QoS Model for Improving End-to-End Service in 802.11e-Based Wireless Ad Hoc Networks

  • Joo-Sang Youn
  • Seung-Joon Seok
  • Chul-Hee Kang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4159)


In order to obtain better performance in wireless ad hoc networks, the majority of existing work focuses on the multi-priority based packet scheduling mechanism under multiple service classes, admission control and rate policing, according to application requirements and network conditions. In addition, no studies have reported on the feasibility and scalability of adapting the IEEE 802.11 EDCA scheme in such networks. This paper presents a new QoS provisioning model called Dynamic Hop Service Differentiation (DHSD), which performs dynamic class selection based on estimation of each service class (AC) in 802.11e based ad hoc networks. This model is designed for Soft QoS provisioning. Performance evaluation is performed by simulation using OPNET. It is demonstrated that this QoS model outperforms existing service models in wireless ad hoc environments.


Service Class Access Category Guarantee Service Dynamic Class Selection Average Loss Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Lee, S.B., Ahn, G.S., Campbell, A.T.: Improving UDP and TCP performance in mobile ad hoc networks with INSIGNIA. IEEE Commun. Mag. 39(6), 156–165 (2001)CrossRefGoogle Scholar
  2. 2.
    Lo, A., Xiao, H., Chua, K.C.: A Flexible Quality of Service Model for Mobile Ad hoc networks. In: IEEE Vehicular Technology Conference, pp. 445–449 (2000)Google Scholar
  3. 3.
    Veres, A., Ahn, G., Campbell, A.T., Sun, L.: SWAN: Service Differentiation in Stateless Wirelass Ad hoc network. In: Conference on Computer Communications (2002)Google Scholar
  4. 4.
    Wang, K.C., Ramanathan, P.: QoS assurances through class selection and proportional differentiation in wireless networks. IEEE J. Sel. Areas Commun. 23(3), 573–584 (2005)CrossRefGoogle Scholar
  5. 5.
    Lei, C., Heinzelman, W.B.: QoS-aware routing based on bandwidth estimation for mobile ad hoc networks. IEEE J. Sel. Areas Commun. 23(3), 561–572 (2005)CrossRefGoogle Scholar
  6. 6.
    The IEEE P802.11 Task Group E. The IEEE 802.11e, [Online] Available:
  7. 7.
    Aad, I., casterlluccia, C.: Differentiation mechanisms for IEEE 802.11. In: ieee inforcom (2001)Google Scholar
  8. 8.
    Iera, A., Ruggeri, G., Tripodi, D.: An Algorithm for Dynamic Priority Assignment in 802.11e WLAN MAC Protocols. In: de Souza, J.N., Dini, P., Lorenz, P. (eds.) ICT 2004. LNCS, vol. 3124, pp. 1267–1273. Springer, Heidelberg (2004)CrossRefGoogle Scholar
  9. 9.
    Xiao, Y., Li, H.: Local data control and admission control for QoS support in wireless ad hoc networks. Vehicular Technology. IEEE Transaction 53(5), 1558–1572 (2004)CrossRefMathSciNetGoogle Scholar
  10. 10.
    del Prado Pavón, J., Shankar, S.: Impact of Frame Size, Number of Stations and Mobility on the Throughput Performance of IEEE 802.11e. In: IEEE Wireless Commun. and Net. Conf. (2004)Google Scholar
  11. 11.
    Romdhani, L., Ni, Q., Turletti, T.: Adaptive EDCF: Enhanced Service Differentiation for IEEE 802.11 Wireless Ad-Hoc Networks. In: IEEE Wireless Commun. and Net. Conf. (2003)Google Scholar
  12. 12.
  13. 13.
    Coutras, C., Gupta, S., Shroff, N.B.: Scheduling of real-time traffic in IEEE 802.11 wireless LANs. Wireless Netw. 6, 457–466 (2000)MATHCrossRefGoogle Scholar
  14. 14.
    Banchs, A., P’erez, X.: Providing throughput guarantees in IEEE 802.11 wireless LAN. In: Wireless Communications Networking Conf., vol. 1, pp. 130–138 (2002)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Joo-Sang Youn
    • 1
  • Seung-Joon Seok
    • 2
  • Chul-Hee Kang
    • 1
  1. 1.Department of Electronics and Computer EngineeringKorea UniversitySeoulKorea
  2. 2.Dept. of Computer EngineeringKyungnam UniversityKyungnamKorea

Personalised recommendations