Performance Analysis of IEEE 802.11e EDCA With a Virtual Collision Handler

Author

Hwang, Ho Young ; Kim, Seong Joon ; Sung, Dan Keun ; Song, Nah-Oak

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon

Volume

57

Issue

2

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

1293

Lastpage

1297

Abstract

This paper presents an analytical model of IEEE 802.11e enhanced distributed channel access (EDCA) with a virtual collision handler (VCH). The proposed analytical model provides different access categories (ACs) for supporting the quality of service (QoS) of differentiated services by using different contention window (CW) sizes and arbitration interframe space (AIFS) values in EDCA. The proposed model considers a network of stations, each of which has multiple queues and a VCH for different ACs. Based on the proposed model, we analyze the throughput and delay performance of the EDCA with four different ACs and investigate the effect of the VCH by considering two VCH schemes. The analytical and simulation results show that the proposed analytical model is very accurate for various CW sizes and AIFS values.

Keywords

DiffServ networks; quality of service; wireless LAN; IEEE 802.11e; arbitration interframe space; differentiated services; enhanced distributed channel access; quality of service; virtual collision handler; Enhanced distributed channel access (EDCA); IEEE 802.11e; enhanced distributed channel access (EDCA); virtual collision handler (VCH);

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2007.911611

Filename

4378250