Zhaoyang Zhang

TL;DR: This paper proposes two tight SM capacity upper bounds and presents the solution of the optimal time split ratio for the maximum system throughput according to the proposed upper bound and conducts Monte-carlo simulations to reveal the throughput gain of the proposed SM-FD relaying protocol.

TL;DR: Simulation results demonstrate that the proposed FD cooperative NOMA system attains better performance than the half-duplex cooperative N OMA system in the moderate signal-to-noise ratio regime.

TL;DR: A channel estimation framework based on the parallel factor decomposition to unfold the resulting cascaded channel model is proposed and it is demonstrated that the sum rate using the estimated channels always reach that of perfect channels under various settings, thus, verifying the effectiveness and robustness of the proposed estimation algorithms.

TL;DR: This paper considers a cognitive radio system in fading wireless channels and proposes an opportunistic power control strategy for the cognitive users, which serves as an alternative way to protect the primary user's transmission and to realize spectrum sharing between thePrimary user and the Cognitive users.

TL;DR: This article reviews an emerging wireless information and power transfer (WIPT) technique with an emphasis on its performance enhancement employing multi-antenna techniques and investigates the WIPT tradeoffs based on two typical multi- Antenna techniques: the limited feedback multi-Antenna technique for short-distance transfer; and the large-scale multiple-input multiple-output (LS-MIMO) technique for long- distance transfer.