Experimental Evaluation of PDU Concatenation in ULE with IP Telephony

Author

Prähauser, Christian ; Collini-Nocker, Bernhard

Author_Institution

Paris-Lodron Univ. of Salzburg, Salzburg

fYear

2007

fDate

13-14 Sept. 2007

Firstpage

109

Lastpage

113

Abstract

Efficient encapsulation of IP and other network packets is an important issue for wireless links. The Unidirectional Lightweight Encapsulation has been designed to be efficient, yet flexible in providing means to add new header extensions for developing requirements. One of the recently proposed extensions allows for wrapping several network packets into one SubNetwork Data Unit, the PDU-Concat mode. In this paper we give some first results on both the efficiency of this mode, but also critically analyze impacts of the concatenation on real-time audio traffic for IP telephony. For the tests a combination of a laboratory set-up with a DVB-C chain for the PDU-Concat processing and the Astra2connect network for the real satellite networking part has been utilized.

Keywords

Internet telephony; data encapsulation; digital video broadcasting; satellite communication; telecommunication traffic; Astra2connect network; DVB-C chain; IP telephony; PDU concatenation; ULE; header extensions; real-time audio traffic; satellite networking; subnetwork data unit; unidirectional lightweight encapsulation; wireless links; Computer networks; Concatenated codes; Encapsulation; Internet; Linux; Protocols; Telecommunication traffic; Telephony; Testing; Wrapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Satellite and Space Communications, 2007. IWSSC '07. International Workshop on

Conference_Location

Salzburg

Print_ISBN

978-1-4244-0938-9

Electronic_ISBN

978-1-4244-0939-6

Type

conf

DOI

10.1109/IWSSC.2007.4409400

Filename

4409400