To solve the problems of complex energy supply and poor communication effect cell-edge users, combining advantages simultaneous wireless information power transfer (SWIPT) collaborative non-orthogonal multiple access (CNOMA), two novel protocols are proposed. By employing PS TS strategies in SWIPT, respectively, named: SWIPT-CNOMA-PS SWIPT-CNOMA-TS. Based on protocols, a new method for selectin...

A multiple antenna base station (BS) with an intelligent reflecting surface (IRS) platform, and several single users are considered in the downlink mode. Simultaneous wireless information power transfer (SWIPT) is utilized by BS via transmit beamforming to convey all devices. Each device applies splitting (PS) dedicate separate parts of received decoding energy harvesting. We formulate a total ...

In this paper, we study secure energy efficiency (SEE) for simultaneous wireless information and power transfer (SWIPT) in a distributed antenna system (DAS) based IoT network. We consider which both the legitimate user (Bob) eavesdropper (Eve) rely on harvested from received radio signal. Firstly, with perfect channel state (CSI), formulate maximization of SEE as constrained optimization probl...

The study of relays with the scope of energy-harvesting (EH) looks interesting as a means of enabling sustainable, wireless communication without the need to recharge or replace the battery driving the relays. However, reliability of such communication systems becomes an important design challenge when such relays scavenge energy from the information bearing RF signals received from the source,...

Code index modulated multi-carrier M-ary differential chaos shift keying (CIM-MC-M-DCSK) system not only inherits low-power and low-complexity advantages of the conventional DCSK system, but also significantly increases transmission rate. This feature is particular importance to Internet Things (IoT) with trillions low-cost devices. In particular, for e-health IoT applications, an efficient sch...

We study radio frequency (RF) wireless power transfer (WPT) using a digital transmitter for applications where alternative analog transmit circuits are impractical. An important parameter assessing the viability of an RF WPT system is its end-to-end efficiency. In this regard, we present prototype test bed comprising software-defined (SDR) and energy-harvesting receiver with low resistive load;...

We present the design for an ultra-low latency and low energy Internet of Things (IoT) network inspired by emerging cooperative Non-Orthogonal Multiple Access (NOMA) wireless communication technique. The IoT model consists a source at center network, near device inside far outside network. is in proximity device, however. deploy as relay to assist device. assumed be node. As result, cannot forw...

Powering mobiles using microwave power transfer (PT) avoids the inconvenience of battery recharging by cables and ensures uninterrupted mobile operation. The integration of PT and information transfer (IT) allows wireless PT to be realized by building on the existing infrastructure for IT and also leads to compact mobile designs. As a result, simultaneous wireless information and power transfer...