A 360mW 105Mb/s DVB-S2 Compliant Codec based on 64800b LDPC and BCH Codes enabling SatelliteTransmission Portable Devices

📋 论文概要

该论文提出了一款符合DVB-S2标准的低功耗编解码器，基于64800比特LDPC和BCH码，实现了360mW功耗和105Mb/s数据率。解决了此前长LDPC码功耗过高（800mW-1020mW）而无法用于便携设备的问题。

💡 主要创新点

• 实现了DVB-S2标准下业界最低功耗（360mW）的编解码器，相比此前方案功耗降低超过50%。
• 首次将长LDPC码（64800b）用于便携设备，通过架构与电路级优化突破功耗瓶颈。

🏷 关键词

📄 原文摘要

Services compliant 2nd Generation Satellite Digital Video Broadcast (DVB-S2) [1] codec is presented. Previously published silicon implementations respecting this stringent standard reports power consumption between 800mW and 1020mW [5]. This large power consumption is related to long Low-Density Parity Check (LDPC) codes [2] and has always been a barrier to the adoption of long LDPC codes in wireless transmissions for portable devices. This silicon demonstrates a drastic reduction of power consumption when decoding HDTV frames and shows that long LDPC codes can also be used on portable devices to allow close-to-Shannon-limit transmissions. This chip includes a Forward Error Correction (FEC) block and a packet delineator, plus some extra blocks for functional auto-test.

👥 作者与机构

P. Urard1, L. Paumier2, V. Heinrich1, N. Raina3, N. Chawla3, 1

STMicroelectronics, Crolles, France, 2STMicroelectronics, Grenoble, France 3 STMicroelectronics, Noida, India The design of a full Broadcast + Interactive