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This work presents blind joint interference suppression and power allocationalgorithms for DS-CDMA networks with multiple relays and decode and forwardprotocols. A scheme for joint allocation of power levels across the relayssubject to group-based power constraints and the design of linear receivers forinterference suppression is proposed. A code-constrained constant modulus (CCM)design for the receive filters and the power allocation vectors is devisedalong with a blind channel estimator. In order to solve the proposedoptimization efficiently, an alternating optimization strategy is presentedwith recursive least squares (RLS)-type algorithms for estimating theparameters of the receiver, the power allocation and the channels. Simulationsshow that the proposed algorithms obtain significant gains in capacity andperformance over existing schemes.

Blind Interference Suppression and Power Adjustment with Alternating Optimization for Cooperative DS-CDMA Networks