Title :
Modeling mis-routing calls due to user mobility in wireless VoIP
Author :
Pang, Ai-Chun ; Lin, Phone ; Lin, Yi-Bing
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This letter proposes an analytic model to study the mis-routing problem caused by user mobility in a wireless VoIP system. We derive the probability that there are n mis-routed calls when a subscriber moves from IP network to the GSM network. Our study indicates that if the user residence times in GSM location areas, inter-call origination times and the inter-call delivery times are of the same order, then the mis-routing effect can not be ignored.
Keywords :
Internet telephony; cellular radio; telecommunication network routing; GSM location areas; GSM network; IP network; analytic model; inter-call delivery times; inter-call origination times; mis-routing calls; user mobility; user residence times; wireless VoIP; Costs; GSM; IP networks; Intelligent networks; Internet telephony; Mediation; Mobile handsets; Telecommunication control; Web and internet services; Wireless application protocol;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.898719
