DocumentCode
401139
Title
Decision-directed channel estimation for supporting higher terminal velocities in OFDM based WLANs
Author
Kella, Tideya
Author_Institution
Secure Mobile Solutions, Infineon Technol. AG, Munich, Germany
Volume
3
fYear
2003
fDate
1-5 Dec. 2003
Firstpage
1306
Abstract
A channel estimation technique which allows the support of higher terminal velocities in OFDM based WLANs (HIPERLAN/2, IEEE 802.11a) is presented. After an initial channel estimation based on the preamble, the channel impulse response is tracked by means of detected and remodulated data symbols. A good performance is obtained in both line-of-sight (LOS) and nonline-of-sight (nLOS) environments with a reasonable receiver complexity.
Keywords
OFDM modulation; channel estimation; mobile radio; transient response; wireless LAN; HIPERLAN/2; IEEE 802.11a; OFDM based WLAN; channel impulse response; decision-directed channel estimation; higher terminal velocity; line-of-sight environment; nonLOS environment; orthogonal frequency division multiplexing; remodulated data symbol; wireless local-area network; Channel estimation; Degradation; Demodulation; Digital video broadcasting; Frequency domain analysis; Interpolation; OFDM modulation; Payloads; Telephony; Wireless LAN;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN
0-7803-7974-8
Type
conf
DOI
10.1109/GLOCOM.2003.1258449
Filename
1258449
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