Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Mohammed Sh. Ahmed"'
1
Reducing peak to average power ratio (PAPR) for visible light communications (VLC) system using Walsh–Hadamard precoded discrete Hartley transforms
Autor: Mohammed K. Mohaisen, Mounir T. Hamood, Mohammed Sh. Ahmed
Publikováno v: Journal of Optical Communications.
In visible light communication (VLC), intensity modulation with direct detection (IM/DD) based on DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM) is used to transfer data at a high rate. Because OFDM signals are modulated usin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aecea121cb3b74dd812c795ddb9ee0ae
https://doi.org/10.1515/joc-2022-0102
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2
Big data classification based on improved parallel k-nearest neighbor
Autor: Ahmed Hussein Ali, Mostafa Abduhgafoor Mohammed, Raed Abdulkareem Hasan, Maan Nawaf Abbod, Mohammed Sh. Ahmed, Tole Sutikno
Publikováno v: TELKOMNIKA (Telecommunication Computing Electronics and Control). 21:235
In response to the rapid growth of many sorts of information, highway data has continued to evolve in the direction of big data in terms of scale, type, and structure, exhibiting characteristics of multi-source heterogeneous data. The k-nearest neigh
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f2a3122613e5a9a98db51658157b532
https://doi.org/10.12928/telkomnika.v21i1.24290
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3
Efficient Scheme to Suppress the Disturbance of Impulsive Noise among IoT Devices
Autor: Salah A. Aliesawi, Mohammed Sh. Ahmed, Ahmed N. Rashid
Publikováno v: Journal of Southwest Jiaotong University. 54
Internet of Things (IoT) is a network of enormous things that are connected together for data communication. Therefore, IoT objects require an efficient technique for data communication. When transmitter power efficiency and performance improvement a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3db10e6a7b9f88b5d7c5eafca337fb4b
https://doi.org/10.35741/issn.0258-2724.54.3.15
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4
Automating Passport Localization Process Based on WLST-RFID Algorithm
Autor: Ahmed N. Rashid, Mohammed Sh. Ahmed, Salah A. Aliesawi
Publikováno v: Journal of Southwest Jiaotong University. 54
The electronic-passport is majorly used in worldwide. Many countries have started changing their conventional passports to electronic-passports due to upgraded security of the passport holder. Passports and any document probably enhanced using recent
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16758cb1010856409449f0d824d0059b
https://doi.org/10.35741/issn.0258-2724.54.3.20
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5
Reducing peak to average power ratio (PAPR) of OFDM systems using complex BIFORE precoding transform
Autor: Mohanad A. Saleh, Mohammed Sh. Ahmed, Mounir T. Hamood
Publikováno v: IOP Conference Series: Materials Science and Engineering. 1058:012067
Due to its valuable features, orthogonal frequency division multiplexing (OFDM) is utilized extensively with the modern communication systems. In despite, such employment is impacted with some drawbacks that has been received a great interest in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bab02330c0186dec54723275deb37bcd
https://doi.org/10.1088/1757-899x/1058/1/012067
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7
Suitability of Using Julia Set Images as a Cover for Hiding Information
Autor: Nada Qasim Mohammed, Qasim Mohammed Hussein, Mohammed Sh. Ahmed
Publikováno v: 2018 Al-Mansour International Conference on New Trends in Computing, Communication, and Information Technology (NTCCIT).
Steganography is a technique that is used to secret information in a cover media that ensure the secrete of messages and their existence, not notice from others. A blind steganography means that secret information can be extracted without need the or
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1762ad6fd73617c069013084616f721
https://doi.org/10.1109/ntccit.2018.8681185
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8
Iterative multipacket detection with FDE based MAC protocol in vehicular ad hoc networks
Autor: Mohammed Sh. Ahmed, Salah A. Aliesawi, Ahmed N. Rashid
Publikováno v: Periodicals of Engineering and Natural Sciences (PEN). 7:1041
Wireless access in vehicular environments (WAVE), is especially designed to support vehicular ad hoc networks (VANETs) requirements, where rapidly changing channel conditions introduces unsynchronized transmissions. In such networks, instead of deali
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::038db68ad409626d0a0521ffc0a00e5d
https://doi.org/10.21533/pen.v7i3.623
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10
OFDM Based on Low Complexity Transform to Increase Multipath Resilience and Reduce PAPR
Autor: Mohammed Sh. Ahmed, Charalampos C. Tsimenidis, Said Boussakta, Bayan S. Sharif
Publikováno v: IEEE Transactions on Signal Processing. 59:5994-6007
This paper introduces a new multicarrier system using a low computational complexity transform that combines the Walsh-Hadamard transform (WHT) and the discrete Fourier transform (DFT) into a single fast orthonormal unitary transform. The proposed tr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a69b81ec1bb2758cb9fc6987a03c0870
https://doi.org/10.1109/tsp.2011.2166551
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