Practical resource scheduling and power control optimization for LTE femtocell networks

Abstract

This paper presents a proposal for interference avoidance in Long Term Evolution (LTE) femtocells by using a simple distributed frequency-domain resource allocation and power optimization. A downlink frequency-domain scheduling approach is proposed to roughly separate the macro- and femtocell resource allocation with a small signaling load increase from macrocell to femtocells. The scheduling approach is also modified to fit single-carrier operation in LTE uplink. Extensive simulations are carried out with LTE system compliance and results show the proposed scheduler effectively improves the system throughput up to a moderate resource utilization.