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Conference Paper: Power control approach for IEEE 802.11 ad hoc networks

TitlePower control approach for IEEE 802.11 ad hoc networks
Authors
KeywordsPower control
Ad hoc networks
IEEE 802.11
Medium access control
Issue Date2003
PublisherIEEE.
Citation
The 14th IEEE International Symposium Personal, Indoor and Mobile Radio Communications, Beijing, China, 7-10 September 2003, v. 2, p. 1761-1765 How to Cite?
AbstractIn packet radio networks, especially an ad hoc wireless network using IEEE 802.11 as the MAC (media access control) protocol, power control is a crucial issue. By using a judicious power control mechanism, co-channel interference can be significantly reduced, thus improving the channel spatial reuse and network capacity. However, efficient power control in an IEEE 802.11 system is very challenging because according to the standard, fixed power is used for transmitting packets, and there is only one channel. In this paper, we propose an enhancement to the standard IEEE 802.11 MAC protocol by improving the handshaking mechanisms and adding one separate power control channel. With the control channel, the receiver notifies its neighbors its noise tolerance. Thus, the neighbors can adjust their transmission power levels to avoid packet collisions at the receiver. Through extensive simulations using NS-2, our proposed power control mechanism is found to be effective in that network throughput can be increased by about 10%, and the battery utilization can also be improved at the same time.
Persistent Identifierhttp://hdl.handle.net/10722/46473

 

DC FieldValueLanguage
dc.contributor.authorLin, Xen_HK
dc.contributor.authorKwok, YKen_HK
dc.contributor.authorLau, KNen_HK
dc.date.accessioned2007-10-30T06:50:37Z-
dc.date.available2007-10-30T06:50:37Z-
dc.date.issued2003en_HK
dc.identifier.citationThe 14th IEEE International Symposium Personal, Indoor and Mobile Radio Communications, Beijing, China, 7-10 September 2003, v. 2, p. 1761-1765en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46473-
dc.description.abstractIn packet radio networks, especially an ad hoc wireless network using IEEE 802.11 as the MAC (media access control) protocol, power control is a crucial issue. By using a judicious power control mechanism, co-channel interference can be significantly reduced, thus improving the channel spatial reuse and network capacity. However, efficient power control in an IEEE 802.11 system is very challenging because according to the standard, fixed power is used for transmitting packets, and there is only one channel. In this paper, we propose an enhancement to the standard IEEE 802.11 MAC protocol by improving the handshaking mechanisms and adding one separate power control channel. With the control channel, the receiver notifies its neighbors its noise tolerance. Thus, the neighbors can adjust their transmission power levels to avoid packet collisions at the receiver. Through extensive simulations using NS-2, our proposed power control mechanism is found to be effective in that network throughput can be increased by about 10%, and the battery utilization can also be improved at the same time.en_HK
dc.format.extent390947 bytes-
dc.format.extent4989 bytes-
dc.format.extent10776 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE International Symposium Personal, Indoor and Mobile Radio Communications-
dc.rights©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPower controlen_HK
dc.subjectAd hoc networksen_HK
dc.subjectIEEE 802.11en_HK
dc.subjectMedium access controlen_HK
dc.titlePower control approach for IEEE 802.11 ad hoc networksen_HK
dc.typeConference_Paperen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/PIMRC.2003.1260417en_HK
dc.identifier.hkuros91618-

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