Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Adnan Kiayani"'
Publikováno v:
IEEE Access, Vol 11, Pp 128337-128353 (2023)
Passive Intermodulation (PIM) is a well-known phenomenon that poses a significant challenge to modern wireless communication systems. Although efforts have been made to reduce or mitigate the PIM through hardware design, frequency planning, and/or ba
Externí odkaz:
https://doaj.org/article/7565186155694275876cc8b2dfc48441
Publikováno v:
Journal of Electrical and Computer Engineering, Vol 2012 (2012)
Direct-conversion architecture-based orthogonal frequency division multiplexing (OFDM) systems are troubled by impairments such as in-phase and quadrature-phase (I/Q) imbalance and carrier frequency offset (CFO). These impairments are unavoidable in
Externí odkaz:
https://doaj.org/article/08a2871111444c16b2a9fabdea69a1b0
Autor:
Muhammad Zeeshan Waheed, Vesa Lampu, Adnan Kiayani, Marko Fleischer, Lauri Anttila, Mikko Valkama
Publikováno v:
2022 56th Asilomar Conference on Signals, Systems, and Computers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7746673b6497d3e45ecaad5f32509b32
https://doi.org/10.1109/ieeeconf56349.2022.10051880
https://doi.org/10.1109/ieeeconf56349.2022.10051880
Autor:
Pablo Pascual Campo, Adnan Kiayani, Kari Stadius, Marko Kosunen, Mikko Valkama, Markus Allen, Lauri Anttila, Matias Turunen, Dani Korpi, Muhammad Zeeshan Waheed, Jussi Ryynanen
This article presents novel solutions for suppressing passive intermodulation (PIM) distortion in frequency-division duplexing (FDD)-based radio transceivers, stemming from nonlinear radio frequency (RF) components and simultaneous transmission and r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a20ceebd90a75d9d03e9de8a9da661
https://trepo.tuni.fi/handle/10024/127540
https://trepo.tuni.fi/handle/10024/127540
Publikováno v:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. 65(7):2427-2442
In this article, we provide detailed modeling of the spurious intermodulation distortion (IMD) products appearing in the own receiver (RX) operating band as a result of coexisting transmitter (TX) and RX nonlinearities with noncontiguous carrier aggr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6603b1b16c3a2a23baa0509dca649681
http://juuli.fi/Record/0281973817
http://juuli.fi/Record/0281973817
Publikováno v:
2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G).
This paper addresses digital cancellation of passive intermodulation (PIM) products in simultaneous transmit-receive systems, with specific emphasis on frequency-division duplexing (FDD) based LTE and 5G New Radio (NR) networks. Building on mathemati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89e47a1743bb23f343f2fe1916167bb5
https://doi.org/10.1109/imc-5g47857.2019.9160361
https://doi.org/10.1109/imc-5g47857.2019.9160361
Autor:
Dani Korpi, Lauri Anttila, Mikko Valkama, Pablo Pascual Campo, Muhammad Zeeshan Waheed, Adnan Kiayani
Publikováno v:
ACSSC
Modern radio systems and transceivers utilize carrier aggregation (CA) to meet the demands for higher and higher data rates. However, the adoption of CA in the existing Long Term Evolution (LTE)-Advanced and emerging 5G New Radio (NR) mobile networks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::430a46dd6f5557c637019da443c07c99
http://arxiv.org/abs/1812.03655
http://arxiv.org/abs/1812.03655
Publikováno v:
GLOBECOM Workshops
A key challenge in realizing simultaneous radio transmission and reception is suppressing the so-called self-interference (SI) caused by coupling of the own transmitter (TX) signal to the receiver (RX). Moreover, the inherent nonlinearities of the TX
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bdbd1b7adb99f144cebddeb5f4383ef
https://doi.org/10.1109/glocomw.2018.8644233
https://doi.org/10.1109/glocomw.2018.8644233
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:82-99
Single-carrier frequency-division multiple access (SC-FDMA), which is a modified form of orthogonal frequency-division multiple access (OFDMA), has been adopted as the uplink physical-layer radio access technique for the Third-Generation Partnership
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce50bd605dc573d0994bf355ddaa5202
https://doi.org/10.1109/tvt.2015.2397277
https://doi.org/10.1109/tvt.2015.2397277
In this paper, a novel decorrelation-based concurrent digital predistortion (DPD) solution is proposed for dual-band transmitters (TXs) employing a single wideband power amplifier (PA), and utilizing only a single feedback receiver path. The proposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b999f1a700e2b8c1c445088df018385f
https://trepo.tuni.fi/handle/10024/126242
https://trepo.tuni.fi/handle/10024/126242