Tree-structured generation of orthogonal spreadingcodes with different lengths for forward link of DS-CDMA mobile radio
Fumiyuki Adachi, Mamoru Sawahashi, K. Okawa · Electronics Letters · 1997
Tree-structured generation of orthogonal spreading codes with different lengths is presented for orthogonal multiplexing of forward-link code-channels of different data rates in direct sequence code division multiple access DS-CDMA mobile radio. The bit error rate performance under a multi-user environment suffering multipath Rayleigh fading is evaluated by computer simulation.