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dc.contributor.authorTalak, Rajat
dc.contributor.authorKaraman, Sertac
dc.contributor.authorModiano, Eytan
dc.date.accessioned2021-11-02T17:13:58Z
dc.date.available2021-11-02T17:13:58Z
dc.date.issued2018-06-26
dc.identifier.urihttps://hdl.handle.net/1721.1/137119
dc.description.abstract© 2018 Association for Computing Machinery. Age of information (AoI) is a recently proposed metric for measuring information freshness. AoI measures the time that elapsed since the last received update was generated. We consider the problem of minimizing average and peak AoI in wireless networks under general interference constraints. When fresh information is always available for transmission, we show that a stationary scheduling policy is peak age optimal. We also prove that this policy achieves average age that is within a factor of two of the optimal average age. In the case where fresh information is not always available, and packet/information generation rate has to be controlled along with scheduling links for transmission, we prove an important separation principle: the optimal scheduling policy can be designed assuming fresh information, and independently, the packet generation rate control can be done by ignoring interference. Peak and average AoI for discrete time G/Ber/1 queue is analyzed for the first time, which may be of independent interest.en_US
dc.language.isoen
dc.publisherACMen_US
dc.relation.isversionof10.1145/3209582.3209589en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titleOptimizing Information Freshness in Wireless Networks under General Interference Constraintsen_US
dc.typeArticleen_US
dc.identifier.citationTalak, Rajat, Karaman, Sertac and Modiano, Eytan. 2018. "Optimizing Information Freshness in Wireless Networks under General Interference Constraints."
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Information and Decision Systems
dc.eprint.versionOriginal manuscripten_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dc.date.updated2019-10-29T13:25:10Z
dspace.date.submission2019-10-29T13:25:13Z
mit.licenseOPEN_ACCESS_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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