Starvation modeling and identification in dense 802.11 wireless community networks

被引:0
作者
Hua, Cunqing [1 ]
Zheng, Rong [1 ]
机构
[1] Univ Houston, Dept Comp Sci, Houston, TX 77204 USA
来源
27TH IEEE CONFERENCE ON COMPUTER COMMUNICATIONS (INFOCOM), VOLS 1-5 | 2008年
关键词
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
With the,rowing number of spontaneously deployed WiFi hotspots and home networks, end-users often experience significant performance degradation or even starvation. However, we observe that tuning individual system parameters (channel, Tx power, carrier sense (CS) threshold, and transmit rate etc.) is insufficient and in some cases may lead to starvation. In this paper, we develop a comprehensive analytical model to characterize throughput of individual flows in dense IEEE 802.11 wireless community networks. The proposed model subsumes existing models for the IEEE 802.11 MAC in multihop wireless networks by accounting for heterogeneous transmission power levels and CS thresholds, as well as various sources of packet collisions. Based on the insight from the theoretical analysis and simulation results, we propose a simple identification mechanism that determines the sources of starvation using local measurements. Both the theoretical model and the identification algorithm are validated using ns-2 simulations.
引用
收藏
页码:1696 / 1704
页数:9
相关论文
共 24 条
[1]  
Akella A., 2005, MOBICOM
[2]  
[Anonymous], NETWORK SIMULATOR NS
[3]  
BEJERANO Y, 2004, MOBICOM
[4]   Performance analysis,of the IEEE 802.11 distributed coordination function [J].
Bianchi, G .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2000, 18 (03) :535-547
[5]   Dynamic tuning of the IEEE 802.11 protocol to achieve a theoretical throughput limit [J].
Calì, F ;
Conti, M ;
Gregori, E .
IEEE-ACM TRANSACTIONS ON NETWORKING, 2000, 8 (06) :785-799
[6]  
Cheng Yu-Chung, 2006, SIGCOMM
[7]  
GAO Y, 2006, ACM SIGMETRICS PERFO
[8]  
GARETTO M, 2006, IEEE INFOCOM
[9]  
Jain R., 1985, TR301 DEC
[10]  
Kim J, 2006, IEEE INFOCOM