Positioning of high-speed trains using 5G new radio synchronization signals

We study positioning of high-speed trains in 5G new radio (NR) networks by utilizing specific NR synchronization signals. The studies are based on simulations with 3GPP-specified radio channel models including path loss, shadowing and fast fading effects. The considered positioning approach exploits measurement of Time-Of-Arrival (TOA) and Angle-Of-Departure (AOD), which ...

Average downlink SINR model for 5G mmWave networks with analog beamforming

Millimeter-wave frequency bands enable the deployment of small-sized antenna arrays in the fifth generation of mobile networks, which provide high beamforming gain for both transmitter and receiver. In order to study user mobility, a computationally efficient simulator is needed that runs with a time step resolution that is higher than ...

Performance analysis of uplink massive MIMO networks with a finite user density

In this paper, we conduct performance analysis for uplink (UL) massive multiple input and multiple output (mMI-MO) networks using stochastic geometry. With the consideration of practical system assumptions, such as sophisticated path loss model incorporating both line-of-sight (LoS) and non-line-of-sight (NLoS) transmissions and a finite user equipment (UE) density, we ...

Promises and caveats of uplink IoT ultra-dense networks

  • Ding M.
  • Perez D.

In this paper, by means of simulations, we evaluate the uplink (UL) performance of an Internet of Things (IoT) capable ultra-dense network (UDN) in terms of the coverage probability and the density of reliably working user equipments (UEs). From our study, we show the benefits and challenges that UL IoT ...

LTE radio measurements above urban rooftops for aerial communications

This paper focus on the investigation of aerial communications for drones connected to cellular networks in urban areas. Most of the previous measurement based channel models for urban environments do not extend to users located at heights above rooftops. On the other hand, UAVs are expected to fly at the ...

Indoor massive MIMO deployments for uniformly high wireless capacity

Providing consistently high wireless capacity is becoming increasingly important to support the applications required by future digital enterprises. In this paper, we propose Eigen-direction-aware ZF (EDA-ZF) with partial coordination among base stations (BSs) and distributed interference suppression as a practical approach to achieve this objective. We compare our solution with ...

Performance benchmark of transcoding as a virtual network function in CDN as a service slicing

Content delivery networks (CDNs) have been widely implemented to provide scalable cloud services. Such networks support resource pooling by allowing virtual machines to be dynamically running or stopping according to current users' demands. Recently, there has been an increasing interest in Network Function Virtualization (NFV) as an emerging technology that ...

Uplink performance analysis of a drone cell in a random field of ground interferers

Aerial base stations are a promising technology to increase the capabilities of existing communication networks. However, existing analytical frameworks do not sufficiently characterize the impact of ground interferers on aerial base stations. In order to address this issue, we model the effect of interference coming from coexisting ground networks on ...

Bankruptcy game based resource allocation algorithm for 5G Cloud-RAN slicing

Recently, network slicing which addresses the deployment of multiple logical networks as independent business operations on a common physical infrastructure has attracted more and more attentions. Despite the advances of network slicing, there are still many open issues regarding the isolation of the wireless slices and resources allocation. The paper ...

LEAP: A latency control protocol for multi-path data delivery with pre-defined QoS guarantees

  • Chiariotti F.
  • Claussen H.
  • Kucera S.
  • Zanella A.

Wireless Gigabit networks based on the 5G New Radio and WiGig standards are expected to enable new throughput-intensive applications such as Virtual/Augmented Reality, high-resolution video chats, and remote control of unmanned terrestrial and aerial vehicles. However, the interactive nature of such applications implies the need for reliable and timely delivery ...

QoE Driven SON for Mobile Backhaul Demo

  • Bajzik L.
  • Deák C.
  • Karasz T.
  • Szilagyi P.
  • Vincze Z.
  • Vulkán C.

T?he complexity of the Mobile Backhaul (MBH) and the unpredictability of the mobile traffic represents a network operation challenge. Increasing the automation of the transport service management by introducing the Self Organizing Networks (SON) concept to MBH can significantly simplify the network configuration process, reduce the cost of operation and ...

Optimizing Operational Costs of NFV Service Chaining

  • Caggiani Luizelli M.
  • Raz D.
  • Saar Y.

Network Function Virtualization (NFV) is a novel paradigm that enables flexible and scalable implementation of network services on cloud infrastructure. One of the key factors in the success of NFV is the ability to dynamically allocate physical resources according to the actual demand. Yet, orchestrating service chains that require high ...

Challenges for Enabling Virtual Reality Broadcast Using 5G Small Cell Network

  • Navratil D.
  • Prasad A.
  • Saily M.
  • Uusitalo M.

In the recent past, with the ubiquitous adoption of smartphones and tablets, there has been an exponential increase in data rate demands which has increasingly challenging for network operators to support. This trend is expected to continue in future, with the advent of high-performance gaming and increasing appetite for immersive ...

Advancements of QoE assessment and optimization in mobile networks in the machine era

Although QoE evaluation methodologies for human communication services in mobile networks â€" such as voice and video streaming â€" are a widely researched topic, several challenges remain yet unresolved including industry-agreed definitions of end-to-end performance indicators. With 5G, a wide variety of new use cases and diverse services shall be ...

Power Control for Coordinated NOMA Downlink with Cell-Edge Users

  • Chen C.
  • Chi Wan Sung
  • Qianyun Guo
  • Yi Chen

Non-orthogonal multiple access (NOMA) is an effective means to improve the spectral efficiency of a wireless communication system. When applied to cellular networks, cell edge users may suffer from low bit rate, or the associated base stations may need to use excessively high power to serve those users. In order ...

Indoor Localization By Detecting 80 Key Bits With Downlink Interleave Division Multiple Access

  • Chen Y.

In this paper, a wireless cellular network based indoor localization approach is presented. During the training stage, the mobile device initializes a positioning request. The surrounding Base Stations (BSs), which are typically equipped with massive antenna array elements, can measure the Angle of Arrival (AoA) of the positioning request signal. ...

Creating value through blockchain powered resource configurations: Analysis of 5G network slice brokering case

The exponential growth of wireless services with diversity of devices and applications has inspired the research community to come up with novel concepts to improve the efficiency of resource use. It is cost efficient and practical to be able to evaluate and analyze expected value of use cases before actual ...

SON function performance prediction in a cognitive SON management system

As a reply to the increasing demand for fast mobile network connections the concept of Self-Organising Networks (SONs) has been developed, reducing the need for humans to execute Operation, Administration and Maintenance (OAM) tasks for mobile networks. However, a SON contains functions which are provided by different vendors as black ...

Multiplexing of latency-critical communication and mobile broadband on a shared channel

This paper presents solutions for efficient multiplexing of ultra-reliable low-latency communications (URLLC) and enhanced mobile broadband (eMBB) traffic on a shared downlink channel. Such a scenario presents multiple challenges in the context of radio resource scheduling, link adaptation and inter-cell interference, which are identified and addressed throughout the paper. Specifically, ...

Providing strong 5G mobile network slice isolation for highly sensitive third-party services

Future 5G mobile networks are expected to support network slicing, i.e. multiple virtual networks running on a common infrastructure. A virtual network, called network slice, may be created to support a specific communication service type, such as massive machine-type communication, or even a specific application, for example one single Internet ...