Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

Abstract

Wireless Power Transfer (WPT) is an innovative technology employed for enhancing the energy sustainability of wireless devices with a limited life span. The idea of integrating WPT in wireless communication leads to the idea of Simultaneous Wireless Information and Power Transfer (SWIPT) that transfers information and power to wireless devices simultaneously, thereby resulting in a drastic increase in spectral efficiency of the network. SWIPT aided Cooperative Relaying (CoR) has emerged as a new trend for Fifth Generation (5G) and Beyond 5G (B5G) systems owing to the rapidly increasing challenges faced by these networks. Cooperative relaying combined with SWIPT can be helpful in overcoming the rising demands of next generation wireless networks by providing an enhanced date rate, low latency, shorter coverage, wide spread connectivity of massive number of devices along with energy-efficiency. This article provides a comprehensive review of SWIPT technology that enables the use of CoR networks for 5G and B5G mobile networks including the significance, technologies, and protocols which can be applied. This article also examines the deployment of cooperative SWIPT involving a single relay, multiple relays and optimal relay selection, multi antenna systems and optimal beamforming .SWIPT under the influence of Hardware Impairments (HI), imperfect Channel State Information (CSI), non-linear energy harvesting models, Intelligent Reconfigurable Surface (IRS), massive MIMO, massive access for the Internet of Things (IoT) has been discussed in detail. Meanwhile, this study discusses key challenges being faced in the implementation of SWIPT for future wireless networks that need to be addressed efficiently.

Rate-Energy Tradeoff Analysis in RIS-SWIPT Systems With Hardware Impairments and Phase-Based Amplitude Response

“…The R-E tradeoff was determined by the appropriate resource management, i.e., information and energy allocation, and was essential and crucial for characterizing and understanding the fundamental performance of RIS-aided SWIPT systems [25]. In the closely related prior research, the optimization of the transmit beamforming as well as reflective beamforming was suggested to minimize the transmit power or to maximize the sum rate/or sum-power of the information/or energy receiver under certain harvested energy/or information rate constraint at the energy/or information receiver [26].…”

Semi-Passive Reconfigurable Intelligent Surfaces Enabled Communications: A Comprehensive Survey

“…WPT has attracted lots of attention because of its mobility, convenience, and reliability. This innovative technology has increased the resilience and expanded the battery life of wireless Internet-of-Things (IoT) devices [67]. Their integration into wireless communications has led to the concept of simultaneous wireless information and power transfer (SWIPT), which, in turn, improves the SE of the network.…”

A Hybrid Energy Harvesting Protocol for Cooperative NOMA: Error Performance Approach

“…Hence, the cooperative-NOMA (CNOMA) has been one of the most investigated topics, recently due to its ability to increase spectral efficiency, user fairness and expand network coverage [2]. On the other hand, to increase the energy efficiency and recharge the battery-limited devices, the energy harvesting (EH) in CNOMA has also received significant attention [3]. In literature, there are two major protocols in EH: power splitting (PS) and time switching (TS).…”