Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Fikadu T. Dagefu"'
Autor:
Brian M. Sadler, Fikadu T. Dagefu, Jeffrey N. Twigg, Gunjan Verma, Predrag Spasojevic, Richard J. Kozick, Justin Kong
Publikováno v:
IEEE Access, Vol 12, Pp 21954-21984 (2024)
Autonomous teams of unmanned ground and air vehicles rely on networking and distributed processing to collaborate as they jointly localize, explore, map, and learn in sometimes difficult and adverse conditions. Co-designed intelligent wireless networ
Externí odkaz:
https://doaj.org/article/87e8680c592c4656b8a9101cb421c003
Autor:
Jihun Choi, Fikadu T. Dagefu
Publikováno v:
IEEE Access, Vol 11, Pp 111402-111409 (2023)
This paper presents a compact three-port antenna design suitable for use in mobile radio systems that require polarization and pattern diversity. The antenna design utilizes a shorted bow-tie patch split in half with an air gap and a top-loaded two-e
Externí odkaz:
https://doaj.org/article/561d40c13cbe413ba534c69008e1ca0e
Publikováno v:
IEEE Access, Vol 8, Pp 134351-134362 (2020)
In this paper, we study a wireless network where multiple distributed transmitters control the phases of their signals so that they can be constructively combined at a client receiver. Unlike centralized beamforming with co-located and phase-synchron
Externí odkaz:
https://doaj.org/article/d4eb7159ca55453183ecc2176054c72f
Publikováno v:
IEEE Access, Vol 5, Pp 24120-24127 (2017)
A low-power, low-frequency, ad hoc networking paradigm is considered for robust communications among mobile agents in complex non-line-of-sight (NLOS) indoor and urban-type scenarios. Compared with higher frequency, the lower portion of the very high
Externí odkaz:
https://doaj.org/article/510f9b47786d4b6abff0feb147ed1343
Publikováno v:
IEEE Antennas and Propagation Magazine. 65:14-26
Publikováno v:
IEEE Wireless Communications Letters. 12:6-10
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:10113-10122
Publikováno v:
IEEE Robotics and Automation Letters. 7:9167-9174
Publikováno v:
2023 IEEE Wireless Communications and Networking Conference (WCNC).
Autor:
Fikadu T. Dagefu, Jihun Choi
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:2277-2282
This communication presents a low-profile and efficient low-VHF antenna designed for compact Unmanned Ground Vehicles (UGVs). An effective miniaturization strategy for a top-loaded multi-element monopole antenna is proposed to improve its gain while