{"id":"https://openalex.org/W3083250771","doi":"https://doi.org/10.1145/3411170.3411238","title":"Adding voice messages to a low-cost long-range data messaging system","display_name":"Adding voice messages to a low-cost long-range data messaging system","publication_year":2020,"publication_date":"2020-09-04","ids":{"openalex":"https://openalex.org/W3083250771","doi":"https://doi.org/10.1145/3411170.3411238","mag":"3083250771"},"language":"en","primary_location":{"id":"doi:10.1145/3411170.3411238","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3411170.3411238","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 6th EAI International Conference on Smart Objects and Technologies for Social Good","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/10251/179930","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5047855994","display_name":"Kiyoshy Nakamura","orcid":"https://orcid.org/0000-0002-3399-2806"},"institutions":[{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Kiyoshy Nakamura","raw_affiliation_strings":["Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain"],"affiliations":[{"raw_affiliation_string":"Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043546527","display_name":"Pietro Manzoni","orcid":"https://orcid.org/0000-0003-3753-0403"},"institutions":[{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Pietro Manzoni","raw_affiliation_strings":["Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain"],"affiliations":[{"raw_affiliation_string":"Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070111950","display_name":"Marco Zennaro","orcid":"https://orcid.org/0000-0002-0578-0830"},"institutions":[{"id":"https://openalex.org/I12323705","display_name":"The Abdus Salam International Centre for Theoretical Physics (ICTP)","ror":"https://ror.org/009gyvm78","country_code":"IT","type":"facility","lineage":["https://openalex.org/I12323705","https://openalex.org/I1286959531","https://openalex.org/I1293226324","https://openalex.org/I2801247003"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Marco Zennaro","raw_affiliation_strings":["ICTP, Trieste, Italy"],"affiliations":[{"raw_affiliation_string":"ICTP, Trieste, Italy","institution_ids":["https://openalex.org/I12323705"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086152745","display_name":"Juan\u2010Carlos Cano","orcid":"https://orcid.org/0000-0002-0038-0539"},"institutions":[{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Juan-Carlos Cano","raw_affiliation_strings":["Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain"],"affiliations":[{"raw_affiliation_string":"Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066242048","display_name":"Carlos T. Calafate","orcid":"https://orcid.org/0000-0001-5729-3041"},"institutions":[{"id":"https://openalex.org/I60053951","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859","country_code":"ES","type":"education","lineage":["https://openalex.org/I60053951"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Carlos T. Calafate","raw_affiliation_strings":["Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain"],"affiliations":[{"raw_affiliation_string":"Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain","institution_ids":["https://openalex.org/I60053951"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5047855994"],"corresponding_institution_ids":["https://openalex.org/I60053951"],"apc_list":null,"apc_paid":null,"fwci":0.208,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.51696866,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"42","last_page":"47"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9739000201225281,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14147","display_name":"Innovative Approaches in Technology and Social Development","score":0.9739000201225281,"subfield":{"id":"https://openalex.org/subfields/1405","display_name":"Management of Technology and Innovation"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8005577325820923},{"id":"https://openalex.org/keywords/mqtt","display_name":"MQTT","score":0.7878258228302002},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.5035898089408875},{"id":"https://openalex.org/keywords/interface","display_name":"Interface (matter)","score":0.43517377972602844},{"id":"https://openalex.org/keywords/systems-architecture","display_name":"Systems architecture","score":0.41046249866485596},{"id":"https://openalex.org/keywords/architecture","display_name":"Architecture","score":0.410248339176178},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.37147435545921326},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.21009713411331177},{"id":"https://openalex.org/keywords/internet-of-things","display_name":"Internet of Things","score":0.2002182900905609},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.1299818456172943}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8005577325820923},{"id":"https://openalex.org/C132868160","wikidata":"https://www.wikidata.org/wiki/Q10322548","display_name":"MQTT","level":3,"score":0.7878258228302002},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.5035898089408875},{"id":"https://openalex.org/C113843644","wikidata":"https://www.wikidata.org/wiki/Q901882","display_name":"Interface (matter)","level":4,"score":0.43517377972602844},{"id":"https://openalex.org/C98025372","wikidata":"https://www.wikidata.org/wiki/Q477538","display_name":"Systems architecture","level":3,"score":0.41046249866485596},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.410248339176178},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.37147435545921326},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.21009713411331177},{"id":"https://openalex.org/C81860439","wikidata":"https://www.wikidata.org/wiki/Q251212","display_name":"Internet of Things","level":2,"score":0.2002182900905609},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.1299818456172943},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C129307140","wikidata":"https://www.wikidata.org/wiki/Q6795880","display_name":"Maximum bubble pressure method","level":3,"score":0.0},{"id":"https://openalex.org/C157915830","wikidata":"https://www.wikidata.org/wiki/Q2928001","display_name":"Bubble","level":2,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3411170.3411238","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3411170.3411238","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 6th EAI International Conference on Smart Objects and Technologies for Social Good","raw_type":"proceedings-article"},{"id":"pmh:oai:riunet.upv.es:10251/179930","is_oa":true,"landing_page_url":"http://hdl.handle.net/10251/179930","pdf_url":null,"source":{"id":"https://openalex.org/S4306400639","display_name":"RiuNet (Universitat Polit\u00e8cnica de Val\u00e8ncia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I60053951","host_organization_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","host_organization_lineage":["https://openalex.org/I60053951"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"pmh:oai:riunet.upv.es:10251/179930","is_oa":true,"landing_page_url":"http://hdl.handle.net/10251/179930","pdf_url":null,"source":{"id":"https://openalex.org/S4306400639","display_name":"RiuNet (Universitat Polit\u00e8cnica de Val\u00e8ncia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I60053951","host_organization_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","host_organization_lineage":["https://openalex.org/I60053951"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/publishedVersion"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6499999761581421}],"awards":[{"id":"https://openalex.org/G6951606763","display_name":null,"funder_award_id":"RTI2018-096384-B-I00","funder_id":"https://openalex.org/F4320315062","funder_display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades"},{"id":"https://openalex.org/G8181105605","display_name":null,"funder_award_id":"RTI2018","funder_id":"https://openalex.org/F4320315062","funder_display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades"}],"funders":[{"id":"https://openalex.org/F4320315062","display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1748946853","https://openalex.org/W2011914841","https://openalex.org/W2100347242","https://openalex.org/W2499923025","https://openalex.org/W2584737010","https://openalex.org/W2779724550","https://openalex.org/W2784117666","https://openalex.org/W2909053227","https://openalex.org/W2933934721","https://openalex.org/W2952388382","https://openalex.org/W2974387268","https://openalex.org/W2991680473","https://openalex.org/W3005849760","https://openalex.org/W3010561455","https://openalex.org/W3013254251","https://openalex.org/W6687981850","https://openalex.org/W6989243489"],"related_works":["https://openalex.org/W3188283133","https://openalex.org/W2967645615","https://openalex.org/W4296174532","https://openalex.org/W4379616043","https://openalex.org/W3096163214","https://openalex.org/W3201170624","https://openalex.org/W4295036342","https://openalex.org/W4285362218","https://openalex.org/W2985985298","https://openalex.org/W4220939727"],"abstract_inverted_index":{"Remote":[0],"locations":[1],"in":[2],"rural":[3],"areas":[4],"can":[5,118],"benefit":[6],"from":[7],"any":[8],"system":[9,76,94],"that":[10,77,80,108,117],"would":[11],"provide":[12,114],"some":[13,103],"form":[14],"of":[15,32,62],"connectivity.":[16],"In":[17,46],"a":[18,23,43,73,115,120,124],"previous":[19],"work":[20,48],"we":[21,49,71],"described":[22],"low":[24,40,125],"cost":[25],"architecture":[26],"that,":[27],"thanks":[28],"to":[29,57,85],"the":[30,33,55,93,98],"use":[31],"LoRa":[34],"technology,":[35],"allowed":[36],"long":[37],"links":[38],"using":[39,64],"energy":[41],"and":[42,101,113],"cheap":[44],"infrastructure.":[45],"this":[47],"extend":[50],"those":[51],"results":[52,110],"by":[53],"adding":[54],"possibility":[56],"include":[58],"generic":[59],"external":[60],"sources":[61],"data":[63],"an":[65],"MQTT":[66],"based":[67,88],"interface.":[68],"More":[69],"specifically,":[70],"describe":[72,91],"voice":[74,87],"messaging":[75],"allows":[78],"users":[79],"cannot":[81],"read":[82],"or":[83],"write":[84],"send":[86],"messages.":[89],"We":[90,106],"how":[92],"was":[95],"integrated":[96],"into":[97],"existing":[99],"platform":[100],"present":[102],"performance":[104],"results.":[105],"consider":[107],"these":[109],"are":[111],"promising":[112],"tool":[116],"offer":[119],"useful":[121],"service":[122],"at":[123],"cost.":[126]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
