Blind Multiuser Detector overaMobile Communication Channewitht ISI
Takakazu Sakai · 2006
Blind adaptive linear receivers fordirect sequence intersymbol interference (ISI) duetomultipath. Thespatial code-division multiple access (DS-CDMA) system arepromising signature duetousinganantenna array isalsotakeninto techniques forinterference suppression andcanbeusedinthe consideration. Theproposed methodprovides theestimation situation whereatraining sequence isnotavailable. o Thispaperdescribes amethodonblind estimation forthe ofthecomposite signatures consistig ofthechannel andthe DS-CDMAsignal whosetemporal signature waveform hasin-SS.Itisalsoshownthattheperformance ofSINRcanbe tersymbol interference duetomultipath. Thespatial signature improved withusing anantenna array. duetousing anantennaarrayisalsotakenintoconsideration. Theproposed method provides theestimation ofthecomposite II.SYSTEMMODEL channel consisting oftheunknowntransmission channel and spatial signature. Itisalso shownthat theperformance ofsignalConsider aBPSKDS-CDMAsystem withK users. We as- tointerference andnoise ratio canbeimproved withusing an sumeasynchronous system atthedownlink channel. Thekth antenna array. ~~~~~~~~~~~~~white