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Performance Evaluation of Memory-less and Kalman-based Channel Estimation for OFDMA
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- Aronsson, Daniel (author)
- Uppsala universitet,Uppsala University
-
- Svensson, Tommy, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Sternad, Mikael, 1957 (author)
- Uppsala universitet,Uppsala University
- (creator_code:org_t)
- ISBN 9781424425174
- 2009
- 2009
- English.
- In: VTC Spring 2009 - IEEE 69th Vehicular Technology Conference; Barcelona; Spain; 26 April 2009 through 29 April 2009. - 1550-2252. - 9781424425174 ; , s. Art. no. 5073788-
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- The next generation wireless systems based onOrthogonal Frequency Division Multiple Access (OFDMA) needto operate in widely different deployment and usage scenarios. Thus, support for flexible resource allocation is important. In this paper we investigate the performance of different memory-less and memory-based channel estimators with different OFDMA subcarrier allocation schemes and different pilot patterns. We evaluate the performance in various fading environments and for different user terminal velocities. The results show that channel estimation can perform well enough for time-frequency localized resources as small as 22 channel symbols with two pilots in many important scenarios. The results provided can be used to identify appropriate subcarrier allocations for the next generation OFDMA based wireless systems.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Keyword
- Kalman filtering
- OFDMA
- channel estimation
Publication and Content Type
- kon (subject category)
- ref (subject category)
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