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This is accomplished by using signal processing techniques, including coding and forward error correction, to transmit data using a specific transmission control protocol. Experimental results, using audio as the signal between anchors and the mobile device, demonstrate successful data transmission in realistic scenarios like a common noisy and reverberant room. Spread spectrum noise-like masked signals 4\u00b79 dB below background noise were sufficient to attain correct data reception at four metres distance between a loudspeaker anchor and a mobile device's microphone.<\/jats:p>","DOI":"10.1017\/s0373463315001095","type":"journal-article","created":{"date-parts":[[2016,2,16]],"date-time":"2016-02-16T07:46:18Z","timestamp":1455608778000},"page":"1024-1040","source":"Crossref","is-referenced-by-count":3,"title":["Indoor Global Localisation in Anchor-based Systems using Audio Signals"],"prefix":"10.1017","volume":"69","author":[{"given":"Jo\u00e3o","family":"Moutinho","sequence":"first","affiliation":[]},{"given":"Diamantino","family":"Freitas","sequence":"additional","affiliation":[]},{"given":"Rui","family":"Esteves Ara\u00fajo","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2016,2,16]]},"reference":[{"key":"S0373463315001095_ref28","doi-asserted-by":"crossref","unstructured":"Suzuki A. , Iyota T. , Choi Y. , Kubota Y. and Watanabe K. 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