wireless sensors are pervasive today for applications spanning environmental sensing, safety, health, structural integrity, smart homes, and smart cities. Implementations of wireless sensor networks and Internet of Things (IoT) systems have typically relied on power supplied by batteries, which have a limited lifetime and pose the increased burden on users ...

Link Adaptation for Grant-Free Uplink URLLC Transmissions

  • Abreu R.
  • Berardinelli G.
  • Jacobsen T.
  • Kovacs I.
  • Mogensen P.
  • Pedersen K.

Ultra-reliable and low-latency communication (URLLC) represents the most challenging set of services for 5G new radio. Uplink Grant-free transmissions is recognized as a promising solution to meet the ambitious URLLC target (1 ms latency at a 99.999% reliability). However, achieving such a high reliability comes at the expense of poor ...

On the Achievable Rates over Collision-Prone Radio Resources with linear receivers

In this paper, we discuss the achievable transmission rates over collision-prone radio resources shared by a number of devices, representative of novel Internet-of-Things (IoT) scenarios. We consider Maximum Ratio Combining (MRC) and Minimum Mean Square Error (MMSE) receivers at the base station, and derive the relationship between target failure probability ...

A MC-CDMA system based on orthogonal filter banks of wavelet transforms and partial combining

  • Ahmadi M.
  • Alirezaee S.
  • Heydari R.
  • Shahbaztabar D.

© 2018 Elsevier GmbH Multi Carrier Code Division Multiple Access (MC-CDMA) is an appropriate modulation technique for high data rates. In this modulation scheme, employing of combining techniques are unavoidable for restoring orthogonality between different user signals. In this paper, the combining techniques of a MC-CDMA based on wavelet transform ...

Galerkin-Legendre spectral schemes for nonlinear space fractional Schrödinger equation

  • Fan W.
  • Jiang X.
  • Wang C.
  • Zhang H.

© 2017, Springer Science+Business Media, LLC, part of Springer Nature. In the paper, we first propose a Crank-Nicolson Galerkin-Legendre (CN-GL) spectral scheme for the one-dimensional nonlinear space fractional Schrödinger equation. Convergence with spectral accuracy is proved for the spectral approximation. Further, a Crank-Nicolson ADI Galerkin-Legendre spectral method for the two-dimensional ...

Introduction to the Special Section on the 2017 IEEE BCTM and IEEE CSICS Conferences

  • Shahramian S.
  • Wang H.

This Special Section of the IEEE Journal of Solid-State Circuits Features expanded versions of key invited papers that were presented at the 2017 IEEE Bipolar and BiCMOS Circuits and Technology Meeting (BCTM), held at Miami Marriott Biscayne Bay, Miami, FL, USA, on October 19–21, 2017, and the 2017 IEEE Compound ...

Reliability Oriented Dual Connectivity for URLLC services in 5G New Radio

  • Gilberto Berardinelli
  • Laselva D.
  • Melisa Lopez
  • Nurul Mahmood
  • Pedersen K.

Novel solutions are required to meet the stringent reliability and latency requirements targeted for the Ultra Reliable Low Latency Communication service class, which emerged with the introduction of 5G new radio. This paper analyses reliability-oriented multi-Connectivity - where the same data packet is independently transmitted through multiple links - as ...

Centralized Joint Cell Selection and Scheduling for Improved URLLC Performance

  • Mogensen P.
  • Pedersen K.
  • Steiner J.

A centralized joint cell selection and scheduling policy for ultra-reliable low latency communication (URLLC) is studied in this paper for the 5G new radio (NR). A low complexity cell association and scheduling algorithm is proposed, while maintaining attractive performance benefits. By being able to centrally control from which cells the ...

On the Complexity of Restoring Corrupted Colorings

In the probrFix problem, we are given a graph $G$, a (non-proper) vertex-coloring $c : V(G) to [r]$, and a positive integer~$k$. The goal is to decide whether a proper $r$-coloring $c'$ is obtainable from~$c$ by recoloring at most $k$ vertices of $G$. Recently, Junosza-Szaniawski, Liedloff, and Rz{k{a}}{.z}ewski [SOFSEM 2015] ...

Fast Small Cell Access

Offloading traffic to small cells is one of the key enablers in achieving high peak data rates in a heterogeneous cellular network deployment. However, to maintain the benefit of robust mobility offered by the macro cell layer, ideally the connection to the macro cell is still maintained even when bulk ...

Temporal Filter Parameters for Motion Pattern Maps

  • O'Gorman L.

There are many video analysis applications in which the flow of people or traffic over time is of more interest than tracking the discrete objects contained. Motion pattern maps, loosely called heat maps, can show accumulated activity over time via temporal filtering. In this paper, we examine three parameters that ...

vNS: a modular programmable virtual network switch

  • Gallo M.
  • Pianese F.

Virtual software switches are evolving: from simple communication facilities connecting virtual machines to the outside network, they are growing into complex subsystems supporting an increasing number of functionalities at multiple network layers. In line with recent trends introducing stateless and stateful processing in virtual switches, we present in this poster ...

Saccadic eye movements estimate prolonged time awake

  • Gould Kristian
  • Haeggstrom Edward
  • Muller K.
  • Pettersson Kati
  • Tietavainen Aino

This study describes for the first time that the length of overall time awake of a person can be estimated by analysing eye movements that have been measured with electro-oculography in a saccade task repeatedly up till 54 hours. Fatigue and fluctuation of vigilance is one of the main causes ...

NOKIA Bell Labs & ION demonstrate ODTN phase 1.0 at Telefónica Lab

  • Atkinson G.
  • Pham Van Q.
  • Tancevski L.
  • Thottan M.
  • Verchere D.

NOKIA Bell Labs and ION realized and demonstrated with Telefónica at Telefonica Lab ODTN project phase 1.0 realization involving the configuration and control of NOKIA transponders with the capabilities of OpenConfig/NETCONF agent and with ONOS Controller integrating NOKIA device NETCONF drivers at its South Bound Interface and Transport API (TAPI) ...