Research Initiation: Coding for Noisy Modulation Channels

研究启动：噪声调制通道编码

• 批准号: 8908105
• 负责人: Khaled A. Abdel-Ghaffar
• 金额: $ 5.94万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-09-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8908105&HistoricalAwards=false
• 关键词: Research; Initiation; Coding; Noisy; Modulation

In modern transmission and recording channels, it is often required to map the data onto a sequence with special properties. These properties are dictated by various practical aspects such as self-clocking, limitations on the intersymbol interference, and bandwidth constraints. Since most channels are noisy, the transmitted data should have error correction capability as well. The classical coding schemes for noisy modulation channels are based on using two independently designed codes: one for error correction and the other for modulation. Although these two codes may be optimal with regard to their respective goals, the combined code may be far from optimal when used over the channel. The research studies the relation between modulation and error correction properties which will enable viewing these two properties inseparably from each other. Efficient codes designed specifically for noisy modulation channels then will be developed.

在现代传输和记录渠道中， 需要将数据映射到具有特殊 特性. 这些属性由各种实际的 诸如自时钟、符号间限制等方面 干扰和带宽限制。 由于大多数频道 有噪声时，传输的数据应具有纠错功能 能力也。 噪声环境下的经典编码方案 调制通道基于使用两个独立设计的 代码：一个用于纠错，另一个用于调制。 虽然这两个代码可能是最佳的，就其 在不同的目标下，组合代码可能远非最佳， 在频道上使用。 本研究探讨了 调制和纠错特性之间的关系， 使这两个属性彼此不可分割地查看。 专为噪声调制设计的高效码 渠道将得到发展。