Title :
Fast IP Handover Performance Improvements Using Performance Enhancing Proxys between Satellite Networks and Wireless LAN Networks for High-Speed Trains
Author :
Han, Myung-hee ; Han, Ki-Seop ; Lee, Dong-Jun
Author_Institution :
Telecommun. network Bus., Samsung Electron., Seoul
Abstract :
Internet services using satellites for high-speed trains are being widely studied these days. The major drawback of satellite networks is that antennas on the trains cannot receive signals from the satellites in train stations. To solve this problem, performing IP handover to terrestrial wireless networks in the stations is considered. However, due to long disconnection time of layer 2 and layer 3 inherent in IP handover, the performance of current IP handover schemes is not satisfactory in this case. In our previous study regarding this situation, we proposed a new fast IP handover scheme between a geo-satellite network and a terrestrial wireless LAN network for high-speed trains. Although the proposed scheme reduces the handover latency, TCP throughput deterioration remains due to increased Round Trip Time (RTT) caused by the movement of MR (Mobile Router) to the link with longer propagation delay than the previous one. In this paper, we apply a Performance Enhancing Proxy (PEP) to previous research and show performance improvements through simulations.
Keywords :
IP networks; mobile radio; railway communication; satellite communication; telecommunication network routing; transport protocols; wireless LAN; IP handover performance improvements; TCP throughput deterioration; geo-satellite network; high-speed trains; mobile router; performance enhancing proxy; round trip time; terrestrial wireless LAN network; Artificial satellites; Digital multimedia broadcasting; Digital video broadcasting; Satellite broadcasting; Satellite communication; TCPIP; Throughput; Web and internet services; Wireless LAN; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1644-8
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2008.519