A Simple Downlink Diversity Transmit Scheme for Cooperative Base Stations

摘要：

In this paper, a simple downlink transmit scheme joint beamforming (BF) with space-time block coding (STBC) is proposed for cooperative base stations (BS). By deriving the equivalent signal-to-noise ratio (SNR) at the receiver, we first obtain the optimal BF weight vectors and the allocated power coefficients in terms of maximizing the statistical mutual information. Then, based on the moment generation function (MGF) approach and Gauss-Chebyshev numerical quadrature, we present a method to evaluate the average symbol error rate (SER) of the system with the new scheme. Finally, computer simulation results demonstrate the validity of the performance analysis and the superiority of the proposed transmit scheme.

关键词： Beamforming Space-time block coding Transmit Scheme Mutual information

作者: Min Lin Jian Ouyang Yingtao Niu

作者单位: Nanjing Telecommunication Technology InstituteNanjing, 210007, China College of Computer Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing, Nanjing Telecommunication Technology Institute Nanjing, 210007, China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）