机构地区: 厦门大学信息科学与技术学院通信工程系
出 处: 《厦门大学学报(自然科学版)》 2004年第6期793-796,共4页
摘 要: 空时码是无线通信中一种新的信道编码技术.结合空间分集,空时编码在不增加信道带宽的情况下能提高系统的传输速率,达到良好性能.简要介绍了空时码技术,讨论了空时块码译码的简化算法,并在DSP上实现.结果证明,在多相调制下使用简化的译码算法,能减少计算复杂度,节约运行时间,提高硬件的运行速度. Space-time coding is a promising channel coding technique for wireless communications.Combined with spatial diversity,space-time coding can provide high data rates and good performance without extra bandwidth demand.In this paper,we briefly introduce the space-time coding technology,and a simplified decoding algorithm of Space-Time Block Codes(STBC)is discussed and realized by DSP.The result shows that the simplified algorithm for MPSK can reduce the computation complexity,save the run time and improve the run speed of hardware.