spaital modulation是08年开始盛行的一种空间调制技术，他相比于v-blast,mrc等方式有了长足的进步。-Spatial modulation (SM) is a recently developedtransmission technique that uses multiple antennas.

这是另外一种方式的对于SM系统的性能分析，与传统的方式相比这种方式更加的简单，明了，利于阅读。-other way to analaysis the performance of SM。 it is queit simply than the tanditional ways

Abstract—A generalised spatial modulation (SM) scheme with multiple active transmit antennas, named as multiple activespatial modulation (MA-SM), is proposed in this paper. By allowing multiple transmitting antennas in the SM system to transmit

Trellis coded modulation (TCM) is a well known scheme that reduces power requirements without any bandwidth expansion. In TCM, only certain sequences of successive constellation points are allowed (mapping by set partitioning). The novel idea