A study on entrance link employing MIMO/unsymmetrical STBC scheme in wireless lan service over high-speed vehicle environments

Takahiro Nagasaki, Shuji Kubota

Research output: Research - peer-reviewArticle

Abstract

To solve the problem of traffic proliferation in the mobile communications, traffic offload over wireless LAN systems has been proposed as the one of promising solutions. High-speed and large-capacity communication has been realized by wireless LAN systems, but in the high-speed moving environments, BER performances degrade due to influence of Doppler frequency spread. In this study, the entrance link using the IEEE802.11ac standard for public wireless LAN services in high-speed trains is proposed for improving the capacity of the whole system by employing not only MIMO (Multiple Input Multiple Output) to increase the transmission rate, but also STBC (Space-Time Block Coding) to extend the distance. By applying unsymmetrical STBC for up and down-link, the communication distance between a base station and a train can be extended and it is confirmed by simulation including a passing pattern and stopping/starting pattern that the communication capacity can be increased.

LanguageEnglish
Pages1431-1436
Number of pages6
JournalIEEJ Transactions on Electronics, Information and Systems
Volume136
Issue number10
DOIs
StatePublished - 2016

Fingerprint

Space-time block coding (STBC)
Local area networks
Telecommunication links
Communication
Telecommunication traffic
Base stations

Keywords

  • High-speed Vehicle Environment
  • MIMO
  • STBC
  • Wireless LAN

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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abstract = "To solve the problem of traffic proliferation in the mobile communications, traffic offload over wireless LAN systems has been proposed as the one of promising solutions. High-speed and large-capacity communication has been realized by wireless LAN systems, but in the high-speed moving environments, BER performances degrade due to influence of Doppler frequency spread. In this study, the entrance link using the IEEE802.11ac standard for public wireless LAN services in high-speed trains is proposed for improving the capacity of the whole system by employing not only MIMO (Multiple Input Multiple Output) to increase the transmission rate, but also STBC (Space-Time Block Coding) to extend the distance. By applying unsymmetrical STBC for up and down-link, the communication distance between a base station and a train can be extended and it is confirmed by simulation including a passing pattern and stopping/starting pattern that the communication capacity can be increased.",
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