Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Yunsung Choi"'
Publikováno v:
IEEE Access, Vol 8, Pp 198950-198963 (2020)
An out-of-cell user (referred to UE2) is usually required to receive or send signals from or to a base station (BS) that is connected to wider area networks. In order to provide a wireless connection between BS and UE2 and hence extend their radio co
Externí odkaz:
https://doaj.org/article/dbaad94580eb4efaa2515254e854f6e0
Autor:
Yunsung Choi, Dongwoo Kim
Publikováno v:
IEEE Access, Vol 8, Pp 68649-68667 (2020)
Collaborative spectrum sharing (CSS) between primary and secondary users (PU and SU) is an effective way of utilizing limited radio spectrum. In CSS, cognitive SU acts as a relay for PU, which facilitates the PU to send its packet with a lower error
Externí odkaz:
https://doaj.org/article/b35f9703fd6e44a4a94d2dd0ac29e1fb
Publikováno v:
Land, Vol 11, Iss 3, p 329 (2022)
In ground-based harvesting, machine traffic can cause soil physical disturbances including excessive compaction, the displacement of the soil surface and topsoil, and rutting. These impacts can indirectly hamper seedling survival and tree growth beca
Externí odkaz:
https://doaj.org/article/26109d0479c34c7f865619762b7221ba
Publikováno v:
Forests, Vol 12, Iss 7, p 908 (2021)
Cable yarding technology remains the most effective operation in steep terrain harvesting systems; however, it has limitations and challenges. Using cable yarders (tractor-, truck-, and excavator-based) to extract tree lengths and whole trees has bee
Externí odkaz:
https://doaj.org/article/29ce5c87942c4ab595017a8ec45266ea
Autor:
Yunsung Choi, Dongwoo Kim
Publikováno v:
2022 RIVF International Conference on Computing and Communication Technologies (RIVF).
Publikováno v:
International Journal of Environmental Research and Public Health, Vol 19, Iss 396, p 396 (2022)
International Journal of Environmental Research and Public Health
International Journal of Environmental Research and Public Health; Volume 19; Issue 1; Pages: 396
International Journal of Environmental Research and Public Health
International Journal of Environmental Research and Public Health; Volume 19; Issue 1; Pages: 396
Maternal mortality remains a major global health challenge in sub-Saharan Africa. Senegal is one of the countries in the region that lagged behind in reaching the Millennium Development Goal 5, the deadline of which passed in 2015. The objective of t
Publikováno v:
IEEE Access, Vol 8, Pp 198950-198963 (2020)
An out-of-cell user (referred to UE2) is usually required to receive or send signals from or to a base station (BS) that is connected to wider area networks. In order to provide a wireless connection between BS and UE2 and hence extend their radio co
Autor:
Dongwoo Kim, Yunsung Choi
Publikováno v:
IEEE Wireless Communications Letters. 8:681-684
In an untrusted multiuser downlink system (UTMS) where a desired user is opportunistically selected and all the other users are potential eavesdroppers (Eves), the system performance with security requirement will deteriorate as the number of users g
Autor:
Dongwoo Kim, Yunsung Choi
Publikováno v:
IEEE Wireless Communications Letters. 7:824-827
In this letter, we show that superposition transmission (SuT) with optimal power and rate allocation achieves zero intercept probability (IP) without assuming infinite signal-to-noise power ratio and furthermore without significant sacrifice of the s
Autor:
Dongwoo Kim, Yunsung Choi
Publikováno v:
2018 International Conference on Advanced Technologies for Communications (ATC).
In this paper, we investigate a buffer-aided nonorthogonal multiple access (NOMA) system with coordinated direct and relay transmission (CDRT), in which the buffers are equipped in user equipment 1 (UE1) directly connected to a base station (BS) and