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July  2009, 5(3): 493-510. doi: 10.3934/jimo.2009.5.493

A Markovian approach to per-flow throughput unfairness in IEEE 802.11 multihop wireless networks

Tomoya Tainaka 1, , Hiroyuki Masuyama 2, , Shoji Kasahara 2, and  Yutaka Takahashi 3,

1. 

Department of Systems Science, Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan
2. 

Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501
3. 

Dept. of Systems Science, Graduate School of Informatics, Kyoto University, Kyoto 606-8501

Received  September 2008 Revised  November 2008 Published  June 2009

It is well known that the end-to-end throughput in IEEE 802.11-based multihop wireless networks degrades due to the imprecise Extended Inter-Frame Space (EIFS) problem. The paper considers this throughput degradation issue by analyzing the end-to-end throughput in a backhaul-type wireless mesh network. Focusing on a three-node chain topology, we model it as a tandem queueing network with two nodes to derive the end-to-end throughput, and validate the analysis with ns-2 simulation. Numerical results show that the analytical results agree fairly well with simulation for a certain range of the offered load.
Keywords: IEEE 802.11 DCF, Markov analysis., throughput unfairness, multihop wireless LAN, CSMA/CA.
Mathematics Subject Classification: 68M20, 90B2.
Citation: Tomoya Tainaka, Hiroyuki Masuyama, Shoji Kasahara, Yutaka Takahashi. A Markovian approach to per-flow throughput unfairness in IEEE 802.11 multihop wireless networks. Journal of Industrial & Management Optimization, 2009, 5 (3) : 493-510. doi: 10.3934/jimo.2009.5.493
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