A Hybrid Protocol for SWIPT in Cooperative Networks
| Autor: | Pradeep Sethu Lakshmi, Mangalathu Gopalakrishnan Jibukumar |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Advances in Electrical and Electronic Engineering, Vol 19, Iss 1, Pp 28-41 (2021) |
| Druh dokumentu: | article |
| ISSN: | 1336-1376 1804-3119 |
| DOI: | 10.15598/aeee.v19i1.3901 |
| Popis: | A promising technology for addressing network lifetime and energy bottlenecks in wireless networks is the Simultaneous Wireless Information and Power Transfer (SWIPT). In this paper, a Hybrid Time switching and Power splitting-based Relaying (HTPR) protocol for SWIPT in an Amplify-and-Forward (AF) network is proposed. The network consists of a source, relay, and destination in which the relay performs Energy Harvesting (EH) from the source signal and uses the harvested energy to transmit the signal to the destination. A direct link exists between the source and destination, and the signals from the source and relay are combined by the Maximum Ratio Combining (MRC) method at the destination. Closed-form expressions for outage probability are derived under delay-limited transmission to determine the achievable throughput at the destination in different transmission schemes. For a constant data rate, HTPR protocol with uniform and optimal EH ratios are considered for throughput maximization. To solve the optimization problem, the convex optimization technique Lagrange multiplier method and Karush-Kuhn-Tucker (KKT) conditions are used. Results show that the HTPR protocol has higher throughput than other SWIPT protocols at relatively high Signal-to-Noise Ratio (SNR). |
| Databáze: | Directory of Open Access Journals |
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