2014年4月
Time-Domain Windowing Design for IEEE 802.11af Based TVWS-WLAN Systems to Suppress Out-of-Band Emission
IEICE Transactions on Communications
- ,
- ,
- 巻
- E97.B
- 号
- 4
- 開始ページ
- 875
- 終了ページ
- 885
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1587/transcom.e97.b.875
- 出版者・発行元
- Institute of Electronics, Information and Communications Engineers (IEICE)
This paper proposes out-of-band emission reduction schemes for IEEE 802.11af based Wireless Local Area Network (WLAN) systems operating in TVWhite Spaces (TVWS). IEEE 802.11af adopts Orthogonal Frequency Division Multiplexing (OFDM) to exploit the TVWS spectrum effectively. The combination of the OFDM and TVWS may be able to solve the problem of frequency depletion. However the TVWS transmitter must satisfy a strict transmission spectrum mask and reduce out-of-band emission to protect the primary users. The digital convolution filter is one way of reducing the out-of-band emission. Unfortunately, implementing a strict mask needs a large number of filter taps, which causes high implementation complexity. Time-domain windowing is another effective approach. This scheme reduces out-of-band emission with low complexity but at the price of shortening the effective guard interval. This paper proposes a mechanism that jointly uses these two schemes for out-of band emission reduction. Moreover, the appropriate windowing duration design is proposed in terms of both the out-of-band emission suppression and throughput performance for all mandatory mode of IEEE 802.11af system. The proposed time-domain windowing design reduces the number of multiplier by 96.5%. Copyright © 2014 The Institute of Electronics, Information and Communication Engineers.
- リンク情報
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- DOI
- https://doi.org/10.1587/transcom.e97.b.875
- CiNii Articles
- http://ci.nii.ac.jp/naid/130003394684
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000342728100019&DestApp=WOS_CPL
- URL
- https://www.jstage.jst.go.jp/article/transcom/E97.B/4/E97.B_875/_pdf
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84897401463&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84897401463&origin=inward
- ID情報
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- DOI : 10.1587/transcom.e97.b.875
- ISSN : 0916-8516
- eISSN : 1745-1345
- CiNii Articles ID : 130003394684
- SCOPUS ID : 84897401463
- Web of Science ID : WOS:000342728100019