Dual Wi-Fi: Dual Channel Wi-Fi for Congested WLANs with Asymmetric Traffic Loads

dc.contributor.advisorKnightly, Edward W.
dc.contributor.committeeMemberSabharwal, Ashutosh
dc.contributor.committeeMemberZhong, Lin
dc.creatorFlores Miranda, Adriana
dc.date.accessioned2014-12-04T20:21:33Z
dc.date.available2014-12-04T20:21:33Z
dc.date.created2013-12
dc.date.issued2013-10-08
dc.date.submittedDecember 2013
dc.date.updated2014-12-04T20:21:33Z
dc.description.abstractIn many WLANs scenarios, the load transmitted from the AP to the clients (Downlink), far outweighs traffic demand from the clients to the AP (Uplink), thereby yielding traffic asymmetry. Moreover, when many clients associate with a single AP, the clients can cause a disproportional amount of medium contention compared to the AP, producing contention asymmetry. We present Dual Wi-Fi, a MAC architecture and protocol that minimizes MAC overhead by matching spectrum resources to traffic asymmetry. Dual Wi-Fi separates uplink and downlink data traffic into two variable-width independent channels, each allocated in accordance to the network's traffic demand. Our experimental and simulation results demonstrate that Dual Wi-Fi matches downlink vs. uplink throughput ratio to demand ratio within 1\% under any client density and traffic load. Through this matching capability, Dual Wi-Fi offers unbounded downlink gains as congestion increases, minimizing and in some cases eliminating retransmissions and contention time.
dc.format.mimetypeapplication/pdf
dc.identifier.citationFlores Miranda, Adriana. "Dual Wi-Fi: Dual Channel Wi-Fi for Congested WLANs with Asymmetric Traffic Loads." (2013) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/78579">https://hdl.handle.net/1911/78579</a>.
dc.identifier.urihttps://hdl.handle.net/1911/78579
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectTraffic Asymmetry
dc.subjectIEEE 802.11
dc.subjectWireless local area networks
dc.subjectHotspot
dc.subjectMedium access control (MAC)
dc.subjectMulti-channel random access
dc.subjectSpectrum efficiency
dc.titleDual Wi-Fi: Dual Channel Wi-Fi for Congested WLANs with Asymmetric Traffic Loads
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical and Computer Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
AdrianaFlores_MSthesis_Signed.pdf
Size:
582.33 KB
Format:
Adobe Portable Document Format
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
947 B
Format:
Plain Text
Description: