Title :
Proportional Fair Coding for 802.11 WLANs
Author :
Chen, Xiaomin ; Leith, Douglas
fDate :
10/1/2012 12:00:00 AM
Abstract :
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.
Keywords :
encoding; optimisation; radio links; wireless LAN; wireless channels; 802.11 WLAN; BSC; bit-level binary symmetric channels; decoupled allocation tasks; flow delay deadlines; joint optimisation; lossy links; noisy wireless links; optimal allocation; proportional fair coding; Delay; Encoding; IEEE 802.11 Standards; Optimization; Resource management; Throughput; Wireless LAN; 802.11 WLANS; binary symmetric channels; code rate selection; network utility maximisation; proportional fairness;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2012.070312.120369
