In this letter, we investigate a reconfigurable intelligent surfaces (RIS)-aided device to (D2D) communication system over Rician fading channels with imperfect hardware including both impairment at the transceivers and phase noise RISs. This letter has optimized shift by genetic algorithm (GA) method maximize achievable rate for continuous shifts (CPSs) discrete (DPSs). We also consider two sp...

To mitigate the interference caused by frequency reuse between inter-layer and intra-layer users for Non-Orthogonal Multiple Access (NOMA) based device-to-device (D2D) communication underlaying cellular systems, this paper proposes a joint optimization strategy that combines user grouping resource allocation. Specifically, problem is formulated to maximize sum rate while ensuring minimum of use...

Device-to-Device (D2D) communications hold the promise of enabling substantial traffic offloads from wireless infrastructure while increasing area spectral efficiency. Doing so requires exploiting available spatio-temporal traffic locality. This paper considers the design of scheduling algorithms for dynamic D2D networks where links are set up to mediate file transfers among close by users, but...