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Enhancements of the Dynamic TXOP Limit in EDCA Through a High-Speed Wireless Campus Network

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Abstract

IEEE802.11e is a concrete challenge to providing quality of service (QoS) aimed at interactive multimedia (IMM) applications due to the resource allocation parameter for heterogeneous traffic flows. This parameter is fixed for different specific IMM traffic flows in the IEEE802.11e standard. However, due to the variation in traffic load on wireless campus networks (WCNs), the fixed allocation of the channel resource parameter is not sufficient to guarantee QoS for IMM traffic flows. Thus, many researchers have investigated dynamic regulation of this resource allocation parameter to ensure QoS. However, there are still some unresolved problems with this parameter. This paper introduces an enhanced EDCA resource allocation parameter named dynamic transmission opportunity (TXOP) limit that regulates according to the variation in traffic load over WCN. This work also employs a mathematical modelling approach for the proposed parameter and numerical analysis of the existing and proposed parameters. The evaluation of the proposed model is simulated using Qualnet 5.1. The simulation results show that the proposed scheme allows improving the QoS performance of IMM traffic by reducing end-to-end delay. Additionally, the results show that the proposed scheme significantly improves global throughput.

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References

  1. IEEE 802.11 Working Group (2009). IEEE standard for information technology-telecommunications and information exchange between systems-local and metropolitan area networks-specific requirements part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications. In IEEE Std 802.11-2007 (Revision of IEEE Std 802.11-1999), C1.

  2. Alam, Md, Latif, S. A., Masud, M. H., & Anwar, F. (2013). A review on scheduling schemes of high speed wireless campus network for interactive multimedia transmission. In 2013 IEEE Malaysia international conference on IEEE communications (MICC) (pp. 462–467).

  3. IEEE Std. 802.11e-2005 (2005). Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications. Amendment 8: Medium access control (MAC) quality of service enhancements, IEEE Std. 802.11e.

  4. Ni, Q., Romdhani, L., & Turletti, T. (2004). A survey of QoS enhancements for IEEE 802.11 wireless LAN. Wireless Communications and Mobile Computing, 4(5), 547–566.

    Article  Google Scholar 

  5. Andreadis, A., & Zambon, R. (2007). QoS enhancement for multimedia traffics with dynamic TXOPlimit in IEEE 802.11 e. In Proceedings of the 3rd ACM workshop on QoS and security for wireless and mobile networks (pp. 16–22). ACM.

  6. Andreadis, A., & Zambon, R. (2012). Improving QoS performance in IEEE 802.11 e under heavy traffic loads. International Journal of Wireless Information Networks, 19(1), 49–61.

    Article  Google Scholar 

  7. Min, G., Jia, H., & Woodward, M. E. (2008). A dynamic IEEE 802.11 e txop scheme in wlans under self-similar traffic: Performance enhancement and analysis. In ICC’08. IEEE international conference on communications, 2008 (pp. 2632–2636). IEEE.

  8. Hu, J., Min, G., & Woodward, M. E. (2011). A threshold-based dynamic TXOP scheme for intra-AC QoS differentiation in IEEE 802.11 e networks. In 2011 IEEE 14th international conference on computational science and engineering (CSE) (pp. 526–531). IEEE.

  9. Hu, J., Min, G., & Woodward, M. E. (2013). Performance analysis of a threshold-based dynamic TXOP scheme for intra-AC QoS in wireless LANs. Future Generation Computer Systems, 38, 69–74.

    Article  Google Scholar 

  10. Ruscelli, A. L., Cecchetti, G., Alifano, A., & Lipari, G. (2012). Enhancement of QoS support of HCCA schedulers using EDCA function in IEEE 802.11 e networks. Ad Hoc Networks, 10(2), 147–161.

    Article  Google Scholar 

  11. Cecchetti, G., Ruscelli, A. L., Mastropaolo, A., & Lipari, G. (2012). Providing variable TXOP for IEEE 802.11 e HCCA real-time networks. In Wireless communications and networking conference (WCNC), 2012 IEEE (pp. 1508–1513). IEEE.

  12. Ruscelli, A. L., & Cecchetti, G. (2014). A IEEE 802.11 e HCCA scheduler with a reclaiming mechanism for multimedia applications. In Advances in multimedia (p. 22). Article ID 372693.

  13. Ju, K., Lee, D., & Chung, K. (2012). Dynamic TXOP allocation to support QoS based on channel conditions in wireless networks. In 8th international conference on computing technology and information management (ICCM): IEEE (pp. 721–724).

  14. Ju, K., & Chung, K. (2013). Dynamic TXOP allocation for multimedia QoS providing over wireless networks. In 2013 international conference on information networking (ICOIN) (pp. 397–401). IEEE.

  15. Kochher, R., & Chopra, V. (2012). Performance evaluation of scheduling algorithms in WLAN network with CBR application using qualnet. International Journal of Electrical, Electronics and Computer Engineering, 1(1), 1–5. (ISSN No. Online: 2277–2626).

    Google Scholar 

Download references

Acknowledgments

The authors would like to express their sincere gratitude to the Research Management Centre (RMC) of IIUM for Funding this Project Under RAGS-0013-00013 to improve IMM transmission.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia

    M. K. Alam, S. A. Latif, M. Akter, F. Anwar & Mohammad Kamrul Hasan

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  1. M. K. Alam
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  2. S. A. Latif
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  3. M. Akter
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  4. F. Anwar
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  5. Mohammad Kamrul Hasan
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Correspondence to M. K. Alam.

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Alam, M.K., Latif, S.A., Akter, M. et al. Enhancements of the Dynamic TXOP Limit in EDCA Through a High-Speed Wireless Campus Network. Wireless Pers Commun 90, 1647–1672 (2016). https://doi.org/10.1007/s11277-016-3416-4

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  • DOI: https://doi.org/10.1007/s11277-016-3416-4

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