Bell Labs 5G UFMC Air Interface Demonstrator

  • Heimpel H.
  • Koppenborg J.
  • Mayer H.
  • Samardzija D.
  • Schaich F.
  • Wild T.

A new waveform approach “Universal Filtered Multi-Carrier” (UFMC), being better suited for 5G has been invented by Bell Labs. Simulation and trials with an 5G UFMC Air Interface demonstrator to show the benefits of this new approach are discussed

3GPP ACLR measurements for Millimeter-Wave Wireless Backhaul Link with Self-Heterodyning Mixing

  • Ferling D.
  • Luz G.
  • Maier S.
  • Pascht A.
  • Schlesinger H.
  • Woerner S.
  • Yu X.

This paper analyzes the signal quality achievable with a novel system architecture for low-power small cell remote units with integrated millimeter-wave wireless backhaul. The data signal on the backhaul link uses the same 3GPP compliant signal as with the access link serving the users. In contrast to existing systems, the ...

How a "Wi-Fi first" strategy benefits EMEA MSOs

  • Davidson S.

Wi-Fi first presents a market opportunity for MSOs. Voice over Wi-Fi enabled devices default to using the cable operator's Wi-Fi network, and in the case of smartphones switch to cellular when out of Wi-Fi range.

Microfluidic Cooling of Photonic Integrated Circuits (PICS)

  • Blythman R.
  • Donnelly B.
  • Ehrlich L.
  • Enright R.
  • Hernon D.
  • Jeffers N.
  • Nolan K.
  • O'Connor J.
  • Punch J.
  • Sexton A.
  • Stafford J.
  • Waddell A.

It is widely believed that the current telecommunications network is required to grow by more than 10X in the coming years to satisfy the demands placed on it by an increasing number of connected devices, in particular content streaming to mobile devices. To enable this growth, significant enhancement in the ...

Bayesian sequential parameter estimation

  • Mai T.
  • Wilson S.

A new approach of sequential parameter learning is proposed for a special general class of state-space model where the state equation is linear with Gaussian noise. In this approach, the filtering density of the state variable and unknown parameters is jointly and iteratively approximated by either Gaussian density or mixture ...

Transport-SDN application to dynamically optimize deployed optical transport networks

  • Dembeck L.
  • Ilchmann F.
  • Leven A.
  • Milbrandt J.

Evolution from todays statically operated wavelength division multiplex (WDM) networks towards future transport software defined networking (T-SDN) controlled flexible networks is in progress, enabling both an easier network set-up as well as network operation. To support this flexible approach autonomous optimization of network resources especially within deployed large WDM networks ...

5G MM-Wave Communications -- Potential & Risks

  • Braun V.

Slideset for German Bell Labs Future X Day, 20-Nov-2014

Real-time implementation of high-speed digital coherent transceivers

  • Pfau T.

The real-time implementation of digital coherent receivers for 100 Gbit/s data rates and beyond pushes the limits of all the technologies involved. Digital-to-analog and analog-to-digital converters with ultra-high sampling rates need to be co-integrated with a large scale digital signal processing (DSP) engine, and highly sophisticated algorithms have to be ...

Insight-Driven IMS Orchestration

  • Hilt V.

Insight-Driven IMS Orchestration Presentation

Blue Cube

  • Maier S.

Energy autonomous wireless small cell enabling simple and cost-effective deployment

Identifying user activity from truncated-URL web traces

  • Ajwani D.
  • Mai T.
  • Sala A.

Understanding user behavior is essential to personalize and enrich a user's online experience. While there are significant benefits to be accrued from the pursuit of personalized services based on a fine-grained behavioral analysis, care must be taken to address user privacy concerns. The ideal data set used for such an ...

5G waveform enabling the support of 100x devices with up to 10x lower latency

  • Koppenborg J.
  • Schaich F.
  • Wild T.

One driver for 5G is the vision to support a multitude of service and device classes. Bell Labs has invented a new waveform and access structure: Universal-Filtered OFDM (UF-OFDM) with an unified frame structure for handling this heterogeneity. This will enable a highly scalable and flexible system with improved spectral ...

Towards secure European telecommunication networks - Celtic-Plus Success Story SASER

  • Lach E.

This is an input for one Success Story related to the SASER Conference in the frame of the project Mid-Term-Review of the Celtic-Plus project SASER. The article will be published in Celtic-Plus News in the EURESCOMmesage by Celtic-Office SASER likely in October. Our input describes the demonstrator of ALcatel-Lucent shown ...

Load-aware Transparent Reach Maximization in Flexible Optical Networks

  • Morea A.

We propose a novel load-aware power-selection strategy for maximizing the transparent reach in dispersion-uncompensated flexible optical networks with coherent modulation formats, and we quantify the savings in opto-electronic regenerations with respect to using the standard full-load transparent reach.

Asymmetric Bidirectional Optical Connections

  • Morea A.
  • Verchere D.

Asymmetric bidirectional routing for more cost-efficient optical networks based on IP-over-WDM architectures leveraging on elasticity saves 13% optoelectronic devices.

Forward Error Correction Codes for Polarization Multiplexed Optical Transmissions with Polarization Dependent Loss

  • Aref V.
  • Buchali F.
  • Leven A.
  • Schmalen L.

We study long-haul coherent optical transmissions suffering from polarization dependent loss (PDL). Using simulation results, the channel is modeled as parallel channels with randomly distributed noises. By characterizing the noise, we show how to minimize the PDL penalties by using spatially coupled LDPC codes and interleaving data between two orthogonal ...

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

  • 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 0.2 dB experimentally.

How the tolerance to optical filtering impacts the number of optoelectronic regenerators in the core DWDM network

  • Morea A.
  • Renaudier J.
  • Zami T.

This study gives insight on what the maximum filtering-induced penalty should be to maintain reasonable impact of tight filtering on the total number of required transponders for 2 different backbone networks.

Sub-graph based Rerouting Algorithm for Flexible Optical Networks Incorporating Fully Utilized Resources

  • Dembeck L.
  • Ilchmann F.
  • Leven A.

In this work, we employ a novel sub-graph (SG) based rerouting algorithm to reduce the path computation effort. Simulation results show that our algorithm needs significantly less path computations to achieve blocking probabilities comparable to brute-force (BF) search results.

Hierarchical Caching for Online Video

  • Akhtar S.
  • Beck A.
  • Rimac I.

We survey existing caching algorithms for their suitability to online video in a hierarchical cache. We have proposed a new algorithm based on additional requirements for online video. We propose new evaluation metrics for online video caching such as hit-rate, replacement rate and ability to recover quickly from cache popularity ...