Diversity space-time modulation for MIMO wireless communication systems with fading channels

具有衰落信道的 MIMO 无线通信系统的分集空时调制

• 批准号: 352578-2008
• 负责人: Zhang, JianKang
• 金额: $ 1.63万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=459279
• 关键词: Diversity; space; time; modulation; MIMO

The recent arrival of the Information Age has created an explosive demand for knowledge and information exchange in our society. This demand has triggered off an enormous expansion in wireless communications in which severe technical challenges, including the need of transmitting speech, data and video at high rates in an environment rich of scattering, have been encountered. A recent development in wireless communication systems is the multi-input multi-output (MIMO) wireless link which, due to its potential in meeting these challenges caused by fading channels together with power and bandwidth limitations, has become a very important area of research. The importance of MIMO communications lies in the fact that they are able to provide a significant increase in capacity over a single antenna system. To take advantage of the MIMO communication channel and combat fading and cross-talk, a space-time block code (STBC) has been developed by spacing the transmitter antennas sufficiently and introducing a code for the transmitted symbols distributed over transmitter antennas (space) and symbol periods (time). The research program presented in this proposal is to develop a first-rate research and training environment for the MIMO wireless communication systems. The proposal aims at establishing a novel theory and solving the following three open and challenging problems: (1) The design of an optimal STBC for the MIMO systems with the optimal coherent receiver (i.e., the channel knowledge is available at the receiver); (2) The design of an optimal STBC for multi-input single-output systems with simple coherent receivers. Such a design is often useful in mobile downlink communications; (3) The systematic design of a STBC for the unique identification of the MIMO fading channels when channel information is completely unavailable. The proposed research program will create an essential research and training environment appropriate to impart requisite skills to highly qualified personnel (HQP) who will fulfill the needs of Canadian academia and wireless communication industries. The program will attract talented and experienced researchers and HQP in the world and retain them in Canada.

信息时代的最近到来为我们社会中的知识和信息交流带来了爆炸性的需求。这种需求引发了无线通信的巨大扩展，在这种无线通信中，在富有散射的环境中，遇到较高速度传输语音，数据和视频的严重挑战。无线通信系统的最新发展是多输入的多输出（MIMO）无线链接，由于它有可能应对褪色渠道以及功率和带宽限制引起的这些挑战的潜力，因此已成为非常重要的研究领域。 MIMO通信的重要性在于，它们能够在单个天线系统上提供大幅增加的容量。为了利用MIMO通信通道和战斗褪色和串扰，通过充分间隔发射器天线并为分布在发射机天线（空间）和符号周期（时间）的传输符号引入代码，从而开发了时空块代码（STBC）。本提案中提出的研究计划是为MIMO无线通信系统开发一流的研究和培训环境。该提案旨在建立一个新颖的理论并解决以下三个开放且具有挑战性的问题：（1）具有最佳相干接收器的MIMO系统的最佳STBC设计（即，在接收器上可以使用频道知识）； （2）具有简单相干接收器的多输入单输出系统的最佳STBC设计。这样的设计通常在移动下行链路通信中很有用。 （3）当通道信息完全不可用时，STBC的系统设计用于MIMO褪色通道的独特识别。拟议的研究计划将创建一个基本的研究和培训环境，以便将必要的技能传授给高度合格的人员（HQP），他们将满足加拿大学术界和无线通信行业的需求。该计划将吸引世界上有才华的研究人员和HQP，并将其保留在加拿大。