Capacity Optimized Power Allocation for Multimedia

This work studies the optimal power allocation scheme that maximizes the uplink capacity of cellular multimedia CDMA networks under imperfect power control. We derive the conditions that such an optimal power allocation scheme should satisfy and suggest a closed-form approximate solution (a quasi-optimal power allocation scheme) to the question based on conservative bounds. By numerical examples we verify our analysis and show that great capacity gain is achieved by our new quasi-optimal scheme under imperfect power control over the referred scheme, e.g., 92% as a maximum in the example.