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We present a channel estimation method for coherent detection of multicarrier signals which is based on the a posteriori probability calculation algorithm (APP estimator). A two-dimensional channel estimation is performed by applying a concatenation of two one-dimensional APP estimators. The combination with an outer soft in/soft out channel decoder allows one to further improve the bit error rate by means of iterative estimation and decoding. The robustness of the new channel estimator permits one to reduce the number of pilot symbols which are required as phase references for coherent detection. It is readily applicable to current multicarrier systems (e.g. DVB-T) without changing the transmission format. A combination with an inner convolutional code is suggested to further improve the performance
Published in:
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
(Volume:2
)
Date of Conference: 2000
- Page(s):
- 741 - 745 vol.2
- Meeting Date :
- 27 Nov 2000-01 Dec 2000
- Print ISBN:
- 0-7803-6451-1
- INSPEC Accession Number:
- 6939440
- Conference Location :
- San Francisco, CA
- Digital Object Identifier :
- 10.1109/GLOCOM.2000.891238
- Product Type:
- Conference Publications
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