Spectrum Load Balancing for Flexible Spectrum Usage in Local Area Deployment Scenario

In this paper we propose a non-contention based mechanism for allocation of the spectral resources by several interfering Home e-NodeBs (HeNBs) deployed by the same or different operators, potentially in random manner in a given geographical area. The proposed mechanism facilitates allocation of spectral resources from a common pool based on the individual traffic requirements of the HeNBs, thereby enabling Flexible Spectrum Usage (FSU). It ensures coexistence of several HeNBs in the given geographical area by partially or completely preventing mutual interference on the shared spectrum. A significant gain in both mean cell throughput and cell edge user outage throughput performance is realized over frequency reuse 1 and 1/4 configurations for a wide range of average offered traffic loads.