Augmenting Practical Cross-layer MAC Schedulers via Offline Reinforcement Learning

  • Peter Danielsen
  • Pianese F.

An automated offline design process for optimized cross-layer schedulers can produce augmented scheduling algorithms tailored to a target deployment scenario. We discuss the application of ODDS, a reinforcement learning technique we introduced, for augmenting LTE MAC scheduler algorithms of practical significance. ODDS observes the correlation between the value of a ...

Near Far Effect on Coded Slotted Aloha

  • Alloum A.
  • Cedric Adjih
  • Ehsan Ebrahimi Khaleghi
  • Paul Muhlethaler

Motivated by scenario requirements for 5G cellular networks, we study one among the protocols candidate to the massive random access: the family of random access methods known as Coded Slotted ALOHA (CSA). Recent body of research has explored aspects of such methods in various contexts, but one aspect has not ...

Dynamic IP Tunneling for Next Generation Mobile Networks

  • Calin D.
  • Kim B.
  • Ling J.
  • Viswanathan H.

The paper describes the principles of a novel mechanism that is aiming at providing unprecedented Quality of Experience (QoE) in next generation mobile networks. The main benefits include: (i) enabling dynamic IP tunnel management (establishing and tearing down) with terminating point in the mobile device instead of the traditional base ...

On-off necklace codes for asynchronous mutual discovery

We consider mutual discovery of asynchronous wireless transceivers with a fixed activity ratio. On-off activity patterns are slotted, and repeat in discovery frames. For discovery it has to be guaranteed that the activity patterns of two transceivers are not overlapping. We design necklace codes determining activity patterns to guarantee discovery ...

Beyond the next 700 lot platforms

The emergence of the Internet of Things (IoT) brings us connected devices that are an integral part of the physical world. Everyday devices and things will have considerable computing and communication capabilities, and will turn the real world programmable in a very literal sense. The dawn of the Programmable World ...

Evolution of Social Power for Opinion Dynamics Networks

  • Iglesias Rey S.
  • Silva A.
  • Valenzuela P.

This paper studies the evolution of interpersonal influences in a group as they discuss a sequence of issues following a particular opinion dynamics model. In this work, we propose a general opinion dynamics model and we extend it to the evolution of influence networks using the model of reflected appraisal ...

Spatial mean-field limits for CSMA networks

  • Borst S.
  • Cecchi F.
  • Van Leeuwaarden J.
  • Whiting P.

Random-access algorithms such as the CSMA protocol provide a popular mechanism for distributed medium access control in large-scale wireless networks. Mean-field analysis has emerged as a convenient approach to obtain tractable performance estimates in such networks, but a critical limitation of the classical set-up is that all nodes are assumed ...

Kvazaar 4K HEVC intra encoder on FPGA accelerated airframe server

This paper presents a real-time Kvazaar HEVC intra encoder for 4K Ultra HD video streaming. The encoder is implemented on Nokia AirFrame Cloud Server featuring a 2.4 GHz dual 14-core Intel Xeon processor and Arria 10 PCI Express FPGA accelerator card. In our HW/SW partitioning scheme, the data-intensive Kvazaar coding ...

Delay Comparison of Delivery and Coding Policies in Data Clusters

  • Baccelli F.
  • Bouillard A.
  • Shah V.

A key function of cloud infrastructure is to store and deliver diverse files, e.g., scientific datasets, social network information, videos, etc. In such systems, for the purpose of fast and reliable delivery, files are divided into chunks, replicated or erasure-coded, and disseminated across servers. It is neither known in general ...

Coded fourier transform

  • Avestimehr A.
  • Maddah-Ali M.
  • Yu Q.

We consider the problem of computing the Fourier transform of high-dimensional vectors, distributedly over a cluster of machines consisting of a master node and multiple worker nodes, where the worker nodes can only store and process a fraction of the inputs. We show that by exploiting the algebraic structure of ...

Hybrid Resource Allocation for Millimeter-Wave NOMA

  • António Morgado
  • Christos Politis
  • Gacanin H.
  • Jonathan Rodriguez
  • Kazi Mohammed Saidul Huq

The ever-increasing demand for data traffic for future wireless systems poses challenging requirements for 5G wireless communications, such as high spectral efficiency, better interference management, and extensive connectivity. These challenges open the possibility to use non-orthogonal multiple access (NOMA) schemes in future radio access networks. In these schemes, the users ...

A theoretical analysis of buffer occupancy for Intermittently-Connected Networks

  • Boero L.
  • Cello M.
  • Gnecco G.
  • Marchese M.
  • Patrone F.
  • Sanguineti M.

Network congestion is a well-known problem that may heavily affect the overall network performance. Congestion control approaches in Intermittently-Connected Networks (ICNs) differ from those used in classical networks, since the assumptions of ``universal connectivity{''} of the nodes and ``global information{''} about the network do not hold. In this paper, an ...

MOBILE BANDWIDTH IMPROVEMENT TECHNIQUES

  • Gurbani V.
  • Loreto S.
  • Subramanyan R.

BEHAVIOR RECOGNITION BASED ON WI-FI CSI : PART 1

  • Chen Y.
  • Guo B.
  • Lane N.
  • Liu Y.
  • Yu Z.

Organic visible light communications: Methods to achieve 10 Mb/s

  • Bausi F.
  • Cacialli F.
  • Darwazeh I.
  • Ghassemlooy Z.
  • Haigh P.
  • Le Minh H.
  • Le S.

In this review, we summarise methods towards achieving 10 Mb/s connectivity for visible light communications links utilising organic polymer based light-emitting diodes as the transmitter. We present two different methods; on-off keying supported by least mean squares equalisation and orthogonal frequency division multiplexing without equalisation.

Timing mismatch tolerance of 16QAM OFDM based spectrum slicing optical transmission systems

  • Le S.
  • Megret P.
  • Nguyen T.
  • Wuilpart M.

We propose an effective synchronization and digital signal processing scheme for OFDM spectrum slicing transmissions in the presence of a large timing mismatch. Without loss of generality, a 76.8 Gbaud DP-16QAM OFDM three-slice spectrum slicing system was considered.

Practical LTE and Wi-Fi Coexistence Techniques beyond LBT

  • Khawer M.
  • Ling J.
  • Lopez-Perez D.

Coexistence with Wi-Fi is the key issue for unlicensed band LTE. The main coexistence mechanism is Listen-Before-Talk, whereby radio frequency energy is sensed over a short period of time and compared to a threshold. Given the default energy thresholds, the energy sensing range is actually much less than the cell ...

BGA Interconnection Reliability in Mirrored Module Configurations

Interconnection dimensions are becoming more important due to electrical signal timing requirements and stray effects, such as unwanted inductance, leading to increasingly denser packaging. One way to shorten the signal path is to use mirrored structures, where the components are placed on opposite sides of the printed circuit board (PCB). ...

25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML

The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser (DML) is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-μm directly modulated ...

Proactive Fiber Break Detection Enabled by In-Service Coherent Transceiver

  • Boitier F.
  • Chavarria Valenzuela L.
  • Dutisseuil E.
  • Lemaire V.
  • Pesic J.

we demonstrate on a real-time PDM-QPSK receiver coupled with trained learning machine that digital signal processing used in coherent technologies enable a concurrent monitoring of mechanical events occurring on optical fiber enabling proactive fiber break detection on deployed optical networks.