Title :
Cross-layer optimization for IEEE 802.11 DCF in fading channels
Author :
Wang, Qian ; Xu, Ruzhi ; Yuan, Dongfeng
Author_Institution :
Sch. of Comput. & Inf. Eng., Shandong Univ. of Finance, Jinan, China
Abstract :
An assumption of the traditional layered protocol architecture is that all layers can be operated and optimized independently. Unfortunately, this assumption is not satisfied in wireless networks because wireless links introduce interdependence between physical (PHY) and upper layers. This paper investigates the impact of channel conditions on the performance of IEEE 802.11 DCF and proposes cross-layer optimization and design approach to improve the performance of DCF in fading channels. In this paper, a novel fade-induced packet error rate expressions based on fading statistics and error correction capability are developed. Based on these results, we propose a cross-layer analytical model to analyze the performance of IEEE 802.11 DCF in fading channels. The impact of channel conditions on the DCF performance is revealed.
Keywords :
error statistics; fading channels; optimisation; protocols; radio links; wireless LAN; IEEE 802.11 DCF; channel condition; cross-layer optimization; error correction capability; fade-induced packet error rate expression; fading channel; fading statistics; layered protocol architecture; physical layer; upper layer; wireless link; wireless network; Analytical models; Doppler effect; IEEE 802.11 Standards; Markov processes; Rayleigh channels; Throughput; IEEE 802.11 DCF; cross-layer design; fading channels;
Conference_Titel :
Communication Technology (ICCT), 2011 IEEE 13th International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-61284-306-3
DOI :
10.1109/ICCT.2011.6157839
