.png){kind=icon}
返回
Channel coding for 4G systems with adaptive modulation and coding
.png){kind=icon}
PRE
AI
DOI：10.1109/MWC.2002.998517.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Future 4G mobile systems, whether evolutionary (e.g., evolutions of WCDMA and cdma2000) or based on technology such as OFDM applied to a wide-area environment, can achieve very large average user throughputs by using adaptive modulation and coding (AMC) instead of fixed modulation (e.g., QPSK) and power control. This article discusses the impact of the underlying channel coding in 4G systems with AMC. It is shown that 3G-style turbo coding can provide a 0.5-4 dB link gain over 256-state convolutional codes, depending on the frame size, modulation, and channel. The link gains from channel coding (or other techniques) do not directly translate into throughput gains for AMC, but can still be expected to improve throughput significantly. A method of generating soft information for higher order modulations based on reuse of the turbo decoding circuitry is also provided.
Keyword:
TURBO CODES
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
11.5
论文数:
2.7K
被引数:
1.3W
机构
暂无机构信息
引用论文
.png){kind=icon}
The Atraumatic Restorative Treatment (ART) Technique: Does It have a Place in Everyday Practice?
PREAI
分享收藏 没有更多内容
没有更多内容