DocumentCode
1313069
Title
Reducing Call Setup Latency in Mobile VoIP Systems
Author
Pack, Sangheon ; Park, Gwangwoo ; Kim, Younghyun ; Lee, Wonjun
Author_Institution
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
Volume
15
Issue
10
fYear
2011
fDate
10/1/2011 12:00:00 AM
Firstpage
1126
Lastpage
1128
Abstract
In mobile voice over IP (VoIP) systems, user mobility leads to the increased call setup latency to find out the current location of user, which has a negative impact on users call quality. In this letter, we propose a prefetching technique for user location to reduce the call setup latency. We develop an analytical model and investigate the impacts of mobility parameters and thresholds.
Keywords
Internet telephony; mobility management (mobile radio); signalling protocols; SIP; call setup latency; mobile VoIP system; mobile voice over IP; mobility management; mobility parameter; mobility threshold; prefetching technique; user call quality; user location; user mobility; Analytical models; Mobile communication; Prefetching; Protocols; Registers; Servers; Wireless communication; Mobile VoIP; SIP; location management;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2011.082611.110527
Filename
6008529
Link To Document