A new active queue management algorithm for real-time interactive communication in TCP/IP networks

Author

Wu, Jin ; Djemame, Karim

Author_Institution

Sch. of Comput., Leeds Univ., UK

Volume

1

fYear

2002

fDate

25-28 Nov. 2002

Firstpage

150

Abstract

Recent research has shown that the deployment of active queue management (AQM) would alleviate problems related to high packet loss and long transmission delays and also provide some notion of quality of service (QoS) by intelligent packet marking or dropping. We analyze the relationship between the end-to-end performance and switch nodes´ operation state in the current TCP/IP architecture. Based on this analysis, guidelines for performing control actions at gateways are given. A new AQM algorithm, adaptive optimized marking (AOM), is also introduced. We then compare AOM with RED (random early detection) by simulation using ns-2 to show that AOM does improve the end-to-end performance for interactive communications. We also show that a significant performance enhancement for interactive applications in TCP/IP networks is possible, even using the conventional AQM architecture.

Keywords

digital simulation; interactive systems; packet switching; quality of service; queueing theory; telecommunication network management; transport protocols; AQM algorithm; FIFO service; QoS; TCP/IP architecture; TCP/IP networks; active queue management algorithm; adaptive optimized marking; end-to-end performance; first in first out service; gateways; high packet loss; intelligent packet dropping; intelligent packet marking; interactive communications; long transmission delay; ns-2; quality of service; random early detection; real-time interactive communication; simulation; switch nodes; Communication system control; Delay; Guidelines; IP networks; Performance analysis; Propagation losses; Quality management; Quality of service; Switches; TCPIP;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2002. ICCS 2002. The 8th International Conference on

Print_ISBN

0-7803-7510-6

Type

conf

DOI

10.1109/ICCS.2002.1182455

Filename

1182455