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A Robust and Cooperative MAC Protocol for IEEE 802.11a Wireless Networks

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Abstract

In wireless networks, it is well known that the interference of hidden nodes can interrupt frame receptions. Although several solutions have been proposed to alleviate the problem of DATA corruptions at receivers, control frame corruptions at transmitters have not been considered yet. In this paper, we propose an enhanced MAC protocol, called Robust and Cooperative Medium Access Control (RCMAC), to improve the network throughput and fairness by reducing control frame losses at transmitters. RCMAC uses a relay mechanism to allow transmitters of long distance links to receive control frames more robustly by relaying control frames via relay nodes. Furthermore, RCMAC improves the network throughput through fast two-hop DATA transmissions via relay nodes. Our extensive simulation results show that RCMAC has better performance than existing well-known MAC protocols.

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Authors and Affiliations

  1. Department of Computer Science and Engineering (CSE), Pohang University of Science and Technology (POSTECH), Pohang, Korea

    Dong-Wook Kim & Wan-Seon Lim

  2. Division of ITCE and Department of CSE, POSTECH, Pohang, Korea

    Young-Joo Suh

Authors
  1. Dong-Wook Kim
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  2. Wan-Seon Lim
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  3. Young-Joo Suh
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Correspondence to Dong-Wook Kim.

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Kim, DW., Lim, WS. & Suh, YJ. A Robust and Cooperative MAC Protocol for IEEE 802.11a Wireless Networks. Wireless Pers Commun 67, 689–705 (2012). https://doi.org/10.1007/s11277-011-0405-5

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  • DOI: https://doi.org/10.1007/s11277-011-0405-5

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