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Spare node cooperative method for IEEE 802.11 networks

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Abstract

Most of the existing cooperation methods select relay node(s) mainly based on the channel state information, but do not consider whether the selected relay nodes work or not. If the selected relays are invalidated, the performance of cooperative communication will deteriorate. To resolve the above problem, this paper investigates cooperative communication in IEEE 802.11 networks, and proposes a novel Spare Cooperative Method (SCM). SCM chooses a spare cooperation node to enhance the reliability of communication, and uses an enhanced handshaking mechanism to coordinate the access of source nodes and cooperation nodes to the wireless channel. The performance of SCM is comprehensively analyzed in terms of outage probability and saturated throughput. The analysis shows that SCM improves the performance of IEEE 802.11.

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Acknowledgments

This paper is supported by the National Science Foundation of China (60702055, 61071118), Program for New Century Excellent Talents in University (NCET-07-0914), Natural Science Foundation Project of CQ CSTC.

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Authors and Affiliations

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing, China

    Yun Li & Xiaohu You

  2. State key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Yun Li

  3. Special Research Centre for Wireless Information Networks, Chongqing University of Post and Telecommunications, Chongqing, 400065, China

    Yun Li & Weiliang Zhao

  4. NEC Laboratories America, Princeton, NJ, 08540, USA

    Chonggang Wang

  5. University of Arkansas, Fayetteville, AR, 72701, USA

    Kazem Sohraby

Authors
  1. Yun Li
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  2. Chonggang Wang
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  3. Xiaohu You
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  4. Weiliang Zhao
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  5. Kazem Sohraby
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Correspondence to Yun Li.

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Li, Y., Wang, C., You, X. et al. Spare node cooperative method for IEEE 802.11 networks. Wireless Netw 17, 671–683 (2011). https://doi.org/10.1007/s11276-010-0306-7

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