An Alamouti coded CP-FBMC-MIMO system with two transmit antennas

Abstract

In this paper, we propose an Alamouti coding for filter bank multicarrier (FBMC) with cyclic prefix (CP) for two transmit antennas, which can avoid the imaginary interference problem existing in the conventional FBMC with multi-antenna systems. Instead of performing Alamouti coding on original data symbols, we perform Alamouti coding on pre-processing signal at the transmitter in our proposed scheme. We show that our proposed scheme has fast single-symbol maximum-likelihood (ML) decoding and achieves full spatial diversity. Simulation results show that the proposed scheme can achieve the BER performance of Alamouti coding under both of the flat-fading channel and the frequency-selective channel. Therefore, it is an efficient Alamouti coding scheme for CP-FBMC systems with two transmit antennas.

创新点

在这篇文章中, 我们研究了基循环前缀和滤波器组多载波技术的多输入多输出系统(CP-FBMC-MIMO),并提出了这种系统的Alamouti编码方式。

我们提出的方案不仅可以实现快速的单符号最大似然解码, 而且能够获得全空间增益。在仿真中, 我们考虑两种衰落信道, 即平坦衰落信道和频率选择性衰落信道, 来模拟文章所提出的Alamouti编码的误码率性能。仿真结果表明, 本文所提的Alamouti编码对于CP-FBMC-MIMO系统是一种行之有效的编码方式。