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Joint optimal power splitting and relay selection strategy under SWIPT

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Abstract

In this paper, an effective relay node (RN) selection scheme based on optimal power splitting ratio (PSR) in dual hop decode and forward (DF) cooperative relay network (CRN) under the SWIPT framework is proposed. A single antenna multiple intermediate energy harvesting (EH) RNs network between source and destination is considered, where multiple EH RNs harvest energy from radio frequency (RF) signal transmitted by the source node (SN). Each EH DF RN uses a power splitting (PS) protocol to represent the rate-energy (RE) exchange between the energy used to decode the RN information signal and the rest of the energy collected to transmit the decoded signal to the destination node (DN). In this paper, we have computed the theoretical as well as the simulated results in terms of energy harvesting at the RNs, optimization of end-to-end data rate with an efficient RN selection scheme based on optimized PSR and compared with conventional PSR relay selection scheme. Furthermore, based on the proposed scheme we have derived the expression of outage probability and showed the performance in terms of energy conversion efficiency and signal to noise ratio (SNR) at different threshold rata rates. We have shown that our proposed scheme performs better than conventional equal PSR scheme.

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Authors and Affiliations

  1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Saleemullah Memon, Junaid Ahmed Uqaili & Kamlesh Kumar Soothar

  2. Department of Electronic Engineering, MUET, SZAB Campus, Khairpur, 66020, Pakistan

    Saleemullah Memon

  3. Faculty of Computer Sciences, ILMA University, Karachi, 75190, Pakistan

    Saleemullah Memon

  4. Department of Telecommunication Engineering, QUEST, Nawabshah, Pakistan

    Kamran Ali Memon

  5. State Key Laboratory of Information Photonics and Optical Communications, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Kamran Ali Memon

  6. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Rabnawaz Sarmad Uqaili

  7. Department of Electrical-Electronics Engineering, Trakya University, 22030, Edirne, Turkey

    Korhan Cengiz

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  1. Saleemullah Memon
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  2. Kamran Ali Memon
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  3. Junaid Ahmed Uqaili
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  4. Kamlesh Kumar Soothar
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  5. Rabnawaz Sarmad Uqaili
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  6. Korhan Cengiz
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Correspondence to Kamran Ali Memon.

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Memon, S., Memon, K.A., Uqaili, J.A. et al. Joint optimal power splitting and relay selection strategy under SWIPT. Wireless Netw 27, 5385–5395 (2021). https://doi.org/10.1007/s11276-021-02791-z

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