{"id":71,"date":"2026-02-05T10:49:56","date_gmt":"2026-02-05T10:49:56","guid":{"rendered":"http:\/\/tdc4isac.org\/?p=71"},"modified":"2026-02-12T10:57:29","modified_gmt":"2026-02-12T10:57:29","slug":"software-defined-radio-prototyping-of-direct-detection-otfs-for-optical-wireless-links","status":"publish","type":"post","link":"http:\/\/tdc4isac.org\/index.php\/2026\/02\/05\/software-defined-radio-prototyping-of-direct-detection-otfs-for-optical-wireless-links\/","title":{"rendered":"Software Defined Radio Prototyping of Direct Detection OTFS for Optical Wireless Links"},"content":{"rendered":"\n<p>N. Tihomorskis, S. Migla, D. Cirjulina and A. Aboltins, &#8220;Software Defined Radio Prototyping of Direct Detection OTFS for Optical Wireless Links,&#8221; <em>2026 IEEE 23rd Consumer Communications &amp; Networking Conference (CCNC)<\/em>, Las Vegas, NV, USA, 2026, pp. 1-5, doi: 10.1109\/CCNC65079.2026.11366447.<\/p>\n\n\n\n<p><strong>Abstract:<\/strong><br>Optical wireless communication (OWC) is increasingly explored as a high-capacity, energy-efficient alternative for terrestrial and non-terrestrial links. To address challenges posed by mobility-induced Doppler shifts, orthogonal time frequency space (OTFS) modulation offers enhanced spectral efficiency and robustness, making it well-suited for dynamic OWC scenarios. This paper presents one of the first real-time software-defined radio (SDR)-based implementations of optical OTFS (O-OTFS) tailored for intensity-modulation direct detection (IM\/DD) optical systems. Two modulation schemes\u2014direct current-biased O-OTFS (DCO-OTFS) and asymmetrically clipped O-OTFS (ACO-OTFS)\u2014were designed in MATLAB Simulink and deployed on USRP B210 radios. The SDR platform enables flexible signal generation, over-the-air prototyping, and integrated optical testing. Experimental validation confirms the feasibility of both schemes, achieving bit error ratios (BERs) on the order of 10-4, suitable for integration with standard forward error correction (FEC) schemes, demonstrating the viability of SDR-based prototyping for next-generation OWC links.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N. Tihomorskis, S. Migla, D. Cirjulina and A. Aboltins, &#8220;Software Defined Radio Prototyping of Direct Detection OTFS for Optical Wireless Links,&#8221; 2026 IEEE 23rd Consumer Communications &amp; Networking Conference (CCNC), Las Vegas, NV, USA, 2026, pp. 1-5, doi: 10.1109\/CCNC65079.2026.11366447. Abstract:Optical wireless communication (OWC) is increasingly explored as a high-capacity, energy-efficient alternative for terrestrial and non-terrestrial [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,26,7,25],"tags":[37,38,33,36,34,32,35,31,30],"class_list":["post-71","post","type-post","status-publish","format-standard","hentry","category-article","category-conference","category-event","category-research","tag-matlab","tag-modems","tag-modulation","tag-ofdm","tag-photonics","tag-satellite-communication","tag-software-defined-radio","tag-visible-light-communication","tag-wireless-communication"],"_links":{"self":[{"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/posts\/71","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/comments?post=71"}],"version-history":[{"count":1,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/posts\/71\/revisions"}],"predecessor-version":[{"id":72,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/posts\/71\/revisions\/72"}],"wp:attachment":[{"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/media?parent=71"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/categories?post=71"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tdc4isac.org\/index.php\/wp-json\/wp\/v2\/tags?post=71"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}