LOW-COMPLEXITY ARCHITECTURE OF RAKE RECEIVER FOR MULTI-CODE CDMA SYSTEM

A new low-complexity architecture CDMA rake receiver for multi-code CD MA systems is proposed. It contains shared hardware blocks to reduce h ardware complexity. The hardware complexity of the proposed architectu re is compared with that of a conventional CDMA rake receiver in terms of the number of Walsh code channels. The result shows that our propo sed architecture has a 12 and 18.6% reduction in gate count when the n umber of Walsh code channels is 4 and 7, respectively.