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Title: A new insight into GAMP and AMP
Authors: Liu, Lei
Li, Ying
Huang, Chongwen
Yuen, Chau
Guan, Yong Liang
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Liu, L., Li, Y., Huang, C., Yuen, C. & Guan, Y. L. (2019). A new insight into GAMP and AMP. IEEE Transactions On Vehicular Technology, 68(8), 8264-8269.
Journal: IEEE Transactions on Vehicular Technology
Abstract: A concise expectation propagation (EP) based message passing algorithm (MPA) is derived for the general measurement channel. By neglecting some high-order infinitesimal terms, the EP-MPA is proven to be equivalent to the Generalized Approximate Message Passing (GAMP), which exploits central limit theorem and Taylor expansion to simplify the belief propagation process. Furthermore, for additive white gaussian noise measurement channels, EP-MPA is proven to be equivalent to the AMP. Such intrinsic equivalence between EP and GAMP/AMP offers a new insight into GAMP and AMP via a unified message passing rule for non-linear processing, and may provide clues towards building new MPAs in solving more general non-linear problems.
ISSN: 0018-9545
DOI: 10.1109/TVT.2019.2926229
Rights: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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