US-United Arab Emirates Cooperative Research: Space-Time Coding with Antenna Selection

0217549 Duman描述：该奖项是为了表彰由亚利桑那州坦佩的亚利桑那州立大学电气工程系F.Tolga Duman教授和阿拉伯联合酋长国沙迦美国大学(AUS)电气工程系Ali Ghrayeb博士共同开展的一个合作项目。他们的研究涉及在无线通道上提供语音和数据服务。结果表明，对于准静态衰落信道上的多发射多接收天线系统，在天线选择的情况下，无论底层的空时码是什么，其分集阶数都与完全复杂的系统相同。在这个项目中，他们计划：将他们早期的结果推广到各种现实衰落信道模型(例如，块衰落、频率选择性衰落)上的空时码天线选择原则的情况，当使用天线选择时，进行性能分析，并制定空时码的最佳码设计原则，考虑针对多个天线使用和设计Turbo编码调制方案和低密度奇偶校验码，并解决该背景下的天线选择问题，以及当使用天线选择时，研究空时编码正交频分复用(Ofdm)系统(将频率选择性衰落信道转换为频率平坦信道)。这两位科学家从信道编码的角度研究了这个问题，并产生了一些初步的有希望的结果。适用范围：在无线信道上传输语音和数据服务容易受到衰落和干扰等多种损害。“多样性”是对抗衰落带来的不利影响的最有效方式。该研究试图通过在接收器处使用天线选择来简化接收器的复杂性，因为只需要一个接收器电路，从而大大降低了复杂性。杜曼博士目前正在他的研究所进行无线通信编码和无线通信智能天线的研究。这个项目将通过与Ghrayeb博士(澳大利亚大学的一名约旦教员)的互动来帮助他目前的研究。Ghrayeb将在夏季访问亚利桑那州立大学，Duman将在寒假期间访问位于沙迦的美国大学，以继续该项目。拟议的工作还将对亚利桑那州立大学和沙迦美国大学产生教育影响，并将导致这两个机构的传播小组继续合作。研究成果将被纳入两所学院的教材中。

0217549DumanDescription: This award is for support of a cooperative project by Professor F. Tolga Duman, Department of Electrical Engineering, Arizona State University, Tempe, Arizona and Dr. Ali Ghrayeb, Department of Electrical Engineering at the American University of Sharjah (AUS) in Sharjah, United Arab Emirates. Their research deals with providing voice and data services over the wireless channel. They have shown that for a multiple transmit multiple receiver antenna system over a quasi-static fading channel, with antenna selection, regardless of the underlying space-time code, the diversity order remains the same as that of the full complexity system. In this project they plan to: extend their earlier results to the case of antenna selection principles for space-time codes over various realistic fading channel models (e.g., block fading, frequency selective fading), conduct performance analysis and develop optimal code design principles for space-time codes when antenna selection is employed, consider the use and design of turbo coded modulation schemes and low-density parity check codes for multiple antennas and address the antenna selection issues in that context, and study space-time coded orthogonal frequency division multiplexing (OFDM) systems (to convert the frequency selective fading channel into a frequency flat one) when antenna selection is employed. The two scientists have studied the problem from a channel coding perspective and produced some initial promising results. Scope: Transmitting voice and data services over the wireless channel is prone to several impairments such as fading and interference. "Diversity" is a most effective way of combating the adverse effects of fading. The research seeks to simplify the receiver complexity by employing antenna selection at the receiver that results in a great reduction in complexity, as only one receiver circuit is needed. Dr. Duman is presently carrying out research at his institute on coding for wireless communications and on smart antennas for wireless communications. This project will help his current research through the interaction with Dr. Ghrayeb (a Jordanian faculty member at AUS). Ghrayeb will visit Arizona State University during summers and Duman will visit the American University in Sharjah during winter break to continue the project. The proposed work will also have an educational impact both at ASU and the American University of Sharjah, and will result in a continued collaboration between the communications groups of the two institutions. The research results will be incorporated in educational material at both institutes.