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Distributed Wi-Fi Interference Coordination for Dense Deployments

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Abstract

Unlicensed spectrum is increasingly being used by mobile operators to meet the mobile traffic demand, and Wi-Fi is foreseen as one of the technologies for implementing mobile traffic offloading. However, Wi-Fi efficiency does not scale well as node density increases, and IEEE 802.11ax Task Group (TGax) was created in 2014 for developing Wi-Fi technology enhancements in dense deployments. This paper investigates Wi-Fi performance in the presence of Overlapping Basic Subscriber Set (OBSS) Wi-Fi networks in indoor dense deployments. We observe that Wi-Fi could benefit from scheduled operation with proper OBSS interference coordination. We propose a novel distributed interference coordination scheme for Wi-Fi scheduled mode operation, and evaluate it through system-level simulations. Results indicate that the proposed scheme provides significant improvements over Enhanced Distributed Channel Access (EDCA) for downlink (DL) traffic.

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Authors and Affiliations

  1. Samsung SIDIA, Manaus, AM, Brazil

    Fuad M. Abinader Jr

  2. Institute of Technological Development (INDT), Manaus, AM, Brazil

    André M. Cavalcante, Erika P. L. Almeida & Robson Vieira

  3. Nokia Bell Labs, Murray Hill, NJ, USA

    Sayantan Choudhury, Fabiano S. Chaves, Esa Tuomaala & Klaus Doppler

  4. Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil

    Vicente A. de Sousa Jr

Authors
  1. Fuad M. Abinader Jr
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  2. Sayantan Choudhury
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  3. Vicente A. de Sousa Jr
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  4. Fabiano S. Chaves
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  5. André M. Cavalcante
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  6. Erika P. L. Almeida
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  7. Robson Vieira
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  8. Esa Tuomaala
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  9. Klaus Doppler
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Corresponding author

Correspondence to Fuad M. Abinader Jr.

Additional information

Fuad was with INDT at the time this paper was submitted.

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Abinader, F.M., Choudhury, S., de Sousa, V.A. et al. Distributed Wi-Fi Interference Coordination for Dense Deployments. Wireless Pers Commun 97, 1033–1058 (2017). https://doi.org/10.1007/s11277-017-4550-3

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  • DOI: https://doi.org/10.1007/s11277-017-4550-3

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