The case for a virtualized residential gateway
- Hernandez-Valencia E.
- Jansen A.
- Ongena L.
- Weishaeupl T.
Virtualized Residential Gateway deployment is a critical strategy to address downward ARPU pressures in residential service delivery while improving subscriber loyalty and service velocity.
Analysis of Handover Failures in Heterogeneous Networks with Fading
- Ismail Guvenc
- Karthik Vasudeva
- Lopez-Perez D.
- Meryem Simseky
The handover process is one of the most critical functions in a cellular network, and is in charge of maintaining seamless connectivity of user equipments (UEs) across multiple cells. It is usually based on signal measurements from the neighboring base stations (BSs), and it is adversely affected by the time ...
Spectral-Phase Encoded Optical CDMA Using Coherent Self-Homodyne Detection
- Chen Y.
- Eggleston M.
- Kaneda N.
- Lee S.
- Sakib M.
- Wu M.
A spectral-phase encoded OCDMA system is demonstrated in a back-to-back optic fiber link. Code-division discrimination is successfully achieved using a self-homodyne technique at 500Mb/s channel data rate with a BER of 8.9x10-5 for two simultaneous users. OCIS codes: (060.1660) Coherent communications; (140.4050) Mode-locked lasers; (060.2330) Fiber optics communications.
Discrete-multitone modulation for short distance 100 Gbit/s optical links
- Pilori D.
The commercially available 100 Gbit/s optical channel employs coherent modulation and demodulation allowing transmission over long distances, up to thousands of kilometers, but for short distances the cost of a coherent receiver can be overkill. In literature there are several techniques, based on advanced different digital modulation schemes, that reduce ...
Enhanced Control Signal and Data Detection for 5G Multicarrier Low-Power Communications
- Chen Y.
- Doll M.
As being a complementary technique for Machine Type Communications (MTC) in future 5th Generation (5G) wireless communications, the control mechanism and control signaling should preferably be able to operate at possibly low Signal-to-Noise Ratio (SNR) without interfering the existing cellular network. In this paper, we propose an enhanced mechanism for ...
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 ...