Research Article
A rate adaptation algorithm for IEEE 802.11 WLANs based on MAC-layer loss differentiation
@INPROCEEDINGS{10.1109/ICBN.2005.1589671, author={Qixiang Pang and Victor C.M. Leung and Soung C. Liew}, title={A rate adaptation algorithm for IEEE 802.11 WLANs based on MAC-layer loss differentiation}, proceedings={2nd International ICST Conference on Broadband Networks}, publisher={IEEE}, proceedings_a={BROADNETS}, year={2006}, month={2}, keywords={}, doi={10.1109/ICBN.2005.1589671} }- Qixiang Pang
Victor C.M. Leung
Soung C. Liew
Year: 2006
A rate adaptation algorithm for IEEE 802.11 WLANs based on MAC-layer loss differentiation
BROADNETS
IEEE
DOI: 10.1109/ICBN.2005.1589671
Abstract
In a WLAN subject to variable wireless channel conditions, rate adaptation plays an important role to more efficiently utilize the physical link. However, the existing rate adaptation algorithms for IEEE 802.11 WLANs do not take into account the loss of frames due to collisions. In a WLAN with coexistence of multiple stations, two types of frame losses due to (a) link errors and (b) collisions over the wireless link can coexist and severely degrade the performance of the existing rate adaptation algorithms. In this paper, we propose a new automatic rate fallback algorithm that can differentiate the two types of losses and sharpen the accuracy of the rate adaptation process. Numerical results show that the new algorithm can substantially improve the performance of IEEE 802.11 WLANs.
