Geometric Programming Based Distributed Resource

초록

In this paper a novel Geometric Programming based distributed approach is proposed which enables small cell users to optimize their downlink performance by exploiting distributed joint allocation of transmission power and subchannels. The problem is formulated to maximize the system sum capacity, specifically, the time delay is taken into as a constraint to guarantee the quality of service. Consequently, the original problem is modeled as a non-convex NP-hard problem. To solve this problem, Geometric Programming is used to convert the original optimization problem into a convex one, which is further solved to obtain the global optimal solution. What’s more, Simulation results show that the proposed approach yields significant performance gains.