Iterative receiver based on Kalman filter

Sangjoon Park, Hana Heo, Gyuyeol Kong, Sooyong Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The original form of the turbo equalizer is based on two maximum a posteriori probability (MAP) procedures. The MAP-based turbo equalizer using trellis diagram can significantly improve the bit error rate (BER) performance while it suffers from high computational complexity. Therefore, we propose a new suboptimal iterative turbo equalizer based on Kalman filtering framework in order to reduce high complexity of the MAP-based technique. The proposed receiver produces a posteriori information for a priori information of the channel decoder in the filtering step and obtains a priori information from the extrinsic information of the channel decoder. The proposed Kalman-based turbo equalizer operates in exactly the same way as the conventional Kalman equalizer. In the prediction step, we use the soft-valued extrinsic information of the channel decoder as a priori information of the desired signal to estimate and in the filtering step, calculate a posteriori information of the desired signal to estimate, which is a newly updated conditional probability when the a priori probability is given in the prediction step.

Original languageEnglish
Title of host publication54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
DOIs
Publication statusPublished - 2011 Oct 13
Event54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 - Seoul, Korea, Republic of
Duration: 2011 Aug 72011 Aug 10

Publication series

NameMidwest Symposium on Circuits and Systems
ISSN (Print)1548-3746

Other

Other54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
CountryKorea, Republic of
CitySeoul
Period11/8/711/8/10

Fingerprint

Equalizers
Kalman filters
Bit error rate
Computational complexity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Park, S., Heo, H., Kong, G., & Choi, S. (2011). Iterative receiver based on Kalman filter. In 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 [6026664] (Midwest Symposium on Circuits and Systems). https://doi.org/10.1109/MWSCAS.2011.6026664
Park, Sangjoon ; Heo, Hana ; Kong, Gyuyeol ; Choi, Sooyong. / Iterative receiver based on Kalman filter. 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011. 2011. (Midwest Symposium on Circuits and Systems).
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Park, S, Heo, H, Kong, G & Choi, S 2011, Iterative receiver based on Kalman filter. in 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011., 6026664, Midwest Symposium on Circuits and Systems, 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011, Seoul, Korea, Republic of, 11/8/7. https://doi.org/10.1109/MWSCAS.2011.6026664

Iterative receiver based on Kalman filter. / Park, Sangjoon; Heo, Hana; Kong, Gyuyeol; Choi, Sooyong.

54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011. 2011. 6026664 (Midwest Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Park S, Heo H, Kong G, Choi S. Iterative receiver based on Kalman filter. In 54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011. 2011. 6026664. (Midwest Symposium on Circuits and Systems). https://doi.org/10.1109/MWSCAS.2011.6026664