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Dynamic voltage frequency scaling (DVFS) and dynamic power management (DPM) have been proposed to enable energy-efficient scheduling for real-time and embedded systems. However, most power-aware scheduling algorithms are designed to deal with only those cases in which the task execution time is determined solely by the clock frequency of the processor. In this study, we propose an extended task execution model that is appropriate for the sensor nodes and an algorithm that determines the optimal clock frequency for a node's processor. We analyze the extended model and verify that our algorithm calculates the clock frequency that optimizes energy savings while satisfying the timing constraints. <\/jats:p>","DOI":"10.1155\/2014\/617346","type":"journal-article","created":{"date-parts":[[2014,6,17]],"date-time":"2014-06-17T01:48:21Z","timestamp":1402969701000},"page":"617346","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Optimization of Processor Clock Frequency for Sensor Network Nodes Based on Energy Use and Timing Constraints"],"prefix":"10.1177","volume":"10","author":[{"given":"Youngmin","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Computer Science and Engineering, Chung-Ang University, Dongjak-gu, Seoul 156-756, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4931-4751","authenticated-orcid":false,"given":"Heeju","family":"Joo","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Engineering, Chung-Ang University, Dongjak-gu, Seoul 156-756, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chan-Gun","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Engineering, Chung-Ang University, Dongjak-gu, Seoul 156-756, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2014,6,16]]},"reference":[{"key":"B1-2014-617346","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2002.1024422"},{"first-page":"409","volume-title":"Proceedings of the 24th IEEE International Performance, Computing, and Communications Conference (IPCCC \u203205)","author":"Poornachandran R.","key":"B2-2014-617346"},{"first-page":"205","volume-title":"Proceedings of the 3rd International Symposium on Information Processing in Sensor Networks (IPSN \u203204)","author":"Hohlt B.","key":"B3-2014-617346"},{"volume-title":"Proceedings of the USENIX Symposium on Operating Systems Design and Implementation","author":"Weiser M.","key":"B4-2014-617346"},{"volume-title":"Proceedings of the Design, Automation and Test in Europe (DATE \u203206)","author":"Cheng H.","key":"B8-2014-617346"},{"key":"B9-2014-617346","doi-asserted-by":"publisher","DOI":"10.1109\/RTAS.2008.21"},{"volume-title":"Proceedings of the IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS \u203203)","author":"Saewong S.","key":"B5-2014-617346"},{"key":"B6-2014-617346","doi-asserted-by":"publisher","DOI":"10.1109\/TC.2004.1275298"},{"key":"B7-2014-617346","doi-asserted-by":"publisher","DOI":"10.1109\/TII.2006.890494"},{"key":"B10-2014-617346","doi-asserted-by":"publisher","DOI":"10.1109\/92.845896"},{"key":"B11-2014-617346","doi-asserted-by":"publisher","DOI":"10.1145\/1450058.1450073"},{"first-page":"449","volume-title":"Proceedings of the IEEE\/ACM International Conference on Computer-Aided Design (ICCAD \u203209)","author":"Zhao B.","key":"B12-2014-617346"},{"volume-title":"Proceedings of the Korea Conference on Software Engineering (KCSE \u203213)","author":"Kim Y.","key":"B13-2014-617346"}],"container-title":["International Journal of Distributed Sensor Networks"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1155\/2014\/617346","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/full-xml\/10.1155\/2014\/617346","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1155\/2014\/617346","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,5,16]],"date-time":"2021-05-16T20:45:45Z","timestamp":1621197945000},"score":1,"resource":{"primary":{"URL":"http:\/\/journals.sagepub.com\/doi\/10.1155\/2014\/617346"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,6,1]]},"references-count":13,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2014,6,1]]}},"alternative-id":["10.1155\/2014\/617346"],"URL":"https:\/\/doi.org\/10.1155\/2014\/617346","relation":{},"ISSN":["1550-1477","1550-1477"],"issn-type":[{"type":"print","value":"1550-1477"},{"type":"electronic","value":"1550-1477"}],"subject":[],"published":{"date-parts":[[2014,6,1]]}}}