Abstract
This paper focuses on the performance comparison RAKE receivers used in the Ultra wide-Band system. The simulations are based on implementation of the complete system using direct sequence spread spectrum approach. The results are obtained for the three types of RAKE receiver models, namely, All(A) RAKE, Selective (S) RAKE and Practical(P) RAKE. The driven results are based on the four cases presented in IEEE P802.15 propagation channel model.