… benefits of NOMA, D2D, and the unlicensed spectrum in a corporation system, we investigate
a D2D communication network with NOMA and an unlicensed spectrum and an approach …

… systems, D2D-Unlicensed (D2D-U) communication turns out … underlaid D2D communications
in the unlicensed spectrum. … technologies in the unlicensed spectrum such as Wi-Fi Direct […

… of licensed spectrum in [14] and the parameters of unlicensed spectrum and WiFi network
in [10]. In the simulation, we will consider the traditional D2D communications without the LTE-…

… spectrum by extending cellular communications to unlicensed band. In this paper, we investigate
the performance of D2D communications … unlicensed band, the coexistence of D2D and …

… and unlicensed spectrum interoperable D2D communication. … and unlicensed spectrum
interoperable D2D communication. We also put forward a network-assisted D2D communication …

… , D2D communications underlaying cellular networks over the unlicensed spectrum are
proposed, referred to as D2D-… and D2D users over the licensed spectrum as LTE and D2D users, …

… problem for D2D communications and design … D2D and cellular modes over the licensed
spectrum as D2D and LTE users, while those over the unlicensed spectrum are referred to D2D-…

… unlicensed spectrum. In this paper, we have proposed an access point (AP) controlled D2D
communications in the unlicensed spectrum to … use the unlicensed frequency spectrum of the …

… As LTE-U technology achieves better network performance, D2D communications in
unlicensed spectrum (D2D-U) technology [7] has attracted more and more attention for its great …

… the cellular network to the unlicensed spectrum to alleviate the spectrum scarcity issue. In
this paper, D2D communication is allowed to work in unlicensed spectrum (D2DU) as an …