Commuter-Adjusted Services Cloud

  • Brown J.
  • Gardell P.
  • Wilkin G.

What is a Commuter-Adjusted population? For the purposes of this description we will describe it as “Large amounts of people and things moving in a regular pattern, usually linked to work activities”1. This Commuter-Adjusted population, shifts by as much as 78% in large metropolitan areas including New York City, District ...

Predictive and Dynamically Adaptive Solution for Cost Effective IoT Connectivity

  • Laha S.
  • Sudarsan P.

We are planning to attend the following IoT conference in Chicago http://www.remotemagazine.com/internetofthings/ on March 29 and 30, 2017. The abstract which is due on Oct 25th is attached.

Enhancing Coexistence in the Unlicensed Band with Massive MIMO

  • Bonfante A.
  • Claussen H.
  • Galati Giordano L.
  • Garcia Rodriguez A.
  • Geraci G.
  • Lopez-Perez D.

We consider cellular base stations (BSs) equipped with a large number of antennas and operating in the unlicensed band. We denote such system as massive MIMO unlicensed (mMIMO-U). We design the key procedures required to guarantee coexistence between a cellular BS and the nearby Wi-Fi devices. These include: neighboring Wi-Fi ...

Design and Analysis of a New Massive MIMO Cell-Edge-Aware Precoding Scheme

  • Andrews J.
  • Geraci G.
  • Quek T.
  • Yang H.

In this paper, we propose cell-edge-aware (CEA) zero forcing (ZF) precoding for downlink massive MIMO cellular networks. The CEA-ZF precoder exploits the excess spatial degrees of freedom available at massive MIMO base stations (BSs) to suppress inter-cell interference at the most vulnerable neighboring users. We demonstrate that the CEA-ZF precoder ...

Assessment of RF Human Exposure to LTE Small and Macro-Cells: UL Case

  • Conil E.
  • Fetouri B.
  • Grangeat C.
  • Mazloum T.
  • Wiart J.

Small cells, novel low-powered base stations with local range, are nowadays investigated in order to improve the radio coverage and capacity in macro cell layer. The radio frequency exposure induced in such cells is unknown. Hence, we assess in this paper, through experimental measurements, the impact of an LTE small ...

Performance Impact of Idle Mode Capability on Dense Small Cell Networks with LoS and NLoS Transmissions

  • Guoqiang Mao
  • Lopez-Perez D.
  • Ming Ding
  • Zihuai Lin

In dense small cell networks (SCNs), a large number of base stations (BSs) can be put to idle modes without signal transmission, if there is no active user equipment (UE) within their coverage areas. Setting those BSs to idle modes can mitigate unnecessary inter-cell interference and reduce energy consumption. Such ...

StreamApprox: Approximate Computing for Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Hilt V.
  • Le D.
  • Pramod Bhatotia
  • Thorsten Strufe

Approximate computing -- a computing paradigm where an approximate output is sufficient instead of the exact output for a given application workflow -- is increasingly being adopted to accelerate jobs and efficiently utilize the computing resources. The idea behind approximate computing is to compute user's application over a representative sample ...

A Low Profile Pattern Reconfigurable Antenna with Enhanced Bandwidth and Gain

  • Gao F.
  • Lu J.
  • Shen G.
  • Wang W.

A new compact pattern reconfigurable antenna with enhanced bandwidth is presented. The antenna consists of a circular radiation patch, a circular feeding patch and five shorting posts in which four shoring posts are connected to the ground via PIN diodes. By switching PIN diodes on or off, the proposed antenna ...

67.41% Data Rate Improvement by Employing Partial Transmit Sequence PAPR Reduction Algorithm and Volterra Filtering in an OFDM Long-Reach PON

  • Chen J.
  • Chen Y.
  • Chuang C.
  • Hsu C.
  • Liu J.
  • Lu S.
  • Nguyen H.
  • Wang C.
  • Wei C.

We demonstrated a data rate of 60.99 Gbps and 67.41% improvement 60-km OFDM long-reach PON by applying partial transmit sequence and 3rd-order Volterra filtering with 30-dB loss budget and supporting 64 ONUs over 0.95 Gbps/ONU.

56-Gbps 4-PAM System with nearly 40 km Transmission by Using an O-band Electro-Absorption Modulated Laser and a Semiconductor Optical Amplifier

  • Chen J.
  • Chen Y.
  • Chuang C.
  • Hong A.
  • Lin T.
  • Liu J.
  • Nguyen H.
  • Shie B.
  • Wei C.

A 56-Gbps 4-PAM system that uses an electro-absorption modulated distributed feedback laser at wavelength of 1293 nm and a semiconductor optical amplifier is demonstrated for 37.8-km transmission with BER below 7% FEC limit ( 2×10^(-4)).

A High Loss Budget 400-Gbps 8-Channel DWDM-OFDM Long-Reach PON with over 60 km Transmission without any In-line or Pre-Amplifier

  • Chen J.
  • Chen Y.
  • Chuang C.
  • Liu J.
  • Lu S.
  • Nguyen H.
  • Wang C.
  • Wei C.
  • Wu H.

An 8-channel IMDD DWDM-OFDM LR-PON is demonstrated with the data rate of each channel over 50 Gbps and 25-dB loss budget for 60-km transmission without in-line or pre-amplifier and supporting 128 ONUs over 3.1-Gbps/ONU capacity.

A Group-Blind Detection Scheme for Uplink Multi-Cell Massive MIMO

  • Ferrante G.
  • Geraci G.
  • Quek T.

With the reuse of identical training sequences by users in different cells, massive MIMO is severely affected by pilot contamination due to residual error in channel estimation. In this paper, we consider the traditional structure of the training phase, where orthogonal pilot sequences are reused, and analyze a recently proposed ...

A New Method of MIMO-Based Non-Orthogonal Multiuser Downlink Transmission

  • Claussen H.
  • Fang D.
  • Geraci G.

In this paper, we propose a new method for nonorthogonal multiuser downlink transmission, referred to as multiple-input multiple-output lattice partition multiple access (MIMO-LPMA). The new method is based on the combination of user selection, zero forcing beamforming, and LPMA, and it uses N base station antennas to deliver information to ...

Comparison of 51.84-Gb/s SSB PAM4 and OOK Signal In An EML-Based IM/DD 80-km Transmission System

  • Chen J.
  • Chen H.
  • Chen Y.
  • Kaneda N.
  • Lee S.

A comparison between 51.84-Gb/s SSB PAM4 and OOK signal at a transmission distance up to 80 km is experimentally demonstrated at the first time. An EML-Based IM/DD 80-km transmission is achieved by both modulation formats. The experimental result shows that the OOK signal performs 4-dB sensitivity difference better than the ...

Polarization Dependent Loss: How the performance penalty depends on signaling and receiver architecture

  • Arnaud Dumenil
  • Awwad E.
  • Measson C.

Long-haul and metro polarization-multiplexed fiber systems are impaired by polarization dependent loss (PDL) that fundamentally limits their capacity. We observe in this work that, given discrete power-limited signaling, significant gains can be achieved when signaling and channel equalization are properly addressed. More precisely, compared to a conventional processing, up to ...

Mutual Information of Discrete Nonlinear Spectrum

  • Aref V.
  • Buelow H.
  • Schmalen L.

The mutual information in the nonlinear spectrum of a 64-PSK modulated 2-eigenvalue soliton was calculated from statistical draws of noisy signal. 1-bit gain is expected for joint detection of both spectral amplitudes.

800 Gb/s Dual Channel Transmitter with 1.056 Tb/s gross rate

  • Buchali F.
  • Eriksson T.
  • Idler W.
  • Schuh K.
  • Templ W.

We demonstrate generation of a 44Gbaud 64QAM dual polarization dual channel signal from one laser achieving a gross rate of 1.056TBit/s. Fiber transmission reach of over 500 km of SSMF is also demonstrated.

Nonlinear Tolerant Probabilistically Shaped Real-Valued Modulation

  • Buchali F.
  • Eriksson T.
  • Schmalen L.

We apply probabilistic shaping to polarization-multiplexed real-valued signal and show that nonlinear tolerant modulation with higher spectral efficiency compared to phase-conjugated twin-wave with QPSK, is possible.

5Tb/s transmission over 2.2 km of multimode OM2 fiber with wavelength and mode group multiplexing and direct detection

  • Charlet G.
  • Ghazisaeidi A.
  • Renaudier J.
  • Simonneau C.

We demonstrate 5Tb/s bidirectional transmission (2.5Tb/s in each direction) over 2.2km of OM2 fiber using selective excitation of 4 mode groups and WDM multiplexing with DMT modulation format and direct detection.