@inproceedings{fb432dad5c824a23be34feaf88894c34,
title = "Iterative channel estimation, detection, and decoding in large CDMA systems",
abstract = "The large system analysis of randomly spread direct-sequence code-division multiple-access systems operating over frequency-selective fading channels is considered. Iterative multiuser detection and decoding (MUDD) based on generalized posterior mean estimation and single-user sum-product decoding is assumed to be used at the receiver. The channel state information (CSI) at the MUDD is mismatched and obtained by a linear channel estimator whose initial decisions are iteratively refined with the help of information feedback provided by the MUDD. Furthermore, a new training method by means of probability-biased signaling is proposed. The results indicate that in the large system limit and under certain threshold loads, a near single-user performance with perfect CSI can be achieved using a vanishing training overhead. It is also found that for the considered setups, the iterative linear minimum mean square error based channel estimator is near optimal for relatively slowly time-varying multipath fading channels.",
author = "Mikko Vehkaper{\"a} and Keigo Takeuchi and M{\"u}ller, \{Ralf R.\} and Toshiyuki Tanaka",
year = "2010",
month = nov,
day = "29",
doi = "10.1109/ISTC.2010.5613863",
language = "English",
isbn = "978-1-4244-6744-0",
series = "International Symposium on Turbo Codes and Iterative Information Processing",
publisher = "IEEE Institute of Electrical and Electronic Engineers",
pages = "16--23",
booktitle = "6th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2010",
address = "United States",
note = "6th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2010 ; Conference date: 06-09-2010 Through 10-09-2010",
}