Seamless roaming between UMTS and IEEE 802.11 networks

• Autorzy: Matusz P. , Machań P. , Woźniak J.
• Języki publikacji: EN

Abstrakty

EN

Mobile Internet access is currently available mainly using 2G/3G cellular telecommunication networks and wireless local area networks. WLANs are perceived as a local complement to slower, but widely available cellular networks, such as existing GSM/GPRS or future UMTS networks. To benefit from the advantages offered by both radio access networks, a mobile user should be able to seamlessly roam between them without the need to terminate already established Internet connections. The goal of this paper is to present an overview of the profitability of performing vertical handovers between UMTS and IEEE 802.11b using Mobile IP. Several simulations have been carried out using NS-2, which prove that handovers from IEEE 802.11b to UMTS can, under certain circumstances, be profitable not only when there is no more IEEE 802.11b coverage. Simulation results show that a mobile user should be able to roam between these networks depending on the current available channel bandwidth and quality, generated traffic type and number of users in both of them.

Słowa kluczowe

EN

UMTS; IEEE 802.11b; handover; roaming; Mobile IP

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2004
• Tom: nr 4
• Strony: 21--27
• Opis fizyczny: Bibliogr. 15 poz., il.

Twórcy

autor

Matusz P.

• Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, G. Narutowicza st 11/12, 80-952 Gdańsk, Poland

autor

Machań P.

• Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, G. Narutowicza st 11/12, 80-952 Gdańsk, Poland

autor

Woźniak J.

• Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, G. Narutowicza st 11/12, 80-952 Gdańsk, Poland

Bibliografia

• [1] 3GPP TR 22.934, „Network (WLAN) interworking", V6.0.0, 09.2002.
• [2] 3GPP TR 23.923, „Combined GSM and Mobile IP Mobility Handling in UMTS IP CN", V.3.0.0, 05.2000.
• [3] 3GPP TR 25.853, „Delay Budget within the Access Stratum", V4.0.0, 03.2001.
• [4] A. Fenstag, H. Karl, and G. Schäfer, „Current developments and trends in handover design for ALL-IP wireless networks", Internal Technical Report, Technical University Berlin, Berlin, 08/18/2000, Version 1.3.
• [5] C. Perkins, „IP Mobility Support for IPv4", RFC 3344, 08.2002.
• [6] C. Smith and D. Collins, 3G Wireless Networks. New York: McGraw-Hill Telecom, 2002.
• [7] D. Johnson, C. Perkins, and J. Arkko, „Mobility Support in IPv6", IETF Internet Draft, 03.2003.
• [8] J. Gomez, C-Y. Wan, S. Kim, Z. Turanyi, and A. Valko, „Cellular IP", Internet Draft, 2000, draft-ietf-mobileip-cellularip-00.txt
• [9] H. Holma and A. Toskala, WCDMA for UMTS. Chichester: Wiley, 2002.
• [10] „IEEE Standard for Information Technology - LAN/MAN - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Speci_cations: High-Speed Physical Layer Extension in the 2.4 GHz Band", IEEE 802.11b: Supplement to International Standard ISO/IEC 8802-11: 1999(E) ANSI/IEEE Std 802.11, 1999.
• [11] L. Morand and S. Tessier, „Global mobility approach with mobile IP in all IP networks", IEEE Pers. Commun., Febr. 2002.
• [12] „The network sumulator - ns-2", http://www.isi.edu/nsnam/ns/
• [13] R. Ramjee and T. La Porta, „Paging support for IP mobility", Internet Draft, July 2000, draft-ietf-mobileip-paging-hawaii-01.txt
• [14] R. Ramjee, T. La Porta, S. Thuel, K. Vardhan, and L. Salgarelli, „IP micro-mobility support using HAWAII", Internet Draft, July 2000, draft-ietf-mobileip-hawaii-01.txt
• [15] „SLAC's PingER history tables ", http://www.slac.stanford.edu/cgi-wrap/table.pl