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pro vyhledávání: '"Jahangir Dadkhah Chimeh"'
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
IST
Massive MIMO (M. MIMO) is one of the main parts in 5G radio sections. It is constituted of a large number of antennas used in the TDD/FDD modes (32, 64 or even more antennas) and is capable to process information very fast. M. MIMO is constituted of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dce16a57439de6e1b7fcf7583fbd166a
https://doi.org/10.1109/ist50524.2020.9345868
https://doi.org/10.1109/ist50524.2020.9345868
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
WCNC Workshops
M2M, IoT and high speed video services generate a high volume of information in the communication networks. Beside the above services, by increasing the traffic volume through Startups and Accelerators in the smart cities and establishing the new Big
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef187c9e4b93dfc03b3dadaef4a31ba2
https://doi.org/10.1109/wcncw48565.2020.9124735
https://doi.org/10.1109/wcncw48565.2020.9124735
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
انرژیهای تجدیدپذیر و نو, Vol 5, Iss 1, Pp 15-20 (2018)
Upswing trend in society GDP requires a communication development and increasing the energy consumption. Communication development, itself, incurs increasing the energy consumption. About 7% of power generation is of renewable type in Iran which is l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::b2147051bf8a22a94da7320bf7d4e87a
http://www.jrenew.ir/article_68594_7052708dce9f9b2880e434556d5f1140.pdf
http://www.jrenew.ir/article_68594_7052708dce9f9b2880e434556d5f1140.pdf
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering). 11:484-486
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb7c8bcc12d9dbb304cb1918715e668c
https://doi.org/10.2174/2352096511666180312160234
https://doi.org/10.2174/2352096511666180312160234
Publikováno v:
Innovative Mobile and Internet Services in Ubiquitous Computing ISBN: 9783319615417
IMIS
IMIS
Mobile ecosystem contributes to gross domestic product (GDP). GDP contribution to the economy can be evaluated by the generated value added. Since value added and subscribers growth of mobile operators is decreasing in the world year-on-year from 201
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1659c42f875ae6ac53371b80b315058
https://doi.org/10.1007/978-3-319-61542-4_64
https://doi.org/10.1007/978-3-319-61542-4_64
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
Wireless Personal Communications. 78:107-118
Regulatory is a governmental organization that is responsible for evaluating the quality of service (QoS) of the network periodically. To verify the mobile operators' performance, Regulatory should measure network's coverage and QoS parameters like R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6f0b2f66edabdbb6978aaa76cb758f5
https://doi.org/10.1007/s11277-014-1738-7
https://doi.org/10.1007/s11277-014-1738-7
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
International Journal of Wireless Information Networks. 20:385-391
Today, frequency spectrum is a national resource and thus its efficiency is important. Dynamic frequency allocation, smart antennas, RAKE receivers, OFDM, AMC, etc., are some of the important methods to enhance the spectral efficiently. In line with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d64c6f280d6dc39b3b7d78481f84155f
https://doi.org/10.1007/s10776-013-0219-3
https://doi.org/10.1007/s10776-013-0219-3
Publikováno v:
Key Engineering Materials. 500:263-268
Providing an available wideband and better antenna beam forming are two good profits of millimeter wave (mmWave) technology. MmWave technology makes radio systems lighter and smaller and radars more precise. Today, commercial MmWave equipment work be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1be64e7d789417f40ae207662ba0ecf3
https://doi.org/10.4028/www.scientific.net/kem.500.263
https://doi.org/10.4028/www.scientific.net/kem.500.263
Autor:
Jahangir Dadkhah Chimeh
Publikováno v:
IEICE Electronics Express. 7:1342-1348
User Equipment (UE) uses data and control channels to communicate with the base station. It is necessary always to exchange control information before data exchange, in other words control information is used to establish data channels. Data channels
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9d3b37eaab4094814c2eed5d084d54c
https://doi.org/10.1587/elex.7.1342
https://doi.org/10.1587/elex.7.1342
Publikováno v:
annals of telecommunications - annales des télécommunications. 64:239-246
Mobile telecommunication new services are based on data networks specially Internet. These services include http, telnet, ftp, Simple Mail Transfer Protocol, etc. Besides, we recognize a mobile network as a multiuser network. Transmission Control Pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b3727c4d0f0b93d8130c48daed25b0e
https://doi.org/10.1007/s12243-008-0078-6
https://doi.org/10.1007/s12243-008-0078-6