Show simple item record

dc.contributor.authorAydogdu, C.en_US
dc.contributor.authorKarasan, E.en_US
dc.date.accessioned2016-02-08T09:50:48Z
dc.date.available2016-02-08T09:50:48Z
dc.date.issued2010-12-17en_US
dc.identifier.issn1536-1233
dc.identifier.urihttp://hdl.handle.net/11693/21762
dc.description.abstractWe present an analytical model for the IEEE 802.11 DCF in multihop wireless networks that considers hidden terminals and accurately works for a large range of traffic loads. An energy model, which considers energy consumption due to collisions, retransmissions, exponential backoff and freezing mechanisms, and overhearing of nodes, and the proposed IEEE 802.11 DCF analytical model are used to analyze the energy consumption of various relaying strategies. The results show that the energy-efficient relaying strategy depends significantly on the traffic load. Under light traffic, energy spent during idle mode dominates, making any relaying strategy nearly optimal. Under moderate traffic, energy spent during idle and receive modes dominates and multihop transmissions become more advantageous where the optimal hop number varies with processing power consumed at relay nodes. Under very heavy traffic, where multihopping becomes unstable due to increased collisions, direct transmission becomes more energy efficient. The choice of relaying strategy is observed to affect energy efficiency more for large and homogeneous networks where it is beneficial to use multiple short hops each covering similar distances. The results indicate that a cross-layered relaying approach, which dynamically changes the relaying strategy, can substantially save energy as the network traffic load changes in time.en_US
dc.language.isoEnglishen_US
dc.source.titleIEEE Transactions on Mobile Computingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/TMC.2010.239en_US
dc.subjectAnalytical modelen_US
dc.subjectEnergy-efficient relayingen_US
dc.subjectHidden terminalen_US
dc.subjectIEEE 802.11 DCFen_US
dc.subjectMultihop wireless networksen_US
dc.titleAn analysis of IEEE 802.11 DCF and its application to energy-efficient relaying in multihop wireless networksen_US
dc.typeArticleen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage1361en_US
dc.citation.epage1373en_US
dc.citation.volumeNumber10en_US
dc.citation.issueNumber10en_US
dc.identifier.doi10.1109/TMC.2010.239en_US
dc.publisherIEEEen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record