【摘要】 空时编码是实现宽带无线数据通信的一种极有潜力的技术.本文基于空时分组码和对角分层空时码的各自特点提出了一种内接编码方案.这种编码方式可以在既定的发射天线数下,根据信道环境的优劣,通过调整内接码中空时分组码维数来控制系统误码率性能和系统容量.仿真结果表明,用该内接码可以对应于不同的误码率要求,尽可能地提高系统容量.更多还原

【Abstract】 Space-time coding is a promising technique for high data-rate wireless communications. A scheme of inner concatenated coding based on the characteristics of space-time block codes and diagonally-layered space-time codes is presented. With this inner concatenated codes, the performance of BER(bit error ratio) and system capacity can be controlled by adjusting the dimension of STBC(space-time block codes) in the inner concatenated codes according to the channel parameters. Simulation results show that the use of inner concatenated codes results in the largest system capacity according to different demands of the system.更多还原