Title :
VoIP Call Signaling Performance and Always-On Battery Consumption in HSDPA, WCDMA and WiFi
Author :
Arjona, Andres ; Ylä-Jääski, Antti
Author_Institution :
Nokia Siemens Networks Espoo, Espoo
Abstract :
Wireless broadband enables the use of VoIP with handheld mobile deices. Likewise, multi radio terminals provide the user with ubiquitous access. Even though broadband access might be available in different locations, performance still depends on the wireless technology used. We study the main signaling delays that take place in a voice call (registration and voice call setup delays) and compare them for different wireless accesses: HSDPA, WCDMA and WiFi. Likewise, possible optimizations with always-on mode and their drawbacks are presented. Signaling delays and total battery lifetime affect the perceived end user experience directly, and thus are important items to consider in addition to the overall voice quality.
Keywords :
Internet telephony; code division multiple access; delays; mobile radio; radio access networks; telecommunication signalling; ubiquitous computing; wireless LAN; HSDPA; VoIP call signaling performance; WCDMA; WiFi; battery consumption; battery lifetime; end user experience; handheld mobile devices; multiradio terminal; signaling delay; ubiquitous access; voice call registration; voice call setup delay; voice quality; wireless access; wireless broadband access; Batteries; Delay; Internet telephony; Laboratories; Multiaccess communication; Performance analysis; Portable computers; Signal analysis; Software performance; Switching circuits;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.736
