ITR/SII: A Unified Approach to Communication in Space and Time

对宽带无线数据业务需求的爆炸性增长已经强调了低复杂性、带宽有效的通信技术对于多径无线电信道的重要性。 最近的信息论结果表明，部署多个天线的发射机和接收机可以显着增加无线信道的容量。为了实现这种方法的全部潜力，重要的是开发新的天线设计和低复杂度的信号处理技术，更充分地利用多输入/多输出无线电channel.The项目的目的是提高无线通信系统的性能，通过联合优化天线阵列的几何形状，编码和调制，和接收机处理的空时结构。解决了四个一般性问题：（1）新的天线阵列的设计灵感来自信息论;（2）空时星座的设计，实现全分集和保持信道容量;（3）低复杂度的空时编码方法的基础上多级串行级联;和（4）新的可扩展的接收机架构联合迭代空时解码和阵列处理。拟议的研究是通信，信号处理和RF天线设计的跨学科努力。这项工作的最终目标是提高频谱效率，降低无线通信系统的功耗要求。

0121389HughesThe explosive growth in demand for broadband wireless data services has underscored the importance of low-complexity, bandwidth-efficient communication techniques for multipath radio channels. Recent information theoretic results have demonstrated that deploying multiple antennas at both the transmitter and receiver can dramatically increase the capacity of wireless channels. In order to realize the full potential of this approach, it is important to develop new antenna designs and low-complexity signal processing techniques that more fully exploit the space-time structure of multi-input/multi-output radio channels.The aim of this project is to improve the performance of wireless communication systems by jointly optimizing the antenna array geometry, coding and modulation, and receiver processing. Four general issues are addressed: (1) design of new antenna arrays inspired by information theory; (2) design of space-time constellations that achieve full diversity and preserve channel capacity; (3) low-complexity space-time coding methods based on multilevel serial concatenation; and (4) new scalable receiver architectures for joint iterative space-time decoding and array processing. The proposed research is an interdisciplinary effort in communications, signal processing, and RF antenna design. The ultimate goal of this work is to increase spectral efficiency and reduce the power requirements of wireless communication systems.