Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Youssef Jaffal"'
Autor:
Youssef Jaffal, Ibrahim Abou-Faycal
Publikováno v:
Entropy, Vol 22, Iss 9, p 924 (2020)
We consider a communication system whereby T-seconds time-limited codewords are transmitted over a W-Hz band-limited additive white Gaussian noise channel. In the asymptotic regime as WT→∞, it is known that the maximal achievable rates with such
Externí odkaz:
https://doaj.org/article/1ede7cf1bc2c4806a1f95ab6275d888d
Autor:
Youssef Jaffal, Alex Alvarado
Publikováno v:
IEEE Communications Letters, 26(11), 2670-2674. Institute of Electrical and Electronics Engineers
Faster than Nyquist signaling increases the spectral efficiency of pulse amplitude modulation by accepting intersymbol interference, where an equalizer is needed at the receiver. Since the complexity of an optimal equalizer increases exponentially wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c36bf5173149b985abc472dbe428404c
https://doi.org/10.1109/lcomm.2022.3201989
https://doi.org/10.1109/lcomm.2022.3201989
Autor:
Youssef Jaffal, Alex Alvarado
Simple fiber optic communication systems can be implemented using energy modulation of isolated time-limited pulses. Fundamental solitons are one possible solution for such pulses which offer a fundamental advantage: their shape is not affected by fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6886e9d13d2c4ee9a6d9a733f8a7bf1b
Autor:
Ibrahim Abou-Faycal, Youssef Jaffal
Publikováno v:
ISIT
We study the rates of source coding a T -seconds finite duration piece from a W -Hz band-limited real white Gaussian process with the mean squared error as a distortion measure. First we derive a discrete representation by projecting the signal of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::886d491cc4a74fc7bdbbc365cb695ad2
https://doi.org/10.1109/isit44484.2020.9174495
https://doi.org/10.1109/isit44484.2020.9174495
Autor:
Ibrahim Abou-Faycal, Youssef Jaffal
Publikováno v:
WCNC
In this paper we study optimal signaling when using time-limited pulses over band-limited Additive White Gaussian Noise channels. We adopt an information theoretic approach and quantify the achievable rates of such systems. We show that the Nyquist c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::338d2d0359ad4c0fcbcdc4f8c063b7ff
https://doi.org/10.1109/wcnc.2019.8886034
https://doi.org/10.1109/wcnc.2019.8886034
Autor:
Ibrahim Abou-Faycal, Youssef Jaffal
Publikováno v:
WCNC
Practicalcommunication systems use finite duration pulses. As the time-limited pulses have infinite bandwidth, they lose some of their energy when passed through a band-limited channel and their support in time becomes infinite. We derive the achieva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79e77eb9a8ca3a00ead747750ff9e59d
https://doi.org/10.1109/wcnc.2019.8885512
https://doi.org/10.1109/wcnc.2019.8885512
Publikováno v:
SPAWC
In this paper, we propose a simplified approach for the Mixed Integer Non-linear Programming (MINLP) problem in the context of dynamic resource allocation for multiuser downlink Orthogonal Frequency Division Multiplexing (OFDM) systems. Our solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb0d83606a1bef1b8d1a1470275c9582
https://doi.org/10.1109/spawc.2015.7227020
https://doi.org/10.1109/spawc.2015.7227020
Publikováno v:
SPAWC
The Filter Bank Multicarrier (FBMC) modulation scheme has recently gained a lot of research interest due to its characteristics in time and frequency spanning. However, as Orthogonal Frequency Division Multiplexing (OFDM), it suffers from high Peak t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47f549ecab88cd254cf39d6ba1a2e111
https://doi.org/10.1109/spawc.2015.7227010
https://doi.org/10.1109/spawc.2015.7227010
Publikováno v:
MELECON 2014 - 2014 17th IEEE Mediterranean Electrotechnical Conference.
In this paper, we propose a novel positioning algorithm based on hybrid cooperative techniques. The proposed algorithm is divided into two main categories: initial positioning and tracking. After acquiring an estimate about the distances of an un-loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d01c4745806e97e71a892dee132706
https://doi.org/10.1109/melcon.2014.6820560
https://doi.org/10.1109/melcon.2014.6820560
Publikováno v:
MELECON 2014 - 2014 17th IEEE Mediterranean Electrotechnical Conference.
In this paper, we consider an LTE downlink Multiple Input Multiple Output (MIMO) Coordinated Multipoint (CoMP) network. We propose a new adaptive precoding method applied on the signals being transmitted by the set of active antennas. Based on Joint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30090e392f3efc6b6ab0f2ceec143877
https://doi.org/10.1109/melcon.2014.6820558
https://doi.org/10.1109/melcon.2014.6820558