Work

Non-Coherent Multi-User Detection Based on Expectation Propagation

Year: 2019

Type: conference-paper

Abstract: In this paper, we propose a novel soft-output multi-user detector for non-coherent multiple access with Grassmannian signaling under Rayleigh block fading. Our detector is based on expectation propagation (EP) approximate inference and has polynomial complexity in the number of users. A simplified version of this scheme coincides with a scheme based on soft minimum-mean-square-error (MMSE) estimation and successive interference cancellation (SIC). Both schemes, especially EP, produce accurate approximates of the true posterior. They outperform a baseline decoder based on projecting the received signal onto the subspace orthogonal to the interference in terms of both hard-detected symbol error rate and coded bit error rate.

Source: 2018 52nd Asilomar Conference on Signals, Systems, and Computers

DOI: 10.1109/ieeeconf44664.2019.9049073

Authors: Khac-Hoang Ngo, Maxime Guillaud, Alexis Decurninge, Sheng Yang, Subrata Sarkar, Philip Schniter

Institutions: Huawei Technologies (France), Laboratoire des signaux et systèmes, CentraleSupélec, The Ohio State University

Language: English

Topic: Advanced Wireless Communication Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W3013095215

FWCI: 1.623

Cites: 14

Cited by: 5

Related to: 10