Service-tailored User-Plane Design Framework and Architecture Considerations in 5G Radio Access Networks

This paper presents a novel user plane framework, tailored for different 5G services with diverse and conflicting key performance requirements (KPIs). Subsequently, the paper discusses how various user plane design decisions related to the functional split options, multi-connectivity aspects, control / user plane split options and network slicing can potentially ...

Chirp Management in Silicon-Graphene Electro Absorption Modulators

  • Asselbergs I.
  • Contestabile G.
  • D'Errico A.
  • Galli P.
  • Huyghebaerts C.
  • Midrio M.
  • Pantouvaki M.
  • Romagnoli M.
  • Sorianello V.
  • Van Campenhout J.

We study the frequency chirp properties of Graphene-on- Silicon electro-absorption modulators (EAMs). By experimentally measuring the chirp of a 100 um long single layer Graphene EAM, we show that the optoelectronic properties of Graphene induce a large positive linear chirp (up to 1.8 GHz) on the optical signal generated by ...

5G US Spectrum Development , Products and mmWave Testing Including Measurements of Fixed Satellite Service (FSS) Earth Station Spillover Emissions.

  • Majkowski W.

The 5G shared spectrum for mobile wireless above 24 GHz was authorized by the FCC. This paper traces the development of the shared spectrum authorization, testing issues, 5G goals and interference measurements of Fixed Satellite Service (FSS) Earth Station Spillover Emissions.

Wireless MIMO Base Station Near and Far Field Measurement Challenges

  • Moongilan D.

Wireless communication systems use Multiple Input Multiple Output-antenna techniques to increase coverage, data throughput and spectral efficiency. Often beam forming techniques are used to provide additional antenna gain relative to Single Input Single Output systems. Regulatory compliance radiated emissions tests for wireless devices are performed using a single measurement antenna ...

The era of 5G and its impacts on EMC design and testing

  • Yu Q.

Agenda â?¢ 5G Era â?" Coming â?¢ What is 5G? â?¢ What are 5G Capabilities? â?¢ What are 5G Performance Requirements?

Security Trust Zone in 5G networks

  • Bin Han
  • Dohler M.
  • Mannweiler C.
  • Schotten H.
  • Stan Wong

Fifth Generation (5G) telecommunication system is going to deliver a flexible radio access network (RAN). Security functions such as authorization, authentication and accounting (AAA) are expected to be distributed from central clouds to edge clouds. We propose a novel architectural security solution that applies to 5G networks. It is called ...

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
  • Wang H.
  • Wu Q.

Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

Localised Dynamics of Laminar Pulsatile Flow in a Rectangular Channel

  • Blythman R.
  • Jeffers N.
  • Murray D.
  • Persoons T.

The exploitation of flow pulsation in low-Reynolds number micro/minichannel flows is a potentially useful technique for enhancing cooling of high power photonics and electronics devices. Although the corresponding mechanical and thermal problems are inextricably linked, decoupling of the local instantaneous parameters provides insight into underlying mechanisms. Using two-dimensional, two-component particle ...

Virtualized environments, from connectivity to services

  • Barnaghi P.
  • Bertin E.
  • Hofmann M.

NFV: Security Threats and Best Practices

  • Dutta A.
  • Lal S.
  • Taleb T.

Network function virtualization (NFV) yields numerous benefits, particularly the possibility of a cost-efficient transition of telco hardware functionalities on the software platform to break the vendor lock-in problem. These benefits come at the price of some security flaws. Indeed, with NFV, virtual mobile networks become vulnerable to a number of ...

5G Network Slicing - Part 2: Algorithms and Practice

  • Banchs A.
  • Capone A.
  • Obana K.
  • Samdanis K.
  • Ulema M.
  • Wright S.

Effective Design of Multi-User Reception and Fronthaul Rate Allocation in 5G Cloud RAN

  • Boviz D.
  • Chen C.
  • Yang S.

Cloud Radio Access Network (C-RAN) is becoming more than ever timely in 5G for dense network deployments, but its design has to be adapted to 5G requirements. To ensure high uplink throughput in cell-edge regions affected by inter-cell interference, C-RAN enables multi-user reception techniques among cells. In this paper, we ...

TinySet-An Access Efficient Self Adjusting Bloom Filter Construction

  • Einziger G.
  • Friedman R.

Bloom filters are a very popular and efficient data structure for approximate set membership queries. However, Bloom filters have several key limitations as they require 44% more space than the lower bound, their operations access multiple memory words, and they do not support removals. This paper presents TinySet, an alternative ...

Radio Channel Modeling for UAV Communication Over Cellular Networks

  • Amorim R.
  • Kovacs I.
  • Mogensen P.
  • Nguyen H.
  • Sorensen T.
  • Wigard J.

The main goal of this letter is to obtain models for path loss exponents and shadowing for the radio channel between airborne unmanned aerial vehicles (UAVs) and cellular networks. In this pursuit, field measurements were conducted in live LTE networks at the 800 MHz frequency band, using a commercial UAV. ...

Outdoor-to-Indoor Empirical Path loss Models: Analysis for Pico and Femto Cells in Street Canyons

  • Castro G.
  • Chizhik D.
  • Feick R.
  • Rodriguez M.
  • Valenzuela R.

The applicability of COST231, WINNER+, ITU-R, and 3GPP urban microcell outdoor-to-indoor path loss prediction models is empirically tested in 100 m radius urban femtocells. The analysis is based on more than 500 link measurements. Considerations not specified in the models such as the inclusion of antenna gains and the effect ...

Queryable Kafka: An agile data analytic pipeline for mobile wireless networks

Owing to their promise of delivering real-time decisions, today's streaming analytics platforms are increasingly being used in the communications networks, where the impact of the decisions go beyond sentiment and trend analysis to include real-time detection of security attacks and prediction of network state (i.e., is the network transitioning towards ...

Nonlinear Frequency Division Multiplexed Transmissions with 64QAM

  • Buelow H.
  • Thai Le S.

Record data rate of 50 Gb/s in nonlinear frequency division multiplexing (NFDM) transmission is experimentally demonstrated using 64 overlapping orthogonal 0.5 Gbaud channels with 64 QAM format, showing an improvement of 1 dB over conventional system at 976 km

Traffic management in SDN-enabled optical packet switching intra-datacenter network

  • Dallaglio M.
  • Dupas A.
  • Dutisseuil E.
  • Mardoyan H.
  • Pointurier Y.
  • Tolosa J.
  • Uscumlic B.
  • Van Q.

Slotted optical packet switching (OPS) is foreseen as future technology for intra datacenter network that will have to provide dynamic reconfiguration capacity, scalability, low latency and QoS guarantees to support fast growing emerging services. In this paper, we describe a prototype based on this technology and reconfigurable thanks to implementation ...

56-Gbps 4-PAM system over nearly 40 km transmission by employing an O-band EML and SOA

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

This work demonstrates a 56-Gbps 4-PAM EML-based transmission system. Using an O-band SOA to increase power budget and FFE/DFE to compensate SOA-induced ISI, 37.8-km transmission is successfully implemented with BER below the FEC limit (2 × 10â?'4)

67.6% Improvement in data rate employing partial transmit sequence for PAPR reduction and volterra filtering in an OFDM long-reach PON

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

We applied partial transmit sequence and Volterra filtering to achieve 67.6% improvement in capacity in a high-launch-power 60-km OFDM LR-PON. 61-Gbps capacity and 30-dB loss budget were realized to support 64 ONUs with 0.95 Gbps/ONU.