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pro vyhledávání: '"Senior, John M."'
In this paper, we focus on the coverage probability of a double-intelligent reflecting surface (IRS) assisted wireless network and study the impact of multiplicative beamforming gain and correlated Rayleigh fading. In particular, we obtain a novel cl
Externí odkaz:
http://arxiv.org/abs/2110.08317
Autor:
Papazafeiropoulos, Anastasios, Björnson, Emil, Kourtessis, Pandelis, Chatzinotas, Symeon, Senior, John M.
Standard cell-free (CF) multiple-input-multiple-output (mMIMO) systems is a promising technology to cover the demands for higher data rates in fifth-generation (5G) networks and beyond. These systems assume a large number of distributed access points
Externí odkaz:
http://arxiv.org/abs/2108.12642
Autor:
Papazafeiropoulos, Anastasios, Pan, Cunhua, Elbir, Ahmet, Kourtessis, Pandelis, Chatzinotas, Symeon, Senior, John M.
This paper suggests the use of multiple distributed intelligent reflecting surfaces (IRSs) towards a smarter control of the propagation environment. Notably, we also take into account the inevitable correlated Rayleigh fading in IRS-assisted systems.
Externí odkaz:
http://arxiv.org/abs/2102.09416
We consider a two-way half-duplex decode-and-forward (DF) relaying system with multiple pairs of single-antenna users assisted by a cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture with multiple-antenna access points (APs).
Externí odkaz:
http://arxiv.org/abs/2102.07144
Autor:
Papazafeiropoulos, Anastasios, Pan, Cunhua, Kourtessis, Pandelis, Chatzinotas, Symeon, Senior, John M.
Most works in IRS-assisted systems have ignored the impact of the inevitable residual hardware impairments (HWIs) at both the transceiver hardware and the IRS while any relevant works have addressed only simple scenarios, e.g., with single-antenna ne
Externí odkaz:
http://arxiv.org/abs/2102.05333
Autor:
Papazafeiropoulos, Anastasios, Kourtessis, Pandelis, Di Renzo, Marco, Chatzinotas, Symeon, Senior, John M.
Cell-free (CF) massive multiple-input-multiple-output (MIMO) has emerged as an alternative deployment for conventional cellular massive MIMO networks. Prior works relied on the strong assumption (quite idealized) that the APs are uniformly distribute
Externí odkaz:
http://arxiv.org/abs/2010.13223
Autor:
Papazafeiropoulos, Anastasios, Ngo, Hien Q., Kourtessis, Pandelis, Chatzinotas, Symeon, Senior, John M.
Motivated by the ever-growing demand for \emph{green} wireless communications and the advantages of \emph{cell-free} (CF) massive multiple-input multiple-output (MIMO) systems, we focus on the design of their downlink for optimal \emph{energy efficie
Externí odkaz:
http://arxiv.org/abs/2005.07459
Autor:
Papazafeiropoulos, Anastasios, Kourtessis, Pandelis, Di Renzo, Marco, Senior, John M., Chatzinotas, Symeon
Small-cell densification is a strategy enabling the offloading of users from macro base stations (MBSs), in order to alleviate their load and increase the coverage, especially, for cell-edge users. In parallel, as the network increases in density, th
Externí odkaz:
http://arxiv.org/abs/1901.04280
Autor:
Papazafeiropoulos, Anastasios, Pan, Cunhua, Kourtessis, Pandelis, Chatzinotas, Symeon, Senior, John M.
Intelligent reflecting surface (IRS), consisting of low-cost passive elements, is a promising technology for improvingthe spectral and energy efficiency of the fifth-generation (5G)and beyond networks. It is also noteworthy that an IRS canshape the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2658::afbd8aa508a9fa88ab79ade14795c4b4
http://orbilu.uni.lu/handle/10993/53078
http://orbilu.uni.lu/handle/10993/53078
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