Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ahmed IY"'
Publikováno v:
General Medicine Open. 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f60a8460e2a852ac29a48d9d9bb3c38
https://doi.org/10.15761/gmo.1000150
https://doi.org/10.15761/gmo.1000150
Autor:
Ahmed Iyanda Sulyman, Calvin Henggeler
Publikováno v:
Information, Vol 13, Iss 2, p 100 (2022)
This paper discusses the concept and practicality of internet-of-things (IoT) link security enhancements using multiple-input multiple-output (MIMO) and beamforming solutions at the physical layer of the wireless system. Large-scale MIMO and beamform
Externí odkaz:
https://doaj.org/article/3604fbbc4e344d98acb3c4da89ea2188
Publikováno v:
IEEE Access, Vol 5, Pp 6813-6823 (2017)
This paper proposes a hybrid structure for multi-stream large-scale multi-input multi-output (MIMO) beamforming systems, in single-user scenario, using a Hadamard radio frequency (RF) codebook with low-bit resolution phase shifters. We show that Hada
Externí odkaz:
https://doaj.org/article/f9114f83ffba40318b9c3f78adb9d0b6
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
Multiple-input multiple-output (MIMO) wireless technology in combination with orthogonal frequency-division multiplexing (MIMO-OFDM) is an attractive technique for next-generation wireless systems. However, the performance of wireless links is severe
Externí odkaz:
https://doaj.org/article/16757fd476cd431b94fce129c23a4214
Autor:
Abdulmalik Alwarafy, Ahmed Iyanda Sulyman, Abdulhameed Alsanie, Saleh A. Alshebeili, Hatim M. Behairy
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
This article proposes receiver spatial diversity propagation path-loss channel models based on real-field measurement campaigns that were conducted in a line-of-site (LOS) and non-LOS (NLOS) indoor laboratory environment at 2.4 GHz. We apply equal ga
Externí odkaz:
https://doaj.org/article/b5d322d1478c4ec098ac38523e935bac
Publikováno v:
International Journal of Antennas and Propagation, Vol 2015 (2015)
This paper presents radio frequency (RF) capacity estimation for millimeter wave (mm-wave) based fifth-generation (5G) cellular networks using field-level simulations. It is shown that, by reducing antenna beamwidth from 65° to 30°, we can enhance
Externí odkaz:
https://doaj.org/article/835449ba6341400fbdbc20b69ded5465
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
This paper presents a rateless space time block code (RSTBC) for massive MIMO systems. The paper illustrates the basis of rateless space time codes deployments in massive MIMO transmissions over wireless erasure channels. In such channels, data may b
Externí odkaz:
https://doaj.org/article/d6e8618de0154ccf82eac1887bb56a23
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
Externí odkaz:
https://doaj.org/article/9dcd06ac81864dfb8dddece223800abb
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
This paper presents the concept of spatial modulation (SM) scheme for massive multiuser MIMO (MU-MIMO) system. We consider a MU-MIMO system where K users, each equipped with multiple antennas, are jointly serviced by a multiantenna base station trans
Externí odkaz:
https://doaj.org/article/b22d04c8af3443a5abb25234e68a1d9b
Autor:
Ahmed Iyanda Sulyman
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2011 (2011)
Externí odkaz:
https://doaj.org/article/fe84f67f847f41a2a5226345b8ed020b