Joint Iterative Power Allocation and Interference Suppression Algorithms for Cooperative DS-CDMA Networks

Date Added: Mar 2010
Format: PDF

This paper presents joint iterative power allocation and interference suppression algorithms for DS-CDMA networks which employ multiple relays and the amplify and forward cooperation strategy. The authors propose a joint constrained optimization framework that considers the allocation of power levels across the relays subject to individual and global power constraints and the design of linear receivers for interference suppression. They derive constrained Minimum Mean-Squared Error (MMSE) expressions for the parameter vectors that determine the optimal power levels across the relays and the parameters of the linear receivers.