NDLI: Multi-element antenna with close spacing for highly mobile OFDM systems

Content Provider	IEEE Xplore Digital Library
Author	Ting-Li Liu Wei-Ho Chung Li-Sheng Chen Hongke Zhang Sy-Yen Kuo
Copyright Year	2013
Description	Author affiliation: Coll. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China (Hongke Zhang) \|\| Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan (Ting-Li Liu; Li-Sheng Chen; Sy-Yen Kuo) \|\| Res. Center for Inf. Technol. Innovation, Taipei, Taiwan (Wei-Ho Chung)
Abstract	In this paper, we consider employing a multi-element antenna (MEA) with close spacing to tackle the challenging channel estimation (CE) in highly mobile OFDM systems. Instead of large spacing for diversity, we propose to place the adjacent elements with one symbol distance in the moving direction to observe the quasi-duplicated channels in temporal difference of one symbol period. In exploiting the quasi-duplicated channels, we developed a novel CE-symbol detection (SD) iteration that cooperates with the standardized comb-type pilots to track fast varying channels. From simulation results, we show the proposed system outperforms the conventional receiver of two antennas with spatial diversity in highly mobile channels as long as the mutual coupling effects with the close-spaced elements are restricted.
Sponsorship	IEEE Commun. Soc.
Starting Page	3134
Ending Page	3139
File Size	1329331
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555063
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antennas OFDM comb-type pilot assisted multi-element antenna MEA channel estimation mobile OFDM
Content Type	Text
Resource Type	Article

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