Distributed Transmission and Spatially-Coupled Coding in Multi-Point to Point Networks

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

We investigate the performance of coded modulation for multi-hop regenerative optical networks. We analyze various simplifications to compute LLRs, compute the achievable rates and show how to optimize distributed spatially coupled FEC schemes.

An improved method for on-demand system information broadcast in 5G networks

  • Ali A.
  • Awada A.
  • Michalopoulos D.

We argue for a new method that applies to on-demand system information (SI) broadcast transmissions. The proposed method is targeted for 5G networks, and is based upon utilizing a cut-off value for the modulation and coding scheme used for broadcasting. Two variants of the proposed scheme are presented, namely the ...

Data plane protocols and fragmentation for 5G

  • Kantola R.
  • Tilli J.

Mobile networks up to this point have used general packet radio service (GPRS) tunneling protocol (GTP) in the core network. The fifth generation (5G) will be a major revolution in mobile networks and there have been discussions onto adopting a different protocol, with the proposals being generic routing encapsulation (GRE), ...

Impact of cyclic prefix configuration on mobility performance of multi-connectivity in 5G networks

  • Awada A.
  • Fettweis G.
  • Simsek M.
  • Tesema F.
  • Viering I.

Service interruptions from mobility events, such as handovers and connection failures, are some of the major impairments for fulfilling the ultra-reliability requirements in fifth Generation (5G) mobile networks. One of the solutions to tackle the aforementioned challenges is multi-connectivity with Single Frequency Network (SFN) transmission, which refers to noncoherent joint ...

Energy efficiency of 5G mobile networks with base station sleep modes

  • Hronec M.
  • Jolma P.
  • Lahdekorpi P.
  • Moilanen J.

The paper presents system level simulation results on future base station energy saving using a time-triggered sleep model. The energy efficiency of future base station is compared in macro cellular network against a comparable baseline without usage of sleep modes. Furthermore, results for corresponding 4G case are shown using a ...

Machine learning using neural networks in digital signal processing for RF transceivers

  • Fischer G.
  • Jueschke P.

Communication is changing to a wireless world. Any wireless communication system needs radio frontends (transceivers) to link higher layer signals to the air interface. The increasing standard and technology diversity require transceivers with high flexibility supporting many of frequencies, standards and signal requirements. Design to cost, the demand for highest ...

NoSQL stores for coreless mobile networks

  • Flinck H.
  • Ojala F.
  • Rao A.
  • Tarkoma S.

The goals of 5G networks â?" low latency, high bandwidth, and support for fast mobility â?" are non-trivial and they demand improvements across all involved technology fields. Researchers are therefore exploring approaches that leverage on network function virtualization and software-defined networking for meeting the demands of verticals expected to use ...

An agile resource management framework for 5G

  • Arnold P.
  • Belschner J.
  • Bronzino F.
  • Bulakci Ö.
  • Calochira G.
  • Celik H.
  • Ericson M.
  • Fodor G.
  • Gutierrez-Estevez D.
  • Ibrahim A.
  • Moya F.
  • Pateromichelakis E.
  • Prasad A.

This paper presents the design foundations of an agile resource management (RM) framework for the fifth generation (5G) radio access network (RAN) by describing essential building blocks (BBs). Overall, the presented RM framework provides holistic RM solutions that consider and exploit the novel aspects of 5G systems, such as, diverse ...

QoS and service continuity in 3GPP D2D for IoT and wearables

  • Kozio D.
  • Moya F.
  • Van Phan V.
  • Xu S.
  • Yu L.

Device-to-Device (D2D) communications have been already playing a relevant role in 3GPP for several releases of the LTE standard. This paper first shortly introduces how D2D was brought into 3GPP standards and how it evolved, starting from direct discovery and communication between devices being specified in Release 12, through UE-to-Network ...

Securing VNF communication in NFVI

  • Ahola K.
  • Kalliola A.
  • Lal S.
  • Oliver I.
  • Taleb T.

In a modern telco cloud, network functions are performed by groups of single or interconnected virtual machines (VMs), which form virtualized network functions (VNFs). Securing these VNFs is both important and challenging, since the VNFs might be performing some mission critical operations and exchanging sensitive information among each other. The ...

Holistic resource management and air interface abstraction models

  • Bulakci Ö.
  • Ericson M.
  • Fodor G.
  • Gutierrez-Estevez D.
  • Karimi P.
  • Moya F.
  • Prasad A.

Resource Management (RM) in fifth generation (5G) radio access network has been the subject of extensive study in recent years. An agile RM framework should encompass greatly-improved services from previous mobile network generations along with advanced new services meeting the challenging requirements, like massive data rate and ultra-low latency. The ...

End-to-end network slicing enabled through network function virtualization

  • Afolabi I.
  • Bagaa M.
  • Flinck H.
  • Taleb T.

Wireless networks have gone through several years of evolution until now and will continue to do so in order to cater for the varying needs of users. These demands are expected to grow in the future, both in size and variability. Hence, the 5G technology considers these variabilities in service ...

Enhancements of narrowband IoT in 3GPP Rel-14 and Rel-15

  • Bhatoolaul D.
  • Mangalvedhe N.
  • Ratasuk R.
  • Robert M.
  • Xiong Z.

In 3GPP Rel-13, a narrowband system, named Narrowband Internet of Things (NB-IoT), has been introduced to provide low-cost, low-power, wide-area cellular connectivity for the Internet of Things. Further enhancements have been made to this system in subsequent 3GPP releases. In this paper, we describe Rel-14 enhancements that have been standardized ...

RAN enablers for 5G radio resource management

  • Arnold P.
  • Belschner J.
  • Bulakci Ö.
  • Calochira G.
  • Ericson M.
  • Gutierrez-Estevez D.
  • Pateromichelakis E.
  • Prasad A.

This paper presents the description of several key RAN enablers for the radio resource management (RRM) framework of the fifth generation (5G) radio access network (RAN), referred to as building blocks of the 5G RRM. In particular, the following key RAN enablers are discussed: i) interference management techniques for dense ...

An overview of standardization efforts for enabling vehicular-to-everything services

  • Husain S.
  • Kunz A.
  • Prasad A.
  • Samdanis K.
  • Song J.

The Third Generation Partnership Project (3GPP) has been working on developing specifications on Machine to Machine Communications (M2M) and on the emerging Internet of Things (IoT) bringing light into the associated service and network requirements. This paper presents a special form of M2M/IoT communication, where at least one communication device ...

TWDM PON Preamble Engineering for Mitigation of a DFB Turn-On Blue-Shift in Burst-Mode Operation

We demonstrate two new schemes for DFB optical frequency drift reduction up to 13-GHz, which address issues of previously described methods. Density increase scheme requires only modification of digital data in the preamble and is therefore well-suited for product implementation.

Compressive Sensing via Convolutional Factor Analysis

  • Jiang H.
  • Wilford P.
  • Yuan X.

We solve the compressive sensing problem via the convolutional dictionary learning. We develop an alternating direction method of multipliers (ADMM) paradigm for compressive inversion. The proposed algorithm can provide the reconstructed images as well as the features, which can be directly used for classification or clustering tasks. A joint compressive ...

Could the Transformation to Cloud-Optimized Networking be Opening a New Era for Dynamic Optical Networking?

  • Sparks K.

Poised to elevate the automated digital economy, new high performance global-scale applications will leverage distributed clouds, network programmability and multi-operator federation. Effective realizations require cohesive multi-layer management of agile reusable resources, driving the necessity for a dynamic optical networking foundation.

Components For Space-Division Multiplexing

  • Fontaine N.

Amplifiers, spatial multiplexers, and routing elements that exploit spatial integration will reduce costs and complexity of future space-division multiplexed transmission systems. Managing spatial modes requires new components such as mode multiplexers, mixers, equalizers, and unscramblers.

A machine learning-based framework for preventing video freezes in HTTP adaptive streaming

  • Bostoen T.
  • De Turck F.
  • Huysegems R.
  • Petrangeli S.
  • Wauters T.
  • Wu T.

HTTP Adaptive Streaming (HAS) represents the dominant technology to deliver videos over the Internet, due to its ability to adapt the video quality to the available bandwidth. Despite that, HAS clients can still suffer from freezes in the video playout, the main factor influencing users' Quality of Experience (QoE). To ...