Channel-aware throughput fairness in multi-cell wireless LANs

Samarth H. Shah, Klara Nahrstedt

Research output: Contribution to journalConference articlepeer-review


Channel characteristics in multi-cell IEEE 802.11 wireless LANs are different from those in single-cell environments due to cross-channel interference. The IEEE 802.11 protocol does not have any provisions for rate guarantees in the presence of contention, fading and interference effects. We monitor these location-dependent effects distributedly at each wireless host and use a centralized bandwidth manager to allocate bandwidth to all flows in a co-ordinated manner. Using the mobile hosts' location, the bandwidth manager can also take advantage of spatial reuse to increase channel capacity. Our results show that we are able to detect and adapt to changing channel conditions well, and thus ensure a high level of throughput fairness among the flows.

Original languageEnglish (US)
Pages (from-to)3511-3515
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number5
StatePublished - Dec 1 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: Sep 26 2004Sep 29 2004

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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