A TXOP-based Scheduling Algorithm for Video Transmission in IEEE 802.11e Networks

Author

Deng, Qianhua ; Cai, Anni

Author_Institution

Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun.

fYear

2006

fDate

38869

Firstpage

573

Lastpage

576

Abstract

The IEEE 802.11e proposes new features to support quality-of-service (QoS) in wireless local area network (WLAN). It provides several configurable parameters for four access categories (AC) to achieve differentiated service in the enhanced distributed channel access (EDCA) mechanism. However it is no longer effective when diverse burst flows present in the same AC. In this paper, an adaptive transmission opportunity (TXOP) allocation method, called surplus TXOP diverter (STXD), is designed to improve the performance of variable bit rate (VBR) video transmission. Through our simulation study, we demonstrate the STXD can provide good delay guarantee for burst video transmission without violating the long-term fairness. In multi-rate scenario, the STXD can solve the performance anomaly and guarantee time-fairness

Keywords

DiffServ networks; error statistics; quality of service; scheduling; video communication; wireless LAN; EDCA mechanism; IEEE 802.11e network; QoS; STXD; VBR; WLAN; adaptive transmission opportunity; differentiated service; diverse burst flow; enhanced distributed channel access; quality-of-service; scheduling algorithm; surplus TXOP diverter; variable bit rate; video transmission; wireless local area network; Aggregates; Bit rate; Delay effects; Physical layer; Quality of service; Scheduling algorithm; Streaming media; Throughput; Videoconference; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

ITS Telecommunications Proceedings, 2006 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

0-7803-9587-5

Electronic_ISBN

0-7803-9587-5

Type

conf

DOI

10.1109/ITST.2006.288969

Filename

4068657