Results 41 to 50 of about 25,769 (204)

Coverage Analysis in the Uplink of mmWave Cellular Network [PDF]

open access: yes, 2017
In this paper, we present an analytical framework to evaluate the coverage in the uplink of millimeter wave (mmWave) cellular networks. By using a distance dependent line-of-sight (LOS) probability function, the location of LOS and non-LOS user equipment
Imran, Ali   +2 more
core   +1 more source

Nuts and Bolts of a Realistic Stochastic Geometric Analysis of mmWave HetNets: Hardware Impairments and Channel Aging [PDF]

open access: yes, 2019
© 2019 IEEE.Motivated by heterogeneous network (HetNet) design in improving coverage and by millimeter-wave (mmWave) transmission offering an abundance of extra spectrum, we present a general analytical framework shedding light on the downlink of ...
Chatzinotas, Symeon   +3 more
core   +5 more sources

Multi-Radio 5G Architecture for Connected and Autonomous Vehicles: Application and Design Insights [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2018
Connected and Autonomous Vehicles (CAVs) will play a crucial role in next-generation Cooperative Intelligent Transportation Systems (C-ITSs). Not only is the information exchange fundamental to improve road safety and efficiency, but it also paves the ...
Ioannis Mavromatis   +4 more
doaj   +1 more source

Smart-RF for mmWave MIMO Beamforming [PDF]

open access: yes2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2018
We study the performance of a prototype of a millimeter-wave transceiver with radio frequency (RF) beamforming capabilities. More specifically, the focus is on the architecture and software implementation of a smart-RF that allows self-beam-alignment. Simulation studies shows the expected performance in terms of probability of misalignment and coverage
Praneeth Susarla   +6 more
openaire   +2 more sources

Millimeter Wave Communications with Reconfigurable Antennas

open access: yes, 2018
The highly sparse nature of propagation channels and the restricted use of radio frequency (RF) chains at transceivers limit the performance of millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems. Introducing reconfigurable antennas to
He, Biao, Jafarkhani, Hamid
core   +1 more source

Caching-Aided Collaborative D2D Operation for Predictive Data Dissemination in Industrial IoT [PDF]

open access: yes, 2018
Industrial automation deployments constitute challenging environments where moving IoT machines may produce high-definition video and other heavy sensor data during surveying and inspection operations.
Andreev, Sergey   +6 more
core   +2 more sources

Multi-point Connectivity for Reliable mmWave [PDF]

open access: yes2019 27th European Signal Processing Conference (EUSIPCO), 2019
The fundamental challenge for mmWave communication is the sensitivity of mmWave signals to the blockage, which gives rise to unstable connectivity and impacts the reliability of a system. In this paper, we explore the viability of using coordinated multi-point connectivity, which facilitates multi-user precoding across spatially distributed ...
Tölli Antti-Heikki   +2 more
openaire   +2 more sources

Beam and Channel Tracking for 5G Communication Systems Using Adaptive Filtering Techniques: A Comparison Study

open access: yesJournal of Communications Software and Systems, 2022
In this paper, we study the problem of beam tracking of a multipath channel in millimeter-wave massive MIMO communication system using adaptive filters. We focus on the performance of least-mean-square filter (LMS) and recursive least-squares filter (RLS)
Mohanad Al-Ibadi, Farhad E. Mahmood
doaj   +1 more source

Resource Allocation for Device-to-Device Communications Underlaying Heterogeneous Cellular Networks Using Coalitional Games

open access: yes, 2018
Heterogeneous cellular networks (HCNs) with millimeter wave (mmWave) communications included are emerging as a promising candidate for the fifth generation mobile network.
Ai, Bo   +4 more
core   +1 more source

Channel Estimation for mmWave Massive MIMO Based Access and Backhaul in Ultra-Dense Network

open access: yes, 2016
Millimeter-wave (mmWave) massive MIMO used for access and backhaul in ultra-dense network (UDN) has been considered as the promising 5G technique. We consider such an heterogeneous network (HetNet) that ultra-dense small base stations (BSs) exploit ...
Dai, Linglong   +2 more
core   +1 more source

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