Zobrazeno 1 - 10
of 1 052
pro vyhledávání: '"Tolli, A."'
Autor:
Nguyen, Toan-Van, Nassirpour, Sajjad, Atzeni, Italo, Tolli, Antti, Swindlehurst, A. Lee, Nguyen, Duy H. N.
The spatial Sigma-Delta ($\Sigma\Delta$) architecture can be leveraged to reduce the quantization noise and enhance the effective resolution of few-bit analog-to-digital converters (ADCs) at certain spatial frequencies of interest. Utilizing the vari
Externí odkaz:
http://arxiv.org/abs/2410.03891
Let $K\leq H$ be two finite groups and let $C\leq A$ be two finite abelian groups, with $H$ acting on $A$ as a group of isomorphisms admitting $C$ as a $K$-invariant subgroup. We study the homogeneous space $X\coloneqq\left(H\ltimes A\right)/\left(K\
Externí odkaz:
http://arxiv.org/abs/2405.08371
We present a new analytical framework on the uplink data detection for massive multiple-input multiple-output systems with 1-bit analog-to-digital converters (ADCs). We first characterize the expected values of the soft-estimated symbols (after the l
Externí odkaz:
http://arxiv.org/abs/2312.04183
Autor:
Nguyen, Nhan Thanh, Nguyen, Van-Dinh, Van Nguyen, Hieu, Wu, Qingqing, Tolli, Antti, Chatzinotas, Symeon, Juntti, Markku
We consider unmanned aerial vehicle (UAV)-enabled wireless systems where downlink communications between a multi-antenna UAV and multiple users are assisted by a hybrid active-passive reconfigurable intelligent surface (RIS). We aim at a fairness des
Externí odkaz:
http://arxiv.org/abs/2306.14008
A location-aware multi-antenna coded caching scheme is proposed for applications with location-dependent data requests, such as wireless immersive experience, where users are immersed in a three-dimensional virtual world. The wireless connectivity co
Externí odkaz:
http://arxiv.org/abs/2305.06858
The global caching gain of multi-antenna coded caching techniques can be also mostly achieved in dynamic network setups, where the cache contents of users are dictated by a central server, and each user can freely join or leave the network at any mom
Externí odkaz:
http://arxiv.org/abs/2203.12295
Autor:
Nguyen, Nhan Thanh, Nguyen, Van-Dinh, Wu, Qingqing, Tolli, Antti, Chatzinotas, Symeon, Juntti, Markku
We consider a multi-user multiple-input single-output (MISO) communications system which is assisted by a hybrid active-passive reconfigurable intelligent surface (RIS). Unlike conventional passive RISs, hybrid RIS is equipped with a few active eleme
Externí odkaz:
http://arxiv.org/abs/2203.07042
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:
http://arxiv.org/abs/2202.06814
Multi-antenna coded caching combines a global caching gain, proportional to the total cache size in the network, with an additional spatial multiplexing gain that stems from multiple transmitting antennas. However, classic centralized coded caching s
Externí odkaz:
http://arxiv.org/abs/2111.07626
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