Improved channel estimation for iterative receivers
(2003) IEEE Global Telecommunications Conference, 2003 1. p.257-261- Abstract
- In iterative receiver structures, soft information
becomes available after the decoding stage in the first iteration. This information is used to enhance the quality of the channel estimates for the next iteration. Channel estimation plays a crucial role in multi-user detection because the effective identification sequence for each user strongly depends on the channel characteristics. To combine deterministic pilot information with soft information, a generalized estimator based on the linear minimum mean square error (LMMSE) principle is derived. We present the special case of orthogonal frequency division multiplexing (OFDM) based multi-carrier code division multiple access (MC-CDMA) in detail and provide simulation... (More) - In iterative receiver structures, soft information
becomes available after the decoding stage in the first iteration. This information is used to enhance the quality of the channel estimates for the next iteration. Channel estimation plays a crucial role in multi-user detection because the effective identification sequence for each user strongly depends on the channel characteristics. To combine deterministic pilot information with soft information, a generalized estimator based on the linear minimum mean square error (LMMSE) principle is derived. We present the special case of orthogonal frequency division multiplexing (OFDM) based multi-carrier code division multiple access (MC-CDMA) in detail and provide simulation results.
The presented channel estimation algorithm can be also applied to direct sequence (DS)-CDMA and multi-input multi-output (MIMO) systems. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1039786
- author
- Zemen, Thomas ; Loncar, Maja LU ; Wehinger, Joachim ; Mecklenbräuker, Christoph and Mueller, Ralf
- organization
- publishing date
- 2003
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- IEEE Global Telecommunications Conference, 2003. GLOBECOM '03.
- volume
- 1
- pages
- 257 - 261
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE Global Telecommunications Conference, 2003
- conference location
- San Francisco, CA, United States
- conference dates
- 2003-12-01 - 2003-12-05
- external identifiers
-
- scopus:0842279588
- ISBN
- 0-7803-7974-8
- DOI
- 10.1109/GLOCOM.2003.1258241
- language
- English
- LU publication?
- yes
- id
- 14df9988-a27b-4236-963b-49eab7a7d855 (old id 1039786)
- date added to LUP
- 2016-04-04 10:20:26
- date last changed
- 2022-01-29 20:09:54
@inproceedings{14df9988-a27b-4236-963b-49eab7a7d855, abstract = {{In iterative receiver structures, soft information<br/><br> becomes available after the decoding stage in the first iteration. This information is used to enhance the quality of the channel estimates for the next iteration. Channel estimation plays a crucial role in multi-user detection because the effective identification sequence for each user strongly depends on the channel characteristics. To combine deterministic pilot information with soft information, a generalized estimator based on the linear minimum mean square error (LMMSE) principle is derived. We present the special case of orthogonal frequency division multiplexing (OFDM) based multi-carrier code division multiple access (MC-CDMA) in detail and provide simulation results.<br/><br> The presented channel estimation algorithm can be also applied to direct sequence (DS)-CDMA and multi-input multi-output (MIMO) systems.}}, author = {{Zemen, Thomas and Loncar, Maja and Wehinger, Joachim and Mecklenbräuker, Christoph and Mueller, Ralf}}, booktitle = {{IEEE Global Telecommunications Conference, 2003. GLOBECOM '03.}}, isbn = {{0-7803-7974-8}}, language = {{eng}}, pages = {{257--261}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Improved channel estimation for iterative receivers}}, url = {{https://lup.lub.lu.se/search/files/5515815/1039792.pdf}}, doi = {{10.1109/GLOCOM.2003.1258241}}, volume = {{1}}, year = {{2003}}, }