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Minimum-latency broadcast (MLB) studies how to devise a broadcast schedule, which can achieve minimum broadcast latency with no signal interference. In multichannel duty-cycled WSNs, nodes can exploit multiple channels to communicate and periodically fall asleep after working for some time. Nevertheless, most solutions to the MLB problem either focus on nonsleeping scenarios or only exploit one single channel. Therefore, we investigate the MLB problem in multichannel duty-cycled WSNs in this paper and call this problem as MLBCD problem. We prove that MLBCD problem is NP-hard. We propose a new concept of active interference graph (AIG). Based on AIG, we present one novel approximation broadcast algorithm called NAB to solve the MLBCD problem. We prove that our proposed NAB algorithm achieves provable performance guarantee. The results of our extensive evaluations show that NAB algorithm can significantly improve the broadcast latency. <\/jats:p>","DOI":"10.1155\/2015\/913451","type":"journal-article","created":{"date-parts":[[2015,8,13]],"date-time":"2015-08-13T21:01:50Z","timestamp":1439499710000},"page":"913451","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["On Minimum-Latency Broadcast in Multichannel Duty-Cycled Wireless Sensor Networks"],"prefix":"10.1177","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1473-6230","authenticated-orcid":false,"given":"Xianlong","family":"Jiao","sequence":"first","affiliation":[{"name":"College of Information System and Management, National University of Defense and Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weidong","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Information System and Management, National University of Defense and Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Ge","sequence":"additional","affiliation":[{"name":"College of Information System and Management, National University of Defense and Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuli","family":"Chen","sequence":"additional","affiliation":[{"name":"Chongqing Guanyinqiao Elementary School, Chongqing 400020, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2015,8,13]]},"reference":[{"key":"B1-2015-913451","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-03417-6_46"},{"first-page":"481","volume-title":"Proceedings of the 22nd Annual Joint Conference on the IEEE Computer and Communications Societies (INFOCOM \u203203)","author":"Zheng R.","key":"B2-2015-913451"},{"first-page":"129","volume-title":"Proceedings of the 10th Annual International Conference on Mobile Computing and Networking (MobiCom \u203204)","author":"Gui C.","key":"B3-2015-913451"},{"first-page":"109","volume-title":"Proceedings of the 5th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MoBiHoc \u203204)","author":"Dousse O.","key":"B4-2015-913451"},{"key":"B5-2015-913451","doi-asserted-by":"publisher","DOI":"10.1145\/1267060.1267063"},{"first-page":"222","volume-title":"Proceedings of the 4th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MOBIHOC \u203203)","author":"Gandhi R.","key":"B6-2015-913451"},{"key":"B7-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/infcom.2007.91"},{"key":"B8-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/infcom.2009.5062211"},{"key":"B9-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/infcom.2007.92"},{"key":"B10-2015-913451","doi-asserted-by":"publisher","DOI":"10.1145\/1374618.1374663"},{"key":"B11-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/TMC.2008.56"},{"key":"B12-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/tnet.2013.2257839"},{"key":"B13-2015-913451","doi-asserted-by":"publisher","DOI":"10.1109\/icnp.2008.4697047"},{"first-page":"110","volume-title":"Proceedings of the 12th Annual International Conference on Mobile Computing and Networking, (MOBICOM \u203206)","author":"Goldenberg D. 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