Adaptive Bandwidth-Efficient Coding for Nonstationary Channels

非平稳信道的自适应带宽高效编码

• 批准号: 9016276
• 负责人: Stephen Wicker
• 金额: $ 10.15万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-15 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9016276&HistoricalAwards=false
• 关键词: Adaptive; Bandwidth; Efficient; Coding; Nonstationary

The principal investigator (PI) will study the development of adaptive error control algorithms for bandwidth-limited nonstationary communication channels. These algorithms will be based on trellis coded modulation systems that have been modified to make use of a feedback channel. The feedback channel allows for the flow of channel state information from the receiver to the transmitter. The transmitter uses this information to reconfigure data structures in accordance with variations in channel noise and attenuation. Three basic questions will be considered in the development of the adaptive algorithms. First, how can the receiver derive channel state information from received data blocks? Secondly, how can the receiver use the feedback channel to report this information to the transmitter? Finally, how is the transmitter to respond to this information? Adaptive schemes will be developed, analyzed and simulated for a variety of channels.

主要研究者（PI）将研究 带宽受限的自适应差错控制算法 非固定通信信道。 这些算法将是 基于已经被修改的网格编码调制系统 来利用反馈通道。 反馈通道允许 信道状态信息从接收机到 发送器 发射机利用这些信息重新配置 根据信道噪声的变化的数据结构， 衰减 本报告将讨论三个基本问题， 自适应算法的发展。 第一，如何能 接收机从接收数据中导出信道状态信息 街区？ 第二，接收方如何使用反馈信道 向发射机报告这个信息最后， 发送器对该信息做出响应？适应性方案将 可以针对各种渠道进行开发、分析和模拟。