作者: Yukihiko Okumura , Koichi Okawa , Koji Ohno , Shinji Uebayashi , Mamoru Sawahashi
DOI:
关键词:
摘要: A DS-CDMA transmission method capable of improving the accuracy channel estimation using pilot symbols by eliminating cross-correlation between inserted into code channels in CDMA multiplexing carrying out fast signal transmission. In each frame assembler, symbols, which are used for coherent detection, coded information data on at fixed intervals, and then is modulated modulator. The from modulator spread spreading modulator, a code, whereas different codes assigned to respective channels. signals summed up adder be transmitted.