Robust header compression for real-time services in cellular networks

Author

Cellatoglu, A. ; Fabri, S. ; Worrall, S. ; Sadka, A. ; Kondoz, A.

Author_Institution

Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK

fYear

2001

fDate

2001

Firstpage

124

Lastpage

128

Abstract

The 3G mobile-IP networks currently being developed will support end-to-end enhanced real-time multimedia services. End-to-end IP enables very high flexibility for transmission over a mobile network. Conversational services require the use of the Real-time Transport Protocol (RTP), which is typically deployed on top of UDP/IP, to facilitate acceptable quality of service at the receiver. The main drawback of using RTP/UDP/IP is the relatively large overhead imposed by these headers (at least 40/60 bytes in each packet), which leads to significant spectral inefficiency, particularly for low-bit rate speech applications. This paper examines current header compression techniques, CRTP & ROCCO, for multimedia services over IP and examines their performance in mobile channel environments

Keywords

cellular radio; data compression; multimedia communication; quality of service; radio networks; transport protocols; voice communication; 3G mobile-IP networks; CRTP; ROCCO; RTP; RTP/UDP/IP; Real-time Transport Protocol; UDP/IP; cellular networks; low-bit rate speech applications; mobile channel environments; mobile network; multimedia services; overhead; performance; quality of service; real-time multimedia services; real-time services; robust header compression; spectral inefficiency;

fLanguage

English

Publisher

iet

Conference_Titel

3G Mobile Communication Technologies, 2001. Second International Conference on (Conf. Publ. No. 477)

Conference_Location

London

ISSN

0537-9989

Print_ISBN

0-85296-731-4

Type

conf

DOI

10.1049/cp:20010025

Filename

923522