Enhancing Multiple Access for Backscatter Devices in OFDM-Based Symbiotic Radio

Enhancing Multiple Access for Backscatter Devices in OFDM-Based Symbiotic Radio | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 3 March 2026 V1 Latest version Share on Enhancing Multiple Access for Backscatter Devices in OFDM-Based Symbiotic Radio Authors : Fikiri Salum Uledi 0009-0008-1723-2277 [email protected] , Muhammad Bilal Janjua , Cagri Etemoglu Özgenç , and Hüseyin Arslan Authors Info & Affiliations https://doi.org/10.22541/au.177255527.78013190/v1 67 views 26 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This paper proposes multiple access schemes for backscatter devices (BDs) in orthogonal frequency division multiplexing (OFDM)-based symbiotic radio systems. Specifically, single-subcarrier (SSC) and multiple-subcarrier (MSC) schemes are developed to achieve interference-free coexistence between primary user transmission and multiple-BDs. Each one of them is integrated with a specifically designed OFDM symbol structure. To address the challenges of channel estimation in symbiotic radio systems, non-coherent detection techniques are employed at the receiver. The proposed schemes' performance is analytically and numerically evaluated in terms of error-rates and sum-rates. Additionally, the effect of carrier-frequency offset (CFO) on the performance of the proposed schemes is analyzed. The SSC scheme achieves higher spectral efficiency compared to MSC as one information bit occupies only one subcarrier instead of two subcarriers, which are needed in MSC. However, by utilizing more subcarriers, the MSC scheme achieves lowererror rates compared to SSC. Supplementary Material File (multibdsgreencom.pdf) Download 1.36 MB Information & Authors Information Version history V1 Version 1 03 March 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords backscatter communication multi-bd access null subcarrier ofdm symbiotic radio Authors Affiliations Fikiri Salum Uledi 0009-0008-1723-2277 [email protected] View all articles by this author Muhammad Bilal Janjua Department of Electrical and Elec-tronics Engineering, Istanbul Medipol University View all articles by this author Cagri Etemoglu Özgenç Department of Electrical and Elec-tronics Engineering, Istanbul Medipol University View all articles by this author Hüseyin Arslan Department of Electrical and Elec-tronics Engineering, Istanbul Medipol University View all articles by this author Metrics & Citations Metrics Article Usage 67 views 26 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Fikiri Salum Uledi, Muhammad Bilal Janjua, Cagri Etemoglu Özgenç, et al. Enhancing Multiple Access for Backscatter Devices in OFDM-Based Symbiotic Radio. Authorea . 03 March 2026. DOI: https://doi.org/10.22541/au.177255527.78013190/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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