Abstract
We evalute impact of spreading bandwidth expansion on DS-CDMA reverse link by computer simulation with data rate and the number of the propagation paths as parameters. The evaluted bandwidths of spreading are 1.25,5,10,20MHz. As spreading bandwidth increases, the capasity improves at least from 15% to 22%. There are two reasons, one is a propagation paths increasing effect and the other is received interference power smoothing effect. It was also shown that the reverse link capasity is improved by spreading bandwidth expansion under non-continuous transmit user condition.
