Multigroup Multicast Beamforming and Antenna Selection with Rate-Splitting in Multicell Systems
This paper studies energy-efficient joint coordinated beamforming and antenna selection in multi-cell multi-user multigroup multicast multiple-input single-output systems. We focus on interference-limited […]
Bayesian Learning Based Millimeter-Wave Sparse Channel Estimation with Hybrid Antenna Array
We consider the problem of millimeter-wave (mmWave) channel estimation with a hybrid digital-analog two-stage beamforming structure. A radio frequency (RF) chain excites […]
Interference Management via User Clustering in Two-Stage Precoder Design
We consider a single cell downlink (DL) massive multiple-input multiple-output (MIMO) set-up with user clustering based on statistical information. The problem is […]
Maskless direct growth of carbon nanotube micropatterns on metallic substrates
Herein, we report on a simple process, which is suitable for producing carbon nanotube micropatterns on steel alloys without the use of […]
On Track of Sigfox Confidentiality with End-to-End Encryption
The last years brought many novel challenges for the Internet of Things (IoT). Low capital and operational expenditures, massive deployments of devices, […]
Rate Maximization for Partially Connected Hybrid Beamforming in Single-User MIMO Systems
Partially connected hybrid beamforming (HBF) is a promising approach to alleviate the implementation of large scale millimeter-wave multiple-input multiple-output (MIMO) systems. In […]
Vertical Use Cases in the Finnish 5G Test Network
The Finnish 5G test network (5GTN) supports development of new network technologies, and services and applications on top of these. It is […]
On Trade-off between 5G Positioning and mmWave Communication in a Multi-user Scenario
Millimeter-wave communication is considered one of the key enablers for 5G systems as it contributes to achieving high data rate with very […]
A Tutorial on Lossy Forwarding Cooperative Relaying
Lossy decode-and-forward (DF) relaying, also referred to as lossy forwarding (LF), can significantly enhance the transmission reliability and expand the communication coverage […]
Performance of Neighboring Indoor 5G Micro Operators with Dynamic TDD
Local small cell deployments complementing the coverage of the existing outdoor networks are vital for the future 5G networks. To make the […]