Optimal power allocation in uplink base stations cooperative system

Abstract

In this paper, we study the base station cooperative mechanism in uplink of 3GPP LTE system. In cellular systems with tight frequency reuse, one base station receives signals not only from users in local cell but also from users in adjacent cell which act as co-channel interference. Successive interference cancellation is a popular strategy for based base stations cooperation. We proposed power allocation algorithm suit for base stations cooperative system which adopt successive interference cancellation strategy. We give the optimal power allocation algorithm for fixed detect order and fixed target SINRs as well as optimal detect order to minimal total transmit power.