In this thesis, we study the downlink multiuser scheduling and power allocation problem for systems with simultaneous wireless information and power transfer (SWIPT). In the first part of the thesis, we focus on multiuser scheduling. We design optimal scheduling algorithms that maximize the long-term average system throughput under different fairness requirements, such as proportional fairness ...

This paper presents an investigation of the transmitting power consumption a base station (BS) in simultaneous wireless information and transfer (SWIPT) system enhanced by reconfigurable intelligent surface (RIS). The aim is to optimize total when sending signals energy from BS ground sensors. To this end, optimized satisfying sensor’s minimum signal-to-interference-plus-noise ratio (SINR), pha...

The performance of simultaneous wireless information and power transfer (SWIPT) in downlink (DL) cell-free massive multiple-input multiple-output (MIMO) is investigated. Tight approximations to the DL harvested energy DL/uplink (UL) achievable rates are derived for two practical channel state (CSI) cases by using a non-linear harvesting model time-switching power-splitting protocols. Max-min fa...

A promising technology for addressing network lifetime and energy bottlenecks in wireless networks is the Simultaneous Wireless Information Power Transfer (SWIPT). In this paper, a Hybrid Time switching splitting-based Relaying (HTPR) protocol SWIPT an Amplify-and-Forward (AF) proposed. The consists of source, relay, destination which relay performs Energy Harvesting (EH) from source signal use...

In the Industrial Internet of Things (IIoT), non-orthogonal multiple access (NOMA) has emerged as a viable method due to its superior efficiency. this paper, new power allocation technique for NOMA-enabled IIoT devices is presented with trade-offs between increasing energy efficiency and decreasing consumption. We present joint optimization transmission rate harvesting in simultaneous wireless ...

This paper proposes a virtual harvest-transmit model and a harvest-transmit-store model for amplify-andforward full-duplex relay (FDR) networks with power splittingbased simultaneous wireless information and power transfer. The relay node employs a battery group consisting of two rechargeable batteries. By switching periodically between two batteries for charging and discharging in two consecut...