SCTP-based Handover for VoIP over IEEE802.11 WLAN Using Device Virtualization

Author

Wang, Wei-Cheng ; Hsu, Chih-Hung ; Chen, Yung-Mu ; Chung, Tein-Yaw

Author_Institution

Yuan Ze Univ.

Volume

2

fYear

2007

fDate

12-14 Feb. 2007

Firstpage

1073

Lastpage

1076

Abstract

Wireless VoIP services require not only end-to-end transmission delay between end users but also small handoff delay between heterogeneous networks. This study designs and implements a SCTP-based mobile VoIP system in a campus network. The multi-homing capability and dynamic address configuration extension of SCTP are applied in the VoIP system to provide seamless handoff. Also, IEEE 802.21 specifies 802 media access-independent mechanisms (MIH) to optimize handoffs between heterogeneous 802 systems and cellular systems. The proposed VoIP system combines SCTP and 802.21 MIH function to improve the performance of handoff in a campus network.

Keywords

Internet telephony; cellular radio; mobile computing; wireless LAN; IEEE 802.21; IEEE802.11 WLAN; SCTP-based handover; cellular systems; device virtualization; media access-independent mechanisms; mobile VoIP system; multi-homing capability; wireless VoIP; Access protocols; Availability; Communication system control; Cross layer design; Joining processes; Middleware; Network interfaces; Nonhomogeneous media; Switches; Wireless LAN; MIH; SCTP; VoIP; seamless handover; virtual device;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, The 9th International Conference on

Conference_Location

Gangwon-Do

ISSN

1738-9445

Print_ISBN

978-89-5519-131-8

Type

conf

DOI

10.1109/ICACT.2007.358544

Filename

4195345