Visualization of three-dimensional structures shed by an oscillating beam

  • Agarwal A.
  • Jeffers N.
  • Nolan K.
  • Stafford J.

Piezoelectric fans have been studied extensively and are seen as a promising technology for thermal management due to their ability to provide quiet, reliable cooling with low power consumption. The fluid mechanics of an unconfined piezoelectric fan are complex which is why the majority of the literature to date confines ...

Combined Conformal Strongly-Coupled Magnetic Resonance for Efficient Wireless Power Transfer

  • Augustine Ikpehai
  • Bamidele Adebisi
  • Gacanin H.
  • Khaled M. Rabie
  • Kharel Rupak
  • Matjaz Rozman
  • Michael Fernando

This paper proposes a hybrid circuit between a conformal strongly-coupled magnetic resonance (CSCMR) and a strongly-coupled magnetic resonance (SCMR), for better wireless power transmission (WPT). This combination promises to enhance the flexibility of the proposed four-loop WPT system. The maximum efficiency at various distances is achieved by combining coupling-matching between ...

On the Split-TCP Performance Over Real 4G LTE and 3G Wireless Networks

  • Calin D.
  • Kim B.

The global mobile traffic is growing exponentially, and currently more than 90% of the internet traffic depends on Transmission Control Protocol (TCP) for reliable transmission. However, it is well known that TCP performs quite poorly over unreliable wireless networks, while its dynamic TCP flow control is sensitive to congestion events ...

Advanced C plus L-Band Transoceanic Transmission Systems Based on Probabilistically Shaped PDM-64QAM

  • Brindel P.
  • Buchali F.
  • Charlet G.
  • Ghazisaeidi A.
  • Hu Q.
  • Meseguer A.
  • Renaudier J.
  • Rios-Mueller R.
  • Ruiz I.
  • Schmalen L.
  • Tran P.

We review the most recent advanced concepts and methods employed in the cutting-edge spectrally efficient coherent fiber-optic transoceanic transmission systems, such as probabilistic shaping, adaptive digital nonlinear compensation, rate-adaptive spatially coupled low-density parity check codes, and dual-band C+L-band transmission. Building upon all these concepts and methods, we demonstrate transmission of ...

A FLEXIBLE 5G WIDE AREA SOLUTION FOR TDD WITH ASYMMETRIC LINK OPERATION

  • Berardinelli G.
  • Frederiksen F.
  • Mogensen P.
  • Pedersen K.

A flexible multi-service 5G wide area (WA) solution for time division duplex (TDD) operation is outlined in this article. In particular, the associated frame design is in focus. Given the fundamental tradeoffs between capacity, coverage, latency, and reliability, a flexible solution that allows optimization on a per-link basis is proposed. ...

Hashing Garbled Circuits for Free

  • Fan X.
  • Ganesh C.
  • Kolesnikov V.

We show how to generate Garbled Circuit (GC) hash at no extra overhead during GC generation. This is in contrast with state-of-the-art approaches, which hash GCs at computational cost of about $6times$ of GC generation. GC hashing is at the core of the cut-and-choose technique of GC-based secure function evaluation ...

Detection as a service: An SDN application

  • Kantola R.
  • Khatri V.
  • Monshizadeh M.

In a cloud computing environment, future networks will most probably utilize network functions virtualization (NFV) which is a network architecture concept that proposes virtualizing network node functions into “building blocks” or entities that may be operationally connected or linked together to provide services. However, applying these mechanisms brings security challenges. ...

Tunable X-Band Optoelectronic Oscillators Based on External-Cavity Semiconductor Lasers

  • Chang C.
  • Choi D.
  • Citrin D.
  • Dong J.
  • Lelarge F.
  • Locquet A.
  • Martinez A.
  • Merghem K.
  • Ramdane A.
  • Wishon M.

Laser diodes with optical feedback can exhibit periodic intensity oscillations at or near the relaxation-oscillation frequency. We demonstrate optoelectronic oscillators based on external-cavity semiconductor lasers in a periodic dynamical regime tunable over the entire -band. Moreover, unlike standard optoelectronic oscillators, we need not employ the time-dependent optical intensity incident on ...

Dielectric powder loaded coaxial-cavity filters

  • Bulja S.
  • Doumanis E.
  • Pivit F.

In this paper we demonstrate the use of low-loss powders in the design and fabrication of RF filters. Initially, several different powders are tested for their RF performance - in particular their relative dielectric permittivity and loss tangent. Then, based on the information obtained in this way, the best performance ...

Record high power budget transmissions at 1.55µm for 10Gb/s and 28Gb/s access networks

  • Brenot R.
  • Caillaud C.
  • Debregeas H.
  • Pommereau F.
  • Provost J.

We present an electro-absorption modulated laser with 6dBm modulated power leading to record power budget NRZ transmissions at 1.55µm: 37dB at 10Gb/s over 50km and 30dB at 28Gb/s over 10km with a pre-amplified photodiode.

Hyper-Wideband Wireless Link with 12GHz Instantaneous Bandwidth Enabled by Silicon Photonics

  • Chang C.
  • Chen Y.
  • Chimot N.
  • De Valicourt G.
  • Dong P.
  • Eggleston M.
  • Itoh T.
  • Kaneda N.
  • Kim K.
  • Lelarge F.
  • Sinsky J.
  • Wu M.

We demonstrate the first silicon photonics enabled hyper-wideband wireless error-free link with instantaneous bandwidth greater than 85% of the center frequency (12GHz/14GHz). Silicon microwave photonics enables simple hyper-wideband phase encoding for RF CDMA and tunable filtering for interference rejection that surpasses conventional wireless technology.

80Gb/s PDM-QPSK PIC-to-PIC Experiment based on Fully Integrated Hybrid Silicon-based Wavelength-tunable Transmitter and Monolithic Coherent Receiver

  • Brenot R.
  • Chang C.
  • Chen Y.
  • De Valicourt G.
  • Dong P.
  • Eggleston M.
  • Kim K.
  • Lee S.
  • Maho A.
  • Sinsky J.
  • Zhu C.

We reported the first hybrid III-V/Si integrated QPSK wavelength-tunable transmitter providing high-speed (>23GHz) and low Vp (~1.3V). 80 Gbit/s PDM-QPSK signal transmission over 100 km with such integrated hybrid transmitter as well as a fully packaged silicon-based coherent receiver is demonstrated.

Signalling Minimization Framework for Short Data Packet Transmission in 5G

  • Ambrosy A.
  • Aziz D.
  • Bakker H.
  • Liao Q.

Current cellular networks are mainly designed for the transmission of broadband packet payloads. Due to this, signalling mechanisms are inefficient for small packet payloads. Future trends predict an explosion of sporadic small packet transmissions due to machine type and always-ON type applications. Therefore, we target signalling minimization in 5G. In ...

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 ...

Traffic profile based clustering for dynamic TDD in dense mobile networks

  • Baracca P.

Due to the wide spread of many heterogeneous applications and services, the traffic profile of future mobile networks is foreseen to become more variable in time and among different base stations (BSs). Dynamic time division duplex (TDD) has been recognized as an important enabler to cope with this traffic variability, ...

Low-Latency Communications in LTE Using Spatial Diversity and Encoding Redundancy

  • Claussen H.
  • Kucera S.
  • Yu Yu
  • Yuto Lim

Control of data delivery latency in wireless mobile networks is an open problem due to the inherently unreliable and stochastic nature of wireless channels. This paper explores how the current best-effort throughput-oriented wireless services could be evolved into latency-sensitive enablers of new mobile applications such as remote 3D graphical rendering ...

LWIP and Wi-Fi Boost Link Management

  • K S.
  • Kim B.
  • Ling J.
  • Lopez-Perez D.
  • Ming Ding
  • Vasudevan S.

3GPP LWIP Release 13 technology and its prestandard version Wi-Fi Boost have recently emerged as an efficient LTE and Wi-Fi integration at the IP layer, allowing uplink on LTE and downlink on Wi-Fi. This solves all the contention problems of Wi-Fi and allows an optimum usage of the unlicensed band ...

Nonlinear Fourier transform for optical data processing and transmission: Advances and perspectives

  • Jaroslaw E. Prilepsky
  • Leonid L. Frumin
  • Morteza Kamalian
  • Sander Wahls
  • Sergei K. Turitsyn
  • Stanislav A. Derevyanko
  • Thai Le S.

Fiber-optic communication systems are nowadays facing serious challenges due to fast growing demand on capacity from various new applications and services. It is now well recognised that nonlinear effects limit the spectral efficiency and transmission reach of modern fiber-optic communications. Nonlinearity compensation is therefore widely believed to be of paramount ...

Distribution Reshaping for Massive Access Control in Cellular Networks

  • Chao H.
  • Chen Y.

A massive number of the fifth generation (5G) terminals in the network brings challenges to random access design, especially for machine-type communications (MTC). Based on 3rd Generation Partnership Project (3GPP) traffic model, available solutions such as extended access barring (EAB), cannot support all the MTC devices accessing into the network ...

Channel Coding for Ultra-Reliable Low-Latency Communication in 5G Systems

  • Jayasinghe K.
  • Sybis M.
  • Venkatasubramanian V.
  • Vukadinovic V.
  • Wesolowski K.

This paper investigates block error rate (BLER) performance and computational complexity of candidate channel coding schemes for ultra-reliable low latency communication (URLLC) in 5G. The considered candidates are the same as those identified in 3GPP: turbo, LDPC, polar, and convolutional codes. Details of code constructions and decoding algorithms are provided ...