Intelligent reflecting surface (IRS) is a promising technology to enhance the coverage and performance of wireless networks. We consider application IRS non-orthogonal multiple access (NOMA), where base station transmits superposed signals users by virtue an IRS. The IRS-assisted NOMA networks with imperfect successive interference cancellation (ipSIC) perfect (pSIC) investigated invoking 1-bit...

Intelligent reflecting surfaces (IRSs) are a promising technology for enhancing coverage and spectral efficiency, both in the sub-6 GHz millimeter wave (mmWave) bands. Existing approaches to leverage benefits of IRS involve use resource-intensive channel estimation step followed by computationally expensive algorithm optimize reflection coefficients at IRS. In this work, focusing on band commun...

Orthogonal frequency division multiplexing (OFDM) combined with time division multiplexing (TDM), called OFDM/TDM, can overcome the high peak-to-average-power ratio (PAPR) problem of the conventional OFDM. Its bit error rate (BER) performance in a frequency-selective fading channel is improved by adoption of frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion...

Background: In the present study, we aimed to clarify impact of Assisted swim (A-swim; towing from propulsion direction) on front crawl performance at maximum and sub-maximum effort levels. Methods: Fourteen male collegiate swimmers (age, 21.0 ± 2.0 years; height, 1.73 0.05 m; weight, 67.1 7.1 kg) participated. Participants swam 25-m maximal (Max) submaximal intensity (Submax (80% max stroke ra...

In the recent era, unmanned aerial vehicle (UAV) plays an important role in numerous application fields related to wireless communication system. Due its precise control, efficient deployment, and affordable cost, UAV-assisted attracts significant attention all sectors including defense sector, agriculture security purpose, so on. Though UAVassisted relaying has enormous advantages but there ar...

We present an OpenGL-assisted visibility culling algorithm to improve the rendering performance of large polygonal models. Using a combination of OpenGL-assisted frustum culling, hierarchical model-space partitioning, and OpenGL based occlusion culling, we achieve a significant better performance on general polygonal models than previous approaches. In contrast to these approaches, we only expl...