Providing for QoS maintenance in wireless IP environments

Author

Passas, Nikos ; Zervas, Evangelos ; Hortopan, George ; Merakos, Lazaros

Author_Institution

Dept. of Informatics & Telecommun., Athens Univ., Greece

Volume

6

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

3041

Abstract

A flow rejection algorithm for the dynamic RSVP (dRSVP) is proposed. dRSVP is an enhanced version of RSVP, aiming at providing dynamic quality of service (QoS) support in a variable bandwidth environment through guarantees of ranges of bandwidth instead of specific values. Flow rejection occurs when the channel quality decreases to a level that even the minimum bandwidth requirements per flow cannot be fulfilled. The proposed algorithm aims at significantly improving the flow dropping probability, without affecting the bandwidth utilization. Its operation is based on setting priority classes and rejecting the minimum required number of flows per class, in order to guarantee QoS to the remaining. Both mathematical analysis and simulation results show that the overall flow rejection probability can be significantly reduced.

Keywords

Internet; bandwidth allocation; quality of service; radio networks; transport protocols; bandwidth environment; channel quality; flow rejection algorithm; quality of service; resource reservation protocol; wireless IP environments; Access protocols; Analytical models; Bandwidth; IP networks; Informatics; Intserv networks; Mathematical analysis; Next generation networking; Quality of service; Transport protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258794

Filename

1258794