Analytical Model for Expected Packet Delay Evaluation in IEEE 802.11e

Author

Jansang, Aphirak ; Phonphoem, Anan ; Paillassa, Béatrice

Author_Institution

Dept. of Comput. Eng., Kasetsart Univ., Bangkok

Volume

2

fYear

2009

fDate

6-8 Jan. 2009

Firstpage

344

Lastpage

348

Abstract

IEEE 802.11e has been released to provide Quality of Service (QoS) support for Wireless LAN. The Call Admission Control (CAC) reference scheme in HCF Controlled Channel Access (HCCA) supports only Constant Bit Rate (CBR) traffic. In this paper, a queueing analytical model for evaluating the expected packet delay of Variable Bit Rate (VBR) has been proposed. The numerical results show that regular acceptance method cannot guarantee the QoS. The paper also shows that accepting a VBR flow with a small amount over mean data rate should be able to handle the problem without degradation of accepted flows.

Keywords

quality of service; queueing theory; telecommunication congestion control; wireless LAN; CAC reference scheme; HCF controlled channel access; IEEE 802.11e; call admission control; constant bit rate traffic; expected packet delay evaluation; quality of service; queueing analytical model; variable bit rate; wireless LAN; Analytical models; Bit rate; Call admission control; Delay; Mobile communication; Mobile computing; Quality of service; Queueing analysis; Traffic control; Wireless LAN; 802.11e; CAC; Delay Analysis; HCCA; Queueing Model; VBR;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Mobile Computing, 2009. CMC '09. WRI International Conference on

Conference_Location

Yunnan

Print_ISBN

978-0-7695-3501-2

Type

conf

DOI

10.1109/CMC.2009.157

Filename

4797145