Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Ahmad Alamm"'
Autor:
Vishnu V. Ratnam, Jianhua Mo, Ahmad Alammouri, Boon Loong Ng, Jianzhong Zhang, Andreas F. Molisch
Publikováno v:
IEEE Access, Vol 10, Pp 73364-73377 (2022)
Hybrid beamforming is an attractive solution to build cost-effective and energy-efficient transceivers for millimeter-wave and terahertz systems. However, conventional hybrid beamforming techniques rely on analog components that generate a frequency
Externí odkaz:
https://doaj.org/article/adeb569ccd934b08a77857a744894ba6
Autor:
Ahmad Alammouri, Jianhua Mo, Vishnu V. Ratnam, Boon Loong Ng, Robert W. Heath, Juho Lee, Jianzhong Zhang
Publikováno v:
IEEE Access, Vol 10, Pp 88872-88884 (2022)
In this paper, we establish the potential of joint phase-time arrays (JPTAs) for uplink coverage extension in cellular systems. JPTA allows the base station (BS) to create frequency-dependent wide-beams without sacrificing the array gain. In this wor
Externí odkaz:
https://doaj.org/article/6041e9d6d7d141da916cdb7d3b6c7ce6
Publikováno v:
IEEE Access, Vol 7, Pp 60532-60544 (2019)
This paper contributes a comprehensive study on the effect of the user hand grip on the design of 5G millimeter-wave (mmWave) mobile handsets, specifically in terms of the antenna module placement and the beamforming codebook. The high-frequency stru
Externí odkaz:
https://doaj.org/article/ea56d2ec1168416a9fbbe87f773ee853
Autor:
Jianhua Mo, Boon Loong Ng, Sanghyun Chang, Pengda Huang, Mandar N. Kulkarni, Ahmad Alammouri, Jianzhong Charlie Zhang, Jeongheum Lee, Won-Joon Choi
Publikováno v:
IEEE Access, Vol 7, Pp 98387-98404 (2019)
A beam codebook of 5G millimeter wave (mmWave) for data communication consists of multiple high-peak-gain beams to compensate the high pathloss at the mmWave bands. These beams also have to point to different angular directions, such that by performi
Externí odkaz:
https://doaj.org/article/a58971b51cb24cba9e472e2b10e0716a
Publikováno v:
Intelligent Automation & Soft Computing. 37:455-470
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab6e3a35aa3a1d6c8aee598ddedfecf9
https://doi.org/10.32604/iasc.2023.038338
https://doi.org/10.32604/iasc.2023.038338