Earticle

초록

영어

The IEEE 802.11e standard guarantees QoS in the MAC layer by using new HCF (Hybrid Coordination Function) protocol. The HCF is composed of two access functions: A distributed contention-based channel access function (EDCA) providing prioritized QoS and a cen-tralized polling-based channel access function (HCCA) providing para-meterized QoS. In this paper, we propose a new scheduling algorithm for HCCA to support QoS. The proposed scheduler guarantees QoS by using adaptive service intervals, transmission opportunities, and polling order.
The service schedule is based not only on the tra±c's TSPEC parameters but also on the instance bu®ered tra±c conditions and transmission de-lay of other tra±c. Simulation results show that the proposed scheduling algorithm is superior to the existing TGe Reference scheduler, SETT-EDD, and ARROW algorithms in terms of throughput, transmission delay and jitter.

목차

Abstract.
 1 Introduction
 2 Proposed Scheduling Algorithm
  2.1 Operation Method of the Proposed Scheduler
  2.2 Method of allocating TXOP
  2.3 Method of allocating SI
 3 Performance Evaluation of the Proposed Algorithm
  3.1 Simulation scenario
  3.2 Analysis of the Simulation Results
 4 Conclusion
 References

저자

• Sung-Ryun Kim [ School of Electrical and Computer Engineering, Ajou University ]
• Dong-Yul Lee [ School of Electrical and Computer Engineering, Ajou University ]
• Chae-Woo Lee [ School of Electrical and Computer Engineering, Ajou University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605