ITR/SI: Multi-Antenna, Multi-User Communications

ITR/SI：多天线、多用户通信

• 批准号: 0112977
• 负责人: Mahesh Varanasi
• 金额: $ 35.1万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0112977&HistoricalAwards=false
• 关键词: ITR; SI; Multi; Antenna; User

Future generation mobile wireless communication systems (third generationand beyond) are expected to provide high data rates, accomodate highlymobile users, and support a wide variety of services including data, voice,video and interactive multimedia. Power (battery) limitations andthe scarcity of radio spectrum (relative to the ambitions of such services)will dictate the need for cellular networks in which these resourcesmust be used highly efficiently so as to support the continued growthin demand for wireless services into the future. Theessential infrastructure required at the physicallayer to fulfill this demand is a power and bandwidth efficient,multi-antenna, multi-user wireless communications technology.The investigators of this project will develop several key aspects of atheory of multi-user, multi-transmit antenna communication through a studyof high-performance, interference resistant receivers, signature sequencedesigns and multi-user signal constellation optimization. Their goal is torealize, through simple system design, the power and spectral efficiencytrade-offs that are achievable for multi-antenna wireless communicationsover fading channels. While emphasizing fundamental limits, theinvestigators will also focus on complexity constrained systems as well.They will develop results in the theory of multi-user detection andsignature sequence optimization for multiple receive antennas for overloadedCDMA systems. Generalization of these results will be pursued to codedmodulation and multiple transmit (and receive) antenna systems in order tofurther improve the performance and/or achievable spectral efficienciesthrough more sophisticated signaling strategies combined with sub-optimal,complexity-constrained, high-performance multi-user decoding methods.

未来一代移动无线通信系统（第三代及以后）预计将提供高数据速率，适应高度移动的用户，并支持各种服务，包括数据、语音、视频和交互式多媒体。功率（电池）限制和无线电频谱稀缺（相对于此类服务的雄心）将决定对蜂窝网络的需求，其中必须高效地使用这些资源，以支持未来对无线服务需求的持续增长。满足这一需求的物理层所需的基本基础设施是功率和带宽高效、多天线、多用户无线通信技术。该项目的研究人员将开发多用户、多发射天线通信理论的几个关键方面通过对高性能、抗干扰接收器、签名序列设计和多用户信号星座优化的研究。他们的目标是通过简单的系统设计，实现衰落信道上多天线无线通信可实现的功率和频谱效率权衡。在强调基本限制的同时，研究人员还将关注复杂性受限的系统。他们将在过载 CDMA 系统的多接收天线的多用户检测和签名序列优化理论方面取得成果。这些结果将被推广到编码调制和多发射（和接收）天线系统，以便通过更复杂的信令策略与次优、复杂性受限、高性能多用户相结合，进一步提高性能和/或可实现的频谱效率解码方法。