Zhengquan Zhang

TL;DR: This article presents a large-dimensional and autonomous network architecture that integrates space, air, ground, and underwater networks to provide ubiquitous and unlimited wireless connectivity and identifies several promising technologies for the 6G ecosystem.

TL;DR: This paper presents a full-duplex device-to-device (D2D)-aided cooperative nonorthogonal multiple access (NOMA) scheme to improve the outage performance of the NOMA-weak user in a N OMA user pair, where the Noma- weak user is helped by the NomA-strong user with the capability of full- duplex D2D communications.

TL;DR: The results show that full-duplex two- way relaying can achieve higher rate than one-way relaying in the medium to high signal-to-noise ratio (SNR) region, at the cost of a certain loss in the outage performance.

TL;DR: Analytical and numerical results demonstrate that NOMA can significantly improve the mmWave multicasting, while the proposed cooperative N OMA mm Wave multicast scheme can further improve the NOM a mmWave multipoint multicasting.

TL;DR: The results show that the proposed two-timeslot two-way FD relaying scheme can achieve higher rate and better outage performance than the half-duplex one, when residual self-interference is below a certain level.