Interference-Free Access ZT DFT-s-OFDM-Based Symbiotic Backscatter Communication

Interference-Free Access ZT DFT-s-OFDM-Based Symbiotic Backscatter Communication | 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 Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed.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. 26 February 2026 V2 Latest version Share on Interference-Free Access ZT DFT-s-OFDM-Based Symbiotic Backscatter Communication Authors : Fikiri Salum Uledi 0009-0008-1723-2277 [email protected] , Yunusemre Yilmaz , Muhammad Bilal Janjua , Çagri Özgenç Etemoglu , and Hüseyin Arslan Authors Info & Affiliations https://doi.org/10.22541/au.176479270.04470689/v2 148 views 72 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This article presents a unique lightweight and interference-free backscatter communication (BC) scheme based on zero tail discrete Fourier transform spread OFDM (ZT DFT-s-OFDM) waveform signals. In the proposed approach, the zero-tail region of the waveform is exploited to accommodate backscatter transmissions using delay shift keying (DSK) modulation. A backscatter device (BD) equipped with modulator based on acoustic-wave delay circuits conveys information by introducing deterministic delay shifts within the uncorrupted zero-tail portion of the ZT DFT-s-OFDM symbol, thus ensuring complete time-domain separation between the primary and BD signals. This approach effectively eliminates directlink interference (DLI) while maintaining full compatibility with conventional receivers. To address the channel-estimation challenge, a low-complexity, non-coherent detector is developed, and its analytical performance is derived and validated through simulation. The simulations show consistency between the analytical and simulation results, demonstrating that the proposed design achieves a probability of missed detection (P MD) as low as 10 −3 at 30 dB, therefore, confirming its robustness and suitability for low-power BC applications. Supplementary Material File (contention_free_access_zt_dft_s_ofdm_based_symbiotic_backscatter_communication.pdf) Download 647.69 KB Information & Authors Information Version history V1 Version 1 03 December 2025 V2 Version 2 26 February 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords acoustic-wave modulation ambient iot backscatter communication delay shift keying direct-link interference symbiotic radio zero-tail dft-s-ofdm Authors Affiliations Fikiri Salum Uledi 0009-0008-1723-2277 [email protected] Department of Electrical and Electronics Engineering, Istanbul Medipol University View all articles by this author Yunusemre Yilmaz Department of Electrical and Electronics Engineering, Istanbul Medipol University View all articles by this author Muhammad Bilal Janjua R&D Department View all articles by this author Çagri Özgenç Etemoglu Türk Telekom R&D Department View all articles by this author Hüseyin Arslan Department of Electrical and Electronics Engineering, Istanbul Medipol University View all articles by this author Metrics & Citations Metrics Article Usage 148 views 72 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Fikiri Salum Uledi, Yunusemre Yilmaz, Muhammad Bilal Janjua, et al. Interference-Free Access ZT DFT-s-OFDM-Based Symbiotic Backscatter Communication. Authorea . 26 February 2026. DOI: https://doi.org/10.22541/au.176479270.04470689/v2 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 . 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