Paper Info
Title
Improved embedded parameter estimation for bit-interleaved coded modulation with iterative decoding
Abstract
Code-aided parameter estimation is considered for bit-interleaved coded modulation with iterative decoding (BICM-ID). The computational overhead caused by the estimation is minimized by embedding the parameter estimation into the iterative decoding. It is apparent that the performance of the estimation depends on the availability of accurate symbol a posteriori probabilities (SAPPs). Since the decoder computes bit a posteriori probabilities (BAPPs), the SAPPs are traditionally computed through a straightforward bit-to-symbol probability conversion. For advanced mappings which are optimized for BICM-ID, however, the latter method does not result in reliable SAPPs. Therefore, a new method is proposed and simulation results verify that the resulting iterative estimator-detector yields a close to perfectly synchronized performance.
Year
DOI
Venue
2005
10.1109/ICASSP.2005.1415753
ICASSP '05). IEEE International Conference
Keywords
Field
DocType
computational complexity,iterative decoding,minimisation,modulation coding,parameter estimation,probability,BICM,bit a posteriori probabilities,bit-interleaved coded modulation,bit-to-symbol probability conversion,code-aided parameter estimation,computational overhead,embedded parameter estimation,iterative decoding,iterative estimator-detector,symbol a posteriori probabilities
Overhead (computing),Mathematical optimization,Embedding,Computer science,A priori and a posteriori,Bit interleaved coded modulation,Minimisation (psychology),Estimation theory,Decoding methods,Computational complexity theory
Conference
Volume
ISSN
ISBN
3
1520-6149
0-7803-8874-7
Citations 
PageRank 
References 
2
0.42
8
Authors
2
Name
Order
Citations
PageRank
F. Simoens1645.90
Marc Moeneclaey256696.31