Zobrazeno 1 - 10
of 25
pro vyhledávání: '"S. M. Elhalafawy"'
Due to the rapid demand for wireless services and the increase in the wireless device count, there is a lack of available spectrum bands which constrain the further development of wireless communication .Therefore, Cognitive Radio (CR) has been adopt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb35603e30d9458824a0ebfef4f68a6c
Publikováno v:
Menoufia Journal of Electronic Engineering Research. 27:127-138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a093262c4f2f161b13f62a388b607422
https://doi.org/10.21608/mjeer.2018.64403
https://doi.org/10.21608/mjeer.2018.64403
Publikováno v:
Menoufia Journal of Electronic Engineering Research. 26:413-426
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::682d3c651549e27b057609c7cde22a8a
https://doi.org/10.21608/mjeer.2017.63613
https://doi.org/10.21608/mjeer.2017.63613
Energy Efficient Intra Cluster Transmission in Grid Clustering Protocol for Wireless Sensor Networks
Autor:
Abd Elwahab Fawzy, Waleed Saad, Ahmed S. Elkorany, Asmaa Amer Qasem, S. M. Elhalafawy, Mona Shokair
Publikováno v:
Wireless Personal Communications. 97:915-932
Clustering based routing protocols have a pivotal role in wireless sensor networks (WSN) due to efficient energy consumption of limited power sensor node that is the prime challenge in WSN. Intra-cluster transmission and cluster size have great impac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca0996a1e537c5f0f7c60207e478eb35
https://doi.org/10.1007/s11277-017-4543-2
https://doi.org/10.1007/s11277-017-4543-2
Publikováno v:
International Journal of Sensors, Wireless Communications and Control. 6:129-140
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddd573e3906b11949c976bf15c3b206e
https://doi.org/10.2174/2210327906666160727161736
https://doi.org/10.2174/2210327906666160727161736
Autor:
S. M. Elhalafawy, Hala S. El-sayed, Amira Shafik, Fathi E. Abd El-Samie, Osama S. Faragallah, Salaheldin M. Diab, B. M. Sallam
Publikováno v:
International Journal of Speech Technology. 18:565-581
This paper proposes the utilization of SVD digital audio watermarking to increase the security of automatic speaker identification (ASI) systems and presents a study for the effect of watermarking on the ASI system performance. The SVD audio watermar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c61e73909d2c8e360c9d7c38c579ccba
https://doi.org/10.1007/s10772-015-9292-6
https://doi.org/10.1007/s10772-015-9292-6
Autor:
Mohsen A. M. El-Bendary, El-Sayed M. El-Rabaie, Naglaa F. Soliman, Faisal S. Al-kamali, Mohamed A. Zein Eldin, Ibrahim M. Eldokany, Mai H. Shahieen, Mohammed Abd El-Naby, Ibrahim F. Elashry, Fathi E. Abd El-Samie, S. M. Elhalafawy
Publikováno v:
Wireless Personal Communications. 84:475-521
In this paper, the impact of carrier frequency offset (CFO) and CFO compensation on the transmission of encrypted images with different orthogonal frequency division multiplexing (OFDM) versions is studied. The investigated OFDM versions are the fast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a089461a51f1f49d21e4d582784c8a98
https://doi.org/10.1007/s11277-015-2645-2
https://doi.org/10.1007/s11277-015-2645-2
Publikováno v:
International Journal of Computer Applications. 81:27-32
Cognitive relay networks (CRNs) combine cognitive radio technique and cooperative relay technology. Cognitive radio offers a tempting solution to increase spectrum usage efficiency by proposing opportunistic usage of frequency bands between primary a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7f3c2e7536b29d1e761c7c984c1fbc1
https://doi.org/10.5120/13977-1972
https://doi.org/10.5120/13977-1972
Publikováno v:
Optical and Quantum Electronics. 46:863-869
We investigated the surface plasmon resonances of multi-wall carbon nanotube (MWCNT) for applications as the optical antenna. We calculated the near-field and far-field response of MWCNT using finite integral technique. In addition, the effect of sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::257dd49889feff64e2a1ff8ba70c7576
https://doi.org/10.1007/s11082-013-9797-7
https://doi.org/10.1007/s11082-013-9797-7
Publikováno v:
Advances in nano research. 1:13-27
Carbon nanotube characterized by additional inductive effect as compared with the traditional conductors like copper wires of the same size. Consequently, carbon nanotubes have high characteristic impedance and slow wave propagation in comparison wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7d0697bbe4f5f08bf1972e770e98b43
https://doi.org/10.12989/anr.2013.1.1.013
https://doi.org/10.12989/anr.2013.1.1.013