分组空码索引调制

Grouping space code index modulation

为提高空域索引调制技术的信息传输速率,提出分组空码索引调制(grouping space code index modulation,GSCIM)方案。结合空间调制(spatial modulation,SM)和码索引调制(code index modulation,CIM),利用分组思想增加调制信息比特、天线索引信息比特和伪随机(pseudo noise,PN)码索引信息比特。分析和仿真结果表明,当信息传输速率相同时,与其它索引调制方案相比,GSCIM方案可以至少节省一半的索引资源,具有更好的误比特率性能,随着信息传输速率的提高,这些优势更明显。

To improve the information transmission rate of spatial domain index modulation technology,a grouping space code index modulation(GSCIM)scheme was proposed.Spatial modulation(SM)and code index modulation(CIM)were combined and grouping ideas were utilized,so modulation information bits,antenna index information bits and pseudo noise(PN)code index information bits were increased.Results of analysis and simulation show that when the information transmission rates are the same,compared with other index modulation schemes,GSCIM scheme can not only save at least half of the index resources,but have better bit error rate performance,and as the information transmission rate improves,these advantages get more obvious.