High-Throughput Software-Defined LDPC Encoder and Decoder With x86-Based Data-Level Parallelism

IF 7.1 2区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Vehicular Technology Pub Date : 2024-09-18 DOI:10.1109/TVT.2024.3452718

Sangbu Yun;Jeongwon Choe;Youngjoo Lee

引用次数: 0

Abstract

In order to realize the high-throughput software-defined low-density parity-check (SD-LDPC) encoder and decoder for 5G communication systems, this paper presents various algorithm-software co-optimization techniques allowing advanced data-level parallelism. We first develop efficient mapping schemes to describe the contemporary 5G LDPC processing with recent x86 single instruction multiple data (SIMD) instructions. Then, the data rate of 5G SD-LDPC processing is remarkably improved by introducing SIMD-aware algorithm-level innovations, e.g., parallel efficient encoding, minimizing branch instructions, approximate check-node processing, and latency-oriented optimization. Compared with the state-of-the-art approaches, experimental results show that the proposed techniques successfully enhance the speed of encoding and decoding operations by 8.1 and 1.5 times, respectively, leading to the high-speed and fully-flexible software-defined radio (SDR) solutions for 5G systems.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于 x86 数据级并行性的高吞吐量软件定义 LDPC 编码器和解码器

为了实现5G通信系统的高吞吐量软件定义低密度奇偶校验（SD-LDPC）编码器和解码器，本文提出了各种算法-软件协同优化技术，允许先进的数据级并行性。我们首先开发了有效的映射方案来描述当代5G LDPC处理与最新的x86单指令多数据（SIMD）指令。然后，通过引入simd感知的算法级创新，例如并行高效编码、最小化分支指令、近似检查节点处理和面向延迟的优化，显著提高了5G SD-LDPC处理的数据速率。实验结果表明，与现有的方法相比，所提出的技术成功地将编码和解码操作的速度分别提高了8.1倍和1.5倍，从而为5G系统提供了高速和全灵活的软件定义无线电（SDR）解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

IEEE Transactions on Vehicular Technology 工程技术-电信学

CiteScore

6.00

自引率

8.80%

发文量

1245

审稿时长

6.3 months

期刊介绍： The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.