Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Antti Tolli"'
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 4, Pp 1371-1382 (2023)
The next evolutionary step in human-computer interfaces will bring forward immersive digital experiences that submerge users in a 3D world while allowing them to interact with virtual or twin objects. Accordingly, various collaborative extended reali
Externí odkaz:
https://doaj.org/article/f09bfe9f747c434180638d674a63d70e
Publikováno v:
IEEE Access, Vol 11, Pp 16271-16287 (2023)
A device-to-device (D2D) aided multi-antenna coded caching scheme is proposed to improve the average delivery rate and reduce the downlink (DL) beamforming complexity. Novel beamforming and resource allocation schemes are proposed where local data ex
Externí odkaz:
https://doaj.org/article/b804e800dac648278a6e46b4760f0c7e
Publikováno v:
IEEE Access, Vol 11, Pp 11749-11765 (2023)
In this paper, we investigate a transmitter and receiver design for a single-user massive SIMO (single-input multiple-output) system with 1-bit analog-to-digital converters (ADCs) at the base station (BS), where the user adopts higher-order modulatio
Externí odkaz:
https://doaj.org/article/165c3e5f4b69473cbf64ace1a8acd874
Publikováno v:
IEEE Access, Vol 10, Pp 47906-47920 (2022)
In this paper we revisit the long-standing problem of peak-to-average power ratio minimization in MIMO-OFDM systems, with a new angle of approach on a well-known scheme. Utilizing the principles of tone reservation, we place dummy symbols, i.e., comp
Externí odkaz:
https://doaj.org/article/db07a8a50e514f1bb51df93938886223
Publikováno v:
IEEE Access, Vol 10, Pp 32822-32835 (2022)
The sensitivity of the millimeter-wave (mmWave) radio channel to blockages is a fundamental challenge in achieving low-latency and highly-reliable connectivity. In this paper, we explore the viability of using Coordinated Multi-Point (CoMP) transmiss
Externí odkaz:
https://doaj.org/article/e5fcf7152df2435d8b46c2d7d11232eb
Publikováno v:
IEEE Access, Vol 8, Pp 205534-205549 (2020)
Integrated access and backhaul (IAB) network consists of base station (BS), relay nodes (RNs), and user-equipments (UEs), where BS and RNs exchange UE data via wireless in-band backhaul while sharing the same frequency-time resources with access link
Externí odkaz:
https://doaj.org/article/3bd1e1918bd64ff299791e3569e3e571
Autor:
Praneeth, Susarla, Bikshapathi, Gouda, Yansha, Deng, Markku, Juntti, Olli, Silven, Antti, Tolli
Unmanned aerial vehicles (UAVs) are the emerging vital components of millimeter wave (mmWave) wireless systems. Accurate beam alignment is essential for efficient beam-based mmWave communications of UAVs with base stations (BSs). Conventional beam sw
Externí odkaz:
http://arxiv.org/abs/2110.06318
Autor:
Emanuele Parrinello, Seyed Pooya Shariatpanahi, Mohammad Javad Salehi, Petros Elia, Antti Tolli
Publikováno v:
IEEE Transactions on Wireless Communications
Multi-antenna coded caching is known to combine a global caching gain that is proportional to the cumulative cache size found across the network, with an additional spatial multiplexing gain that stems from using multiple transmitting antennas. Howev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffa990d50beb6cc99187ae5ca14bfd03
https://doi.org/10.1109/twc.2021.3119772
https://doi.org/10.1109/twc.2021.3119772
Publikováno v:
GLOBECOM 2022 - 2022 IEEE Global Communications Conference.
We consider a novel hybrid active-passive reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicle (UAV) air-ground communications system. Unlike the conventional passive RIS, the hybrid RIS is equipped with a few active elements to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f9be000a1a4514819815444f876bbd2
https://doi.org/10.1109/globecom48099.2022.10001719
https://doi.org/10.1109/globecom48099.2022.10001719
We consider multi-group multicast precoding designs for cell-free massive multiple-input multiple-output (MIMO) systems. To optimize the transmit and receive beamforming strategies, we focus on minimizing the sum of the maximum mean squared errors (M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc3a3311dda985c34e7f7d052d66c32a
http://arxiv.org/abs/2211.05522
http://arxiv.org/abs/2211.05522