Advertisement

A Hierarchical Scheduler Design for Multiple Traffics with Reduced Feedback

  • Qiaoyun Sun
  • Zhang Haijun
  • Sun Kai
  • Zhang Shuguang
  • Wu Cuiting
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 219)

Abstract

In this paper, a novel scheduler is designed for multiple traffic classes with reduced feedback. The novel scheduler consists of two stages, i.e., at the first scheduling stage, the inter-traffic scheduler dynamically allocates the clustered bandwidth resources to each traffic class by a periodic and triggered way; at the second scheduling stage, and the intra-traffic scheduler schedules different users’ packets within each traffic class simultaneously. In order to reduce the feedback, each user only reports the CQI of n subchannels that have the best normalized SNR. The proposed algorithm not only enhances the system throughput but also reduces the feedback load under the condition that the QoS requirements of RT traffic are satisfied. Simulations validate the effectiveness and good performance of the proposed scheme.

Keywords

Scheduler Multiple traffic classes Reduced feedback 

Notes

Acknowledgments

This work was supported by Key Laboratory of Universal Wireless Communications, (Beijing University of Posts and Telecommunications), Ministry of Education, P. R.China) under the Grant No KFKT-2010104, NSFC 61001124, BCU JYB201120 and National University Student Innovation Program (111012616).

References

  1. 1.
    Jalali A, Padovani R, Pankaj R (2000) Data throughput of CDMA-HDR, a high efficiency high data rate personal communication wireless system. Proc IEEE VTC’00 6(01):1854–1858 Google Scholar
  2. 2.
    Matthew A, Krishnan K, Kavita R, Alexander LS, Phil W (2001) Providing quality of service over a shared wireless link. IEEE Commun Mag 39(2):150–154Google Scholar
  3. 3.
    Shin O-S, Lee KB (2004) Packet scheduling over a shared wireless link for heterogeneous classes of traffic. Proc IEEE ICC’04 1(6):58–62Google Scholar
  4. 4.
    Rhee JH, Holtzman J, Kim DK (2004) Performance analysis of the adaptive EXP/PF channel scheduler in an AMC/TDM system. IEEE Commun Lett 8(8):497–499CrossRefGoogle Scholar
  5. 5.
    Ryu S, Ryu B, Seo H, Shin M (2005) Urgency and efficiency based packet scheduling algorithm for OFDMA wireless system. Proc IEEE ICC’05 4(6):2779–2785Google Scholar
  6. 6.
    Svedman P, Wilson SK, Leonard JC Jr, Ottersten B (2007) Opportunistic beamfoming and scheduling for OFDMA systems. IEEE Trans Communi 55(05):941–952CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  • Qiaoyun Sun
    • 1
  • Zhang Haijun
    • 2
  • Sun Kai
    • 1
  • Zhang Shuguang
    • 1
  • Wu Cuiting
    • 1
  1. 1.Information Engineering DepartmentBeijing City UniversityBeijingChina
  2. 2.North Electronic InstituteBeijingChina

Personalised recommendations