Design of multiple-input multiple-output sytems for future wireless networks

近年来，随着通信理论和无线电技术的发展，多天线系统作为一种有效的对抗衰落和降低信道干扰影响的技术引起了人们的极大兴趣。近年来，为了改善多输入多输出(MIMO)系统的接收信号质量和提高无线链路的传输速率，在MIMO系统框架内提出了许多建议。从信号质量的角度来看，众所周知，与单天线系统相比，接收发送数据的多个副本提高了系统性能。从信道容量的角度来看，已经证明多个天线具有显著提高可实现的数据速率的潜力。在本方案中，我们将研究MIMO系统在无线自组织网络中的性能。在拟议的研究中，我们计划专注于为MIMO自组织网络提供严格和准确的分析。这将包括对物理和媒体接入控制层设计问题的研究。

The recent development of communication theory and radio technology has intensified the interest of multi-antenna systems as an effective technique to combat fading and reduce the effect of channel interference. Recently, many proposals within the frame work of multiple-input multiple-output (MIMO) systems have been introduced in order to improve the received signal quality and increase the transmission rates over wireless links. From the signal quality point of view, it is known that the reception of multiple copies of the transmitted data improves the system performance relative to single antenna systems. From the channel capacity point of view, it has been demonstrated that multiple antennas have the potential to dramatically increase the achievable data rates. In this proposal, we will investigate the performance of MIMO systems in wireless ad hoc networks. In the proposed research, we plan to focus on providing rigorous and accurate analyses for MIMO ad hoc networks.  This will include study of both physical and medium access control layer design issues.