In this paper, we investigate the downlink orthogonal frequency division multiplexing
(OFDM) transmission system assisted by reconfigurable intelligent surfaces (RISs) …

In this paper, we investigate a reconfigurable intelligent surface (RIS) assisted downlink
orthogonal frequency division multiplexing (OFDM) transmission system. Taking into …

In this paper, we investigate the reconfigurable intelligent surface (RIS)-enabled multiple-
input-single-output orthogonal frequency division multiplexing (MISO-OFDM) system under …

In this letter, we aim to maximize the downlink sum-rate for multi-antenna orthogonal
frequency division multiple access (OFDMA) systems with multiple reconfigurable intelligent …

Orthogonal frequency division multiplexing (OFDM) systems have been widely applied in
practice since OFDM has diverse outstanding advantages. However, their performance …

In this paper, we study the resource allocation problem for an intelligent reflecting surface
(IRS)-assisted OFDM system. The system sum rate maximization framework is formulated by …

Reconfigurable intelligent surface (RIS) has become a promising solution to improve the
performance of future wireless systems with low energy consumptions. Concerning a RIS …

Reconfigurable intelligent surfaces (RISs) have recently emerged as an innovative
technology for improving the energy and/or spectrum efficiency of future wireless …

This letter investigates the intelligent reflecting surface (IRS)-aided multiple-input single-
output wireless transmission system. Particularly, the optimization of the passive phase shift …

Reconfigurable intelligent surface (RIS) is a low-cost device envisioned to achieve
substantial promotion in both spectrum and energy efficiency in the future wireless …