Rate control for advanced wireless networks

Oded Shaham, Sharon Aviran, Erez Simony, Yair Shapira

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


Wireless packet-switched IP networks have transport-layer problems due to their shared-medium nature. Bandwidth variation, changes of the bandwidth available for a connection throughout its lifetime, is a major acute problem. A number of factors may cause the connection's bandwidth variation. Change in the number or activity volume of other connections sharing the same bandwidth resource (e.g. the same time slot/s in GPRS networks), the narrowing/widening of the total bandwidth dedicated to data users (e.g. the start/end of voice calls in GPRS networks), and radio-link optimizations due to SNR changes (as in HDR) are significant factors in bandwidth breathing. Failing to properly respond to those changes will result in the transport protocol either underutilizing the scarce wireless bandwidth or overflowing the network. We describe WBST (Wireless Boosted Session Transport), Flash Networks' patented transport protocol, applying bandwidth estimation techniques, and present experimental results obtained both from a wireless-link emulator and from a live GPRS network, showing that WBST significantly outperforms TCP.

Original languageEnglish (US)
Number of pages6
StatePublished - Dec 1 2001
Externally publishedYes
EventProceedings - 2001 International Conference on Third Generation Wireless and Beyond - San Francisco, CA, United States
Duration: Jun 30 2001Jul 2 2001


OtherProceedings - 2001 International Conference on Third Generation Wireless and Beyond
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Engineering(all)


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