A low-complexity block EP-based detector for iterative detection and decoding in unsourced random access

IF 0.7 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electronics Letters Pub Date : 2025-01-17 DOI:10.1049/ell2.70143

Jinyang Chen, Renhui Xu, Xiaonan Cui, Laixian Peng, Wendong Zhao, Jinwei Wang

引用次数: 0

Abstract

Here, a multi-user signal iterative detection and decoding scheme named LBEP based on block expectation propagation (BEP) is proposed for LDPC-coded two-phase unsourced random access (URA) scheme. In the iterative process, the approximation of matrix inversion is used to facilitate expectation propagation (EP). In addition, this idea is also applied to the double EP (DEP) scheme. The simulation results show that, in the two-phase URA scheme, the performance of the proposed LBEP scheme is similar to the BEP scheme for LDPC codes, but the complexity of the receiver is greatly reduced.

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来源期刊

Electronics Letters 工程技术-工程：电子与电气

CiteScore

2.70

自引率

0.00%

发文量

268

审稿时长

3.6 months

期刊介绍： Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews. Scope As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below. Antennas and Propagation Biomedical and Bioinspired Technologies, Signal Processing and Applications Control Engineering Electromagnetism: Theory, Materials and Devices Electronic Circuits and Systems Image, Video and Vision Processing and Applications Information, Computing and Communications Instrumentation and Measurement Microwave Technology Optical Communications Photonics and Opto-Electronics Power Electronics, Energy and Sustainability Radar, Sonar and Navigation Semiconductor Technology Signal Processing MIMO