Title :
Evaluation of Handover Performance for TCP Traffic Based on Generic Link Layer Context Transfer
Author :
Sachs, Joachim ; Khurana, Birinder Singh ; Mähönen, Petri
Author_Institution :
Corp. Res., Ericsson GmbH, Aachen
Abstract :
In this paper we present three context transfer mechanisms to support seamless (inter-system) handover: L2 tunnel, SDU reconstruction and SDU context transfer. The hand-over schemes are evaluated for services based on TCP SACK. The influence of different system parameters like the link layer round trip time and block error rate are investigated. It is shown that there can be large differences in handover performance caused by packet loss or packet duplication, which interact with TCP congestion control. L2 tunnel always performs best but has the highest complexity. It is followed by SDU reconstruction and then SDU context transfer respectively. All schemes are always better in performance than when no context transfer is used
Keywords :
error statistics; mobile radio; radio links; telecommunication congestion control; telecommunication traffic; transport protocols; L2 tunnel; SDU context transfer; SDU reconstruction; TCP SACK; TCP congestion control; TCP traffic; block error rate; generic link layer context transfer; handover performance; link layer round trip time; packet duplication; Context; Error analysis; Frequency; Land mobile radio; Mobile communication; Performance loss; Rats; Telecommunication traffic; Transport protocols; Wireless networks;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254236
