A new insight into GAMP and AMP

• Main Authors: Liu, Lei, Li, Ying, Huang, Chongwen, Yuen, Chau, Guan, Yong Liang
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Expectation Propagation; Approximate Message Passing
• Online Access: https://hdl.handle.net/10356/151568
• Institution: Nanyang Technological University

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...