Title :
Evaluation of CRTP performance over cellular radio links
Author :
Degermark, M. ; Hannu, Hans ; Onsson, Lars-erikj ; Svanbro, Krister
Author_Institution :
Lulea Univ. of Technol., Sweden
fDate :
8/1/2000 12:00:00 AM
Abstract :
To make mobile IP telephony over cellular radio systems an economically viable alternative to circuit-switched voice, it is an absolute requirement that the 40-octet IP/UDP/RTP headers on IP telephony packets be reduced in size to conserve bandwidth and radio spectrum. We evaluate the performance of the default header compression scheme for IP/UDP/RTP, CRTP (RFC-2508), over links built on cellular radio access technology. We find that CRTP does not perform adequately over such links, and suggest that a more robust header compression scheme must be developed to make IP telephony over cellular economically viable
Keywords :
Internet telephony; cellular radio; data compression; radio access networks; radio links; transport protocols; CRTP performance evaluation; IP telephony packets; IP/UDP/RTP headers; RFC-2508; bandwidth conservation; cellular radio access technology; cellular radio links; cellular radio systems; circuit-switched voice; default header compression; mobile IP telephony; radio spectrum conservation; robust header compression; Automatic repeat request; Bit error rate; Cellular phones; Costs; Fading; Games; Land mobile radio cellular systems; Protocols; Speech; Telephony;
Journal_Title :
Personal Communications, IEEE
