802.11b Operating in a Mobile Channel: Performance and Challenges

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameCommunications Design Conferenceen_US
dc.citation.locationSan Jose, CAen_US
dc.contributor.authorSteger, Christopheren_US
dc.contributor.authorRadosavljevic, Predragen_US
dc.contributor.authorFrantz, Patricken_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T01:06:58Zen_US
dc.date.available2007-10-31T01:06:58Zen_US
dc.date.issued2003-09-20en_US
dc.date.modified2003-09-20en_US
dc.date.note2003-07-11en_US
dc.date.submitted2003-09-20en_US
dc.descriptionConference paperen_US
dc.description.abstractIn the past, the worlds of wireless voice and data transmission have been largely disjoint. Voice traffic has been carried over circuit-switched cellular links, and data has been largely restricted to packet-switched wireless LANs. Now, as consumers demand higher bandwidth connections without sacrificing mobility and traffic transitions from primarily voice to data, service providers must produce what is essentially a ubiquitous wireless LAN. To this end, we have studied the effects of a mobile channel on current generation 802.11 A, B, and G wireless LAN cards to see how readily they can be applied to more challenging environments. Not surprisingly, current WLAN technology suffers from significantly degraded performance when subjected to the rigors of a mobile channel. We created emulated bi-directional peer-to-peer links in which we were able to manipulate individual channel parameters. By isolating individual propagation effects and testing several different implementations of the standards, we have discovered which channel parameters have the most significant impact on performance. For instance, the large delay spreads typical of an outdoor channel seem to produce the most deleterious effect on throughput in 802.11b. We use our observations to evaluate the viability of direct-sequence spread-spectrum systems (similar to 802.11b) versus that of OFDM systems (like 802.11a and 802.11g). Then we offer suggestions for how future systems should be adapted in order to manage these effects, and we project the ultimate limitations and possibilities for subsequent 802.11-like systems.en_US
dc.identifier.citationC. Steger, P. Radosavljevic and P. Frantz, "802.11b Operating in a Mobile Channel: Performance and Challenges," 2003.en_US
dc.identifier.urihttps://hdl.handle.net/1911/20391en_US
dc.language.isoengen_US
dc.subject802.11ben_US
dc.subjectWirelessen_US
dc.subjectWLANen_US
dc.subjectMobileen_US
dc.subject.keyword802.11ben_US
dc.subject.keywordWirelessen_US
dc.subject.keywordWLANen_US
dc.subject.keywordMobileen_US
dc.title802.11b Operating in a Mobile Channel: Performance and Challengesen_US
dc.typeConference paperen_US
dc.type.dcmiTexten_US
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