Optimal Relay Placement for WSN-Based Home Health Monitoring System

  • Chen C.
  • Jianhui Zhang
  • Kaikai Chi
  • Yanjun Li

Due to the increasing need of health monitoring at home or in senior center, we study the optimal relay node placement problem for wireless sensor networks with data collection and localization requirements. The problem can be modeled as finding a minimum connected k-dominating set. We consider realistic indoor wireless environment ...

A Distributed eICIC Algorithm for Joint Inter-cell Interference Management and User Attachment in LTE-A HetNets

  • Albert Sung
  • Chandramani Singh
  • Chen C.
  • Liu Y.

In Long Term Evolution-Advanced (LTE-A) heterogeneous networks (HetNets), it is crucial to address the intercell interference and the user attachment problems in order to obtain good network performance. Moreover, the two problems are coupled and therefore must be tackled together. Based on potential game formulation, we jointly optimize almost blank ...

Joint Perturbative Nonlinear Post-Compensation of a Quad-Carrier PDM-16QAM Super-Channel

  • Charlet G.
  • Dar R.
  • Ghazisaeidi A.
  • Renaudier J.
  • Rios Muller R.
  • Tran P.

A novel perturbative-based algorithm to jointly compensate intra and inter-channel nonlinearities of the subcarriers of a super-channel is introduced for the first time, and demonstrated in a transmission experiment of a quad-carrier 30.75 GBd PDM-16QAM over transoceanic distances.

Convergence of the Generalized Alternating Projection Algorithm for Compressive Sensing

  • Jiang H.
  • Wilford P.
  • Yuan X.

The convergence of the generalized alternating projection (GAP) algorithm is studied in this paper to solve the compressive sensing problem y = Ax + n. By assuming that A Ats is invertible, we prove that GAP converges linearly within a certain range of step-size under the restricted isometry property (RIP) ...

64 Gb/s Duobinary Transmission for Chip-to-Module Electrical Communication

  • Guy Torfs
  • Jan De Geest
  • Johan Bauwelinck
  • Joris Van Kerrebrouck
  • Kozicki B.
  • Sinsky J.
  • Timothy De Keulenaer
  • Xin Yin
  • Yu Ban

This paper presents a theoretical comparison between traditional non-return-to-zero, PAM4 and duobinary signaling as ways to achieve high serial data rates over copper. From this analysis, the channels for which duobinary is able to provide the optimal solution are discussed. A practical proof of the merits of duobinary is given ...

The Future of the Internet of Things

  • Mullany F.
  • Viswanathan H.

Machine communication for monitoring and remote control predates the Internet, with Supervisory Control and Data Acquisition systems used to monitor and control machines since the 1960s. The deployment of devices for monitoring and control has accelerated in the recent years aided by ubiquitous wireless connectivity and declining communication costs. Nevertheless, ...

Semiconductor optical amplifier for next generation of high data rate optical packet-switched network

  • De Valicourt G.
  • Mestre Adrover M.
  • Pointurier Y.

This chapter discusses the general context of slot switched network with possible slot blocker implementation in section 2. In section 3, we focus on SOA devices. First, we present the evolution of SOA with the development of optical communication systems. The level of knowledge and development on this technology are ...

RSSI localization with Gaussian Processes and Tracking

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

Location Fingerprinting (LF) is a promising localization technique that enables many commercial and emergency location-based services (LBS). While significant efforts have been invested in enhancing LF using advanced machine learning methods, the configuration effort required to deploy a LF system remains a significant issue. In this paper a practical LF ...

Two-Tiered Relay Node Placement for WSN-based Home Health Monitoring System

  • Chen C.
  • Jianhui Zhang
  • Kaikai Chi
  • Yanjun Li

Motivated by the needs of health monitoring at home (or a senior center) using a sensor network system, we study the problem of how to place the relay nodes so that the data collection and localization requirements of the monitoring system can be satisfied. By exploiting the inherent nature of ...

Chapter 9 (METIS Book) Multi-node Coordination

  • Aziz D.
  • Baracca P.
  • Fantini Roberto
  • Thiele L.
  • Zirwas W.

Performance in a wireless network strongly depends on user position in the cell, with users in the cell border typically experiencing much lower throughputs than those nearer to the transmitting base station. This is mainly due to the presence of inter cell interference, generated by concurrent transmissions in other cells. ...

Dual-carrier Direct Detection Scheme for Metro-Area Optical Networks

  • Kakande J.
  • Sethumadhavan C.

A novel technique in which full optical field estimation is performed at a dual-lane, direct detection receiver, is proposed here. Preliminary results indicate the ability to achieve metro-area link distances, without being subject to chromatic dispersion as a limiting factor.

Limits of nonlinear compensation in massive WDM systems

  • Dar R.
  • Winzer P.

We examine the maximal achievable gains of digital back-propagation (BP) in typical modern WDM systems. We show that in a fully loaded WDM environment, the potential benefit of single-channel BP is limited to ~ 0.5dB improvement in the maximal SNR, and about 1dB and 1.2dB in the case of 3 ...

A Code-Aided Expectation-Maximization Algorithm for 32 Gbaud PolDM-16QAM Transmission Nonlinear-Phase Noise Compensation

  • Buelow H.
  • Idler W.
  • Kschischang F.
  • Pan C.
  • Schmalen L.

We propose an algorithm to mitigate optical nonlinearity. It utilizes both the time correlation of nonlinearity, and a soft-decision error control code to achieve an optical signal to noise ratio gain of 0.3 dB and a launch power gain of 2 dB.

H2C: a Hierarchical Two-layer Caching Design for Networked System

  • Gallo M.
  • Lorenzo Saino
  • Perino D.

Packet-level caching is becoming increasingly important as it is exploited by several network applications today, and proposed as basic building block of future Internet architectures. This demands for high-speed caching designs that leverage heterogeneous storage technologies to scale the storage space up to TBs, and off-the-shelf general purpose hardware to ...

Fixed Access Unbundling: the past, present, and future

  • Damas F.
  • Fredricx F.
  • Kozicki B.
  • Oberle K.
  • Olaziregi N.
  • Sharpe R.

Multi-operator access over a common shared access infrastructure has in the past been investigated and deployed in the field in several forms of local loop unbundling (mainly Ethernet-level bitstream access). It enables telecommunication operators lacking wireline access infrastructure to provision services (e.g. high-speed Internet , IPTV) to customers connected to ...

Scaling Laws for Maximum Coloring of Sparse Random Geometric Graphs

  • Borst S.
  • Bradonjic M.

We examine maximum vertex coloring of random geometric graphs, in an arbitrary but fixed dimension, with a constant number of colors. Since this problem is neither scale-invariant nor smooth, the usual methodology to obtain limit laws cannot be applied. We therefore leverage different concepts based on subadditivity to establish convergence ...

55 Tb/s Transmission over Transoceanic Distances using ultra low loss fiber and low complexity perturbative nonlinear mitigation

  • Awwad E.
  • Brindel P.
  • Charlet G.
  • Ghazisaeidi A.
  • Schmalen L.
  • Simonneau C.
  • Tran P.

demonstrate 55Tb/s transmission over transoceanic distances with an average channel rate above 300Gb/s while keeping a low consumption of 226pW/bit/s for transmission line, thanks to ultra low loss fiber, advanced nonlinear mitigation technique.

MMSE PROTOCOL FOR A DOUBLE RELAY CHANNEL IN CELLULAR SYSTEMS

  • Fernando Rosas
  • Marc Moonen
  • Rodolfo Torrea-Duran
  • Sofie Pollin
  • Tsiaflakis P.
  • Zuhaib Khan Zii Khan

The continuous growth of demand for wireless connectivity has turned bandwidth into a scarce resource that should be carefully managed. A common solution is to assign disjoint portions of the bandwidth to different users, but the portion size decreases as the number of users grows. An alternative solution is to ...

New approach to Bayesian high-dimensional linear regression

  • Jalali S.
  • Maleki A.

Consider the problem of estimating parameters Xn E Rn, generated by a stationary process, from m response variables Y m = AXn + Zm, under the assumption that the distribution of Xn is known. This is the most general version of the Bayesian linear regression problem. The lack of computationally ...

Non-Orthogonal Downlink Transmissions Using Module Multilevel Codes

  • Claussen H.
  • Fang D.
  • Zhang M.

In this paper, a new approach to non-orthogonal multiuser downlink transmission, referred to as modulo multilevel codes based multiuser superposition transmissions (MMC-MUST), is proposed, which addresses the main issues of existing solutions by 1) overcoming the challenge faced by NOMA when users have the similar channel conditions; 2) adopting the ...