A Communication System with a Fast Handover under a High Speed Mobile Environment

A Communication System with a Fast Handover under a High Speed Mobile Environment

This paper proposes a communication system using Wi-Fi (IEEE802.11g) to link between the Internet and high speed rail systems traveling at around 300km/h. In order to adapt Wi-Fi for high speed mobile communication, we optimized its coverage on a rail track with a developed directional antenna, whic...

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Hauptverfasser: Yamada, Kazuhiro, Sakai, Yosuke, Suzuki, Takanobu, Kawahara, Yoshihiro, Asami, Tohru, Aida, Hitoshi
Format: Tagungsbericht
Sprache:eng
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Antennas
IEEE 802.11 Standards
Mobile communication
Rails
Throughput
Wireless communication
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creator Yamada, Kazuhiro
Sakai, Yosuke
Suzuki, Takanobu
Kawahara, Yoshihiro
Asami, Tohru
Aida, Hitoshi
description This paper proposes a communication system using Wi-Fi (IEEE802.11g) to link between the Internet and high speed rail systems traveling at around 300km/h. In order to adapt Wi-Fi for high speed mobile communication, we optimized its coverage on a rail track with a developed directional antenna, which has a communication range of around 500m by 10mW. With the antenna, however, a mobile entity had to switch over antennae (a layer 2 handover (L2HO)) every 6 to 7 seconds. Furthermore Mobile IP handovers (a layer 3 handover (L3HO)) had to be appropriately controlled to avoid a simultaneous handover of Layer 2 and 3, which results in a fatal communication disruption. Therefore the designed system in this paper separated a L3HO from a L2HO. As a result, a maximum of 25Mbps with an average of 16Mbps for the UDP throughput and an average L2HO time of 110ms were realized while travelling at 270km/h.
doi_str_mv 10.1109/VETECF.2010.5594584
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subjects Antennas
IEEE 802.11 Standards
Mobile communication
Rails
Throughput
Wireless communication
title A Communication System with a Fast Handover under a High Speed Mobile Environment
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