Promises and caveats of uplink IoT ultra-dense networks

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 ...

Edge computing meets millimeter-wave enabled VR: Paving the way to cutting the cord

In this paper, a novel proactive computing and mmWave communication for ultra-reliable and low latency wireless virtual reality (VR is proposed. By leveraging information about users' poses, proactive computing and caching are used to pre-compute and store users' HD video frames to minimize the computing latency. Furthermore, multi-connectivity is exploited ...

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 ...

Low complexity power control with decentralized fog computing for distributed massive MIMO

Fronthaul constrained Distributed Massive MIMO system (DM-MIMO) is a combination of Massive MIMO, and the architecture of Cloud Radio Access Network (C-RAN). It can simultaneously exploit the high spectral and energy efficiency provided by these two promising techniques of 5G, and boosts each other. We investigate the uplink of such ...

Transferring knowledge for tilt-dependent radio map prediction

Fifth generation wireless networks (5G) will face key challenges caused by diverse patterns of traffic demands and massive deployment of heterogeneous access points. In order to handle this complexity, machine learning techniques are expected to play a major role. However, due to the large space of parameters related to network ...

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 ...

5G new radio uplink performance: Noise, interference and emission constraints

This paper investigates the 5G new radio (NR) uplink (UL) performance with CP-OFDM and DFT-s-OFDM based waveforms. The effects of highly non-linear PA behavior, inter-allocation interference, and UL multi-user MIMO on the relative performance of these waveforms are addressed. It is shown that with relaxed EVM and inband emission requirements ...

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 sounding reference signal coordination to combat pilot contamination in 5G massive MIMO

To guarantee the success of massive multiple-input multiple-output (MIMO), one of the main challenges to solve is the efficient management of pilot contamination. Allocation of fully orthogonal pilot sequences across the network would provide a solution to the problem, but the associated overhead would make this approach infeasible in practical ...

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 ...

Hybrid retransmission scheme for QoS-defined 5G ultra-reliable low-latency communications

One of the key challenges in next generation 5G networks is to deliver Ultra-Reliable Low-Latency Communications (URLLC). Recent advances in information theory about principles that govern short packet transmissions pointed out that, for the URLLC typical short packet dimension, achieving higher reliabilities comes at the price of a lower maximum ...

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 ...

Application-agnostic remote access for Bluetooth Low Energy

  • Buob M.
  • Douville R.
  • Rozhnova N.

Today, the smart devices based on short-range wireless communication technologies such as Bluetooth or ZigBee build an important part of the Internet of Things (IoT). Such devices are not reachable outside of their Wireless Personal Area Network (WPAN). However, users' needs are sometimes incompatible with this limited reachability. Our goal ...

A Unified Clustering Approach for Identifying Functional Zones in Suburban and Urban Areas

  • Cao J.
  • He R.
  • Yang J.
  • Zhang Y.

It is well known that a modern city comprises multiple functional zones such as business, entertainment and shopping areas. It is also well established that identifying functional zones can effectively assist in understanding human mobility behavior and planning urban development. Less is known about suburban functional zones. In this paper ...

Line speed heavy hitters on sliding windows

Sliding window measurements are required by network functionalities such as load balancing, traffic engineering, and intrusion detection. Previous works suggested finding the most frequent flows, also known as heavy hitters but the suggested algorithms are too slow for modern lines. This work introduces a novel randomized algorithm named HHAWAII that ...

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

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 ...

Demo abstract — Design and implementation of an open source NB-IoT eNB

Narrowband Internet-of-things (NB-IoT) is a new standard developed by 3rd generation partnership project (3GPP) to provide IoT services in licensed spectrum. It adopts existing LTE-Advanced (LTE-A) orthogonal frequency-division multiple access (OFDMA) technology but each carrier only requires 180 kHz bandwidth. It allows an operator to replace a GSM carrier (200 ...

Backwards Composite Feedback for Configurable Ultra-Reliability of Retransmission Protocols

Future wireless networks envision ultra-reliable, ultra-low latency communication with efficient use of the limited wireless channel resources. Closed-loop retransmission protocols, such as automatic repeat request (ARQ), where retransmission of a packet is enabled using a feedback channel has been adopted since early days of wireless telecommunication to achieve the required ...

Real world home blood pressure variability in over 56,000 individuals with nearly 17 million measurements

  • Kim K.
  • Nikzad N.
  • Normand A.
  • Quer G.
  • Schmidt N.
  • Steinhubl S.
  • Topol E.
  • Vegreville M.
  • Wineinger N.

© American Journal of Hypertension, Ltd 2017. All rights reserved. BACKGROUND: Using the data from 56,365 individuals, from 185 countries, and a Nokia Health Wireless blood pressure (BP) monitor, we investigated real-world characteristics of BP variability (BPV). METHODS: All included individuals self-measured and uploaded their BP using Bluetooth at least ...

An Enhanced Selected Mapping Technique for Joint PAPR Reduction and Impulsive Noise Suppression in Multi-Carrier Powerline Communications Systems

  • Gacanin H.
  • O. Muta
  • T. Kageyama

In power line communication (PLC) systems using multi-carrier modulation such as orthogonal frequency division multiplexing (OFDM), reduction of peak-to-average power ratio (PAPR) of OFDM signal and mitigation of the influence of impulsive noise are challenging problems. To deal with these problems in PLC-OFDM systems, this paper proposes an enhanced selected ...