論文

招待有り 査読有り
2015年7月

Survey of Transmission Methods and Efficiency Using MIMO Technologies for Wireless LAN Systems

IEICE TRANSACTIONS ON COMMUNICATIONS
  • Takefumi Hiraguri
  • ,
  • Kentaro Nishimori

E98B
7
開始ページ
1250
終了ページ
1267
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1587/transcom.E98.B.1250
出版者・発行元
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG

Multiple-input multiple-output (MIMO) transmission is attracting interest for increasing the transmission rates of wireless systems. This paper surveys MIMO transmission technology from the viewpoints of transmission methods, access control schemes, and total transmission efficiency. We consider wireless local area networks (WLAN) systems that use MIMO technology; moreover, we focus on multiuser MIMO (MU-MIMO) technology, which will be introduced in next-generation WLAN systems such as IEEE802.11ac. This paper explains the differences in the detailed access control procedures for MIMO and MU-MIMO transmission, including channel state information (CSI) acquisition. Furthermore, the issues related to CSI feedback and solutions are also discussed. Related works on the medium access control (MAC) protocol in MIMO/MU-MIMO transmission are introduced. In addition, the throughput performance using MIMO/MU-MIMO transmission is evaluated considering an IEEE802.11ac-based WLAN system. From the numerical evaluation, it is shown that the overhead due to CSI feedback from the user terminals to the base station causes a decrease in the throughput. We verified that implicit beamforming, which eliminates CSI feedback, is effective for solving this issue.

Web of Science ® 被引用回数 : 27

リンク情報
DOI
https://doi.org/10.1587/transcom.E98.B.1250
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000359496400015&DestApp=WOS_CPL
URL
http://dblp.uni-trier.de/db/journals/ieicet/ieicet98b.html#journals/ieicet/HiraguriN15