Design of Distributed and Autonomic Load Balancing for Self-Organization LTE

Abstract

Future LTE RAN will benefit from a significant degree of self-organization. Autonomic Load Balancing (ALB) is considered as an important function of self-organization for LTE RAN. A novel distributed method to achieve ALB for LTE RAN, AFWBM (Autonomic Flowing Water Balancing Method), is presented, which works by AFWBM module. The eNBs with AFWBM modules can detect their load conditions depending on self-monitoring actions. When overload conditions are detected, eNBs can adjust their HOM (handover hysteresis margin) and trigger handover behaviors of users automatically to balance load. Simulation results have demonstrated that by AFWBM, load of eNBs can be balanced and system capacity can be improved significantly.