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AP-Initiated Reservations for Performance Enhancement in 802.11 MAC

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Abstract

In the infrastructure mode of the IEEE 802.11 Wireless Local Area Networks (WLANs), usually an Access Point (AP) requires more transmission opportunities than mobile stations, since the AP relays all the data traffic among mobile stations. However, the current MAC protocol gives AP the same opportunity with mobile stations for channel accessing, and it may introduce unfairness in the infrastructure mode of WLANs. In this paper, aiming at resolving the unfairness problem and enhancing the network performance, we propose an AP-initiated reservation scheme. Our scheme gives a high priority for AP’s channel accessing and allows AP to transmit multiple frames at once. We develop an analytical model to study the performance of proposed scheme, and also perform extensive simulations. Both the analytical and simulation results show that proposed scheme significantly enhances the performance of 802.11 MAC.

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Acknowledgments

This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2013008855), and in part by the Sabbatical Grant of Kwangwoon University in 2013.

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Authors and Affiliations

  1. Department of Electronics Convergence Engineering, Kwangwoon University, Seoul, Korea

    Seung Hyong Rhee & Xiaoying Lei

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  1. Seung Hyong Rhee
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  2. Xiaoying Lei
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Correspondence to Seung Hyong Rhee.

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Rhee, S.H., Lei, X. AP-Initiated Reservations for Performance Enhancement in 802.11 MAC. Wireless Pers Commun 78, 1953–1964 (2014). https://doi.org/10.1007/s11277-014-2055-x

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  • DOI: https://doi.org/10.1007/s11277-014-2055-x

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