Buffer sizing for 802.11-based networks

  • Authors:
  • Tianji Li;Douglas Leith;David Malone

  • Affiliations:
  • Hamilton Institute, National University of Ireland Maynooth, Maynooth, Ireland;Hamilton Institute, National University of Ireland Maynooth, Maynooth, Ireland;Hamilton Institute, National University of Ireland Maynooth, Maynooth, Ireland

  • Venue:
  • IEEE/ACM Transactions on Networking (TON)
  • Year:
  • 2011

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Abstract

We consider the sizing of network buffers in IEEE 802.11-based networks. Wireless networks face a number of fundamental issues that do not arise in wired networks. We demonstrate that the use of fixed-size buffers in 802.11 networks inevitably leads to either undesirable channel underutilization or unnecessary high delays. We present two novel dynamic buffer-sizing algorithms that achieve high throughput while maintaining low delay across a wide range of network conditions. Experimental measurements demonstrate the utility of the proposed algorithms in a production WLAN and a lab test bed.