单载波块传输系统及其均衡技术的研究

Study of the Single Carrier Block Transmission System and Its Equalization Techniques

近年来,多载波OFDM系统因其均衡简单且能有效地抗多径干扰而受到广泛地研究。随着研究的深入,发现单载波系统也有类似的均衡办法与优点。介绍一种系统,称为单载波块传输系统,并研究了其各种均衡办法,比较了它们的性能与复杂度。当采用信道矩阵扩展技术或重叠相加技术,并采用最小均方误差均衡时,该系统有着良好的抗多径性能和较低的计算复杂度。

Multicarrier Orthogonal frequency-division multiplexing （OFDM） Systems have been widely researched in recent years because of its good anti-multipath characteristic when easily equalized. With the development of research, single carrier transmission systems are found with similar equalization techniques and superiorities. A new system, named single carrier block transmission system, is introduced, variable equalization techniques are developed and the performance and complexities are compared. This system characterized with good anti-multipath performance and low complexities when the channel matrix extending technique or overlao-adding technique and Minimum Mean Square Error equalization are employed.