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Channel Status based Sliding Contention Window (CS-SCW) algorithm: A Fuzzy Control Approach for Medium Access in Wireless Networks

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Abstract

The dynamic nature of IEEE802.11 Wireless LAN network poses several challenges in developing a contention resolution scheme. A contention control algorithm guarantees maximum channel throughput by reducing collisions and improves the fairness among competing nodes. Based on the local history and neighbouring station’ status, a new algorithm namely Channel Status based Sliding Contention Window (CS-SCW) algorithm is proposed in this paper to adopt the optimum contention window interval. In the proposed algorithm, a fuzzy controller is used to infer about the current channel condition and to regulate the random access in network. Simulation results confirm the enhanced performance of the proposed CS-SCW algorithm in terms of success rate, packet loss, fairness index and energy consumption.

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Authors and Affiliations

  1. Department of Computer Science and Engineering, National Institute of Technology, Tiruchirappalli, 620015, India

    B. Nithya, C. Mala & E. Sivasankar

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  1. B. Nithya
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  2. C. Mala
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  3. E. Sivasankar
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Correspondence to B. Nithya.

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The authors declare that they have no conflict of interest.

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Communicated by V. Loia.

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Nithya, B., Mala, C. & Sivasankar, E. Channel Status based Sliding Contention Window (CS-SCW) algorithm: A Fuzzy Control Approach for Medium Access in Wireless Networks. Soft Comput 21, 1991–2004 (2017). https://doi.org/10.1007/s00500-015-1894-z

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