Game-based uplink co-tier interference control in LTE smallcell networks

Abstract

As the advancements of communication technologies and the demands for high-speed mobile data in indoor environments, deploying smallcell is recognized as one of the feasible solutions to improve the indoor signal quality and, hence, provide high-speed data transmission. However, uplink co-tier interference between smallcells deteriorates the system performance. To solve this problem, this paper adopts the Stackelberg game in which Leader and Followers bargain the uplink transmit power by a two-way pricing mechanism to meet the uplink co-tier interference constraints of Leader and Followers. Simulation results show, by controlling the uplink co-tier interference, the two-way pricing mechanism outperforms the one-way pricing mechanism not only in the power conservation but also in the sum-capacity.