On the Combining of Correlated Random Measures with Application to Graph-Based Receivers.

Knievel, Christopher, Hoeher, Peter and Auer, Gunther (2012) On the Combining of Correlated Random Measures with Application to Graph-Based Receivers. Ieee Communications Letters, 16 (12). pp. 1996-1999. DOI 10.1109/lcomm.2012.102612.121814.

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Abstract

Nowadays, message combining is an essential component in most digital communication systems. Correlation between random measures has a significant impact on the combining process. In order to provide the best estimate after combining, correlation must be considered. In many applications correlation is obvious, e. g. correlation in the time, frequency, and/or spatial domain of a radio channel. In other cases, correlation is more concealed. In this paper, two methods to combine correlated random values are presented and applied to a graph-based iterative receiver. It is explained, why correlation in the message exchange arises and how it can be taken into account in the message combining step. Simulation results are provided showing the performance gains when correlation is considered.

Document Type: Article
Keywords: Correlation, Channel estimation, Receiving antennas, Complexity theory, Bit error rate, Random variables
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1109/lcomm.2012.102612.121814
ISSN: 1089-7798
Projects: Future Ocean
Date Deposited: 14 May 2014 09:55
Last Modified: 31 Jul 2019 06:07
URI: http://oceanrep.geomar.de/id/eprint/24064

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