Proportional fair coding for 802.11 WLANs

Xiaomin Chen*, Douglas Leith

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We consider an 802.11 WLAN with lossy links and flow delay deadlines and we derive the joint allocation of coding rate and airtime that achieves the proportionally fair throughput allocation. The noisy wireless links are modelled as bit-level binary symmetric channels (BSCs). We show that the joint optimisation decomposes into decoupled allocation tasks, i.e. partitioning into layers is optimal, and the optimal allocation assigns equal total air-times to flows.

Original languageEnglish
Article number6234972
Pages (from-to)468-471
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number5
Publication statusPublished - 2012
Externally publishedYes


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