Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Nima Reisi"'
Resource Management in Hybrid Millimeter-Wave and Microwave Ultra-Dense Networks using TDD Duplexing
Autor:
Zahra Mahjoobi, Nima Reisi
Publikováno v:
مهندسی مخابرات جنوب, Vol 12, Iss 47, Pp 1-16 (2024)
Millimeter wave (mW) communication is one of the key enabling technologies for meeting the vast data demand growth and bandwith scarcity. The mmWave band offers higher bandwidth compare with those presently used in commercial wireless systems, which
Externí odkaz:
https://doaj.org/article/64dfe0eda8164b3ba351d5368df21b40
Autor:
Nima Reisi
Publikováno v:
مهندسی مخابرات جنوب, Vol 12, Iss 46, Pp 1-18 (2024)
In this paper, we study relay-assisted underlay D2D communication operating at millimeter-wave (mmWave) band in which half-duplex/full-duplex relays may assist D2D users to improve transmission quality. Our aim is to jointly select D2D transmission m
Externí odkaz:
https://doaj.org/article/3bb4b6a99cf842b799e414377d53955e
Publikováno v:
IEEE Access, Vol 5, Pp 975-986 (2017)
In this paper, we study the distributed energy-based detectors for spectrum sensing in cognitive radio networks. We assume that the sensing channel includes both small-scale and large-scale fading. The small-scale fading is modeled as Nakagami-m and
Externí odkaz:
https://doaj.org/article/f9364835905d4ce8ae23c5dc7a5c065b
Publikováno v:
International Journal of Information and Communication Technology Research, Vol 3, Iss 3, Pp 11-18 (2011)
Energy detection has been adopted as an alternative spectrum sensing method for cognitive radios due to its low computational complexity and not requiring a priori information about the signal to be detected. However, noise uncertainty and hidden ter
Externí odkaz:
https://doaj.org/article/8b482d995093410b808283a70cecc4cf
Autor:
Saba Bazyar, Nima Reisi
Publikováno v:
2020 28th Iranian Conference on Electrical Engineering (ICEE).
In this paper, a new framework for utilizing Non-Orthogonal-Multiple-Access (NOMA) technology in cellular networks is proposed. In this framework, the aim is to transmit a broadcast message, which is intended for all users, and a multicast message, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d0f491a960096a7c1c448a43e32df48
https://doi.org/10.1109/icee50131.2020.9260882
https://doi.org/10.1109/icee50131.2020.9260882
Publikováno v:
2020 28th Iranian Conference on Electrical Engineering (ICEE).
Cell-Free Massive MIMO is a distributed Massive MIMO network, consisting of many low-cost, low-energy access points (APs) connected to a Central Control Unit (CCU) via a backhaul network. The number of AP antennas far surpasses the number of users. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baaff5cb5c85ed8c10446bc6834a88c6
https://doi.org/10.1109/icee50131.2020.9261021
https://doi.org/10.1109/icee50131.2020.9261021
Publikováno v:
IEEE Access, Vol 5, Pp 975-986 (2017)
In this paper, we study the distributed energy-based detectors for spectrum sensing in cognitive radio networks. We assume that the sensing channel includes both small-scale and large-scale fading. The small-scale fading is modeled as Nakagami- $m$ a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9558d8ab6698c59a5b1f28d2f654291
https://doi.org/10.1109/access.2016.2628860
https://doi.org/10.1109/access.2016.2628860
Publikováno v:
IEEE Wireless Communications Letters. 3:245-248
In this paper, we study energy detection-based cooperative Spectrum Sensing (SS) over frequency selective channels in cognitive radio networks. We treat primary signal as an unknown deterministic signal with known power. We assume a generalized fadin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0e73c5e14f0cc4fa1eeeb7e4f9d0f8a
https://doi.org/10.1109/wcl.2014.020614.130864
https://doi.org/10.1109/wcl.2014.020614.130864
Publikováno v:
IEEE Transactions on Wireless Communications. 12:5406-5412
In this paper, we study distributed energy detectors for spectrum sensing in cognitive radio networks. We treat the primary signal as unknown and deterministic with a known power and the channels as random with a Nakagami-Lognormal mixture distributi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aab2a21ce89e46ee79942ae697edaa0
https://doi.org/10.1109/twc.2013.092813.120549
https://doi.org/10.1109/twc.2013.092813.120549
Publikováno v:
Wireless Personal Communications. 72:1691-1706
The objective of cooperative spectrum sensing is to collaboratively detect the presence of the primary user by the aid of multiple secondary users. It is known that the performance of such a framework substantially depends on the fading assumption. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fb6c9ed2cbfd5ccf9447a7948d9b13f
https://doi.org/10.1007/s11277-013-1129-5
https://doi.org/10.1007/s11277-013-1129-5