H
Hirley Alves
Researcher at University of Oulu
Publications - 232
Citations - 3054
Hirley Alves is an academic researcher from University of Oulu. The author has contributed to research in topics: Fading & Throughput. The author has an hindex of 23, co-authored 208 publications receiving 2107 citations. Previous affiliations of Hirley Alves include Federal University of São Carlos & Federal University of Technology - Paraná.
Papers
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Journal ArticleDOI
Performance of Transmit Antenna Selection Physical Layer Security Schemes
TL;DR: It is shown that the PHY security can be considerably enhanced when multiple antennas are available at the legitimate transmitter, and a single RF chain multiple antenna transmitter reduces cost, complexity, size and power consumption at the expense of a slight loss in performance with respect to a multiple RF chain transmitter.
Proceedings ArticleDOI
Six Key Features of Machine Type Communication in 6G
Nurul Huda Mahmood,Hirley Alves,Onel L. Alcaraz López,Mohammad Shehab,Diana Pamela Moya Osorio,Matti Latva-aho +5 more
TL;DR: An over-arching vision for machine type communication in 6G networks is presented and some relevant performance indicators are first discussed, followed by a presentation of key enablers.
Posted Content
White paper on critical and massive machine type communication towards 6G
Nurul Huda Mahmood,Stefan Bocker,Andrea Munari,Federico Clazzer,Ingrid Moerman,Konstantin Mikhaylov,Onel L. Alcaraz López,Ok-Sun Park,Eric Mercier,Hannes Bartz,Riku Jantti,Ravikumar V. Pragada,Y. Ma,Elina Annanperä,Christian Wietfeld,Martin Andraud,Gianluigi Liva,Y. Chen,Eduardo Garro,Frank Burkhardt,Hirley Alves,Chen-Feng Liu,Yalcin Sadi,Jean-Baptiste Dore,Eunah Kim,Jaesheung Shin,Gi Yoon Park,S.-K. Kim,Chanho Yoon,Khoirul Anwar,Pertti Seppänen +30 more
TL;DR: The main drivers and requirements of an MTC-optimized 6G network are explored, and the following six key research questions are discussed: will the main KPIs of 5G continue to be the dominant KPIs in 6G; or will there emerge new key metrics?
Journal ArticleDOI
Analysis and Performance Optimization of LoRa Networks With Time and Antenna Diversity
Arliones Hoeller,Richard Demo Souza,Onel L. Alcaraz López,Hirley Alves,Mario de Noronha Neto,Glauber Brante +5 more
TL;DR: Results show that LoRa networks are highly sensitive to the increase in user and traffic density, but both message replication and multiple antennas can enhance performance.
Journal ArticleDOI
Ultrareliable Short-Packet Communications With Wireless Energy Transfer
TL;DR: The numerical results demonstrate that there are optimum numbers of channels uses for both energy and information transfer for a given message length.