Semantic Scholar Open Access 2019 30 sitasi

A High Throughput Implementation of QC-LDPC Codes for 5G NR

Hao Wu Huayong Wang

Lihat Sumber DOI

Abstrak

Quasi-cyclic low-density parity-check (QC-LDPC) codes are the choice for data channels in the fifth generation (5G) new radio (NR). At the transmitter side, code bits from the QC-LDPC encoder are delivered to the rate matcher. The task of the rate matcher is to select an appropriate number of code bits via puncturing and/or repetition. Code bits that are not selected do not need to be encoded. At the receiver side, the de-rate matcher combines code bits of different transmission attempts and sends them to the QC-LDPC decoder. The output of the QC-LDPC decoder only needs to include necessary systematic bits. Unnecessary systematic bits and parity bits can be completely removed from the decoding process. Taking these considerations into account, a smaller sub-base matrix instead of a full-base matrix can be used in the encoding and decoding process. In this paper, we propose an efficient implementation of QC-LDPC codes for 5G NR. The full-base matrix is pruned before being used. Compared to the traditional schemes, the proposed scheme improves the throughput of QC-LDPC codes in 5G NR.

Topik & Kata Kunci

Computer Science

Penulis (2)

Hao Wu

Huayong Wang

Format Sitasi

APA MLA BibTeX

Wu, H., Wang, H. (2019). A High Throughput Implementation of QC-LDPC Codes for 5G NR. https://doi.org/10.1109/ACCESS.2019.2960839

Akses Cepat

Lihat di Sumber doi.org/10.1109/ACCESS.2019.2960839

Informasi Jurnal

Tahun Terbit: 2019
Bahasa: en
Total Sitasi: 30×
Sumber Database: Semantic Scholar
DOI: 10.1109/ACCESS.2019.2960839
Akses: Open Access ✓