A ripple form RSRP based algorithm for load balancing in downlink LTE self-optimizing network

In this paper we present an autonomous load balancing algorithm for downlink LTE network, the ripple form reference signal received power based load balancing algorithm (RF-RSRPBLBA), which mainly requires the reference signal received power (RSRP) and cell load information. In RF-RSRPBLBA, overloaded cells distribute their surplus load in a greedy manner. As a general character of greedy algorithm, its solution is not necessarily the optimum one. However, simulation results show that RF-RSRPBLBA performs better than handover offset based load balancing algorithm (HOOBLBA), a typical greedy algorithm for load balancing from use case suggested by EU FP7 SOCRATES project [1], when handling certain types of hotspots. Under normal conditions both performance close.