Performance Analysis of Location-Based Loading Control for Downlink FH-OFDMA Systems

Abstract

A strategy for avoiding the ICI (Inter Cell Interference) termed LBLC (Location-Based Loading Control) for downlink FH-OFDMA (Frequency Hopping Orthogonal Frequency Division Multiple Access) systems over multi-cell environments with a frequency reuse factor of 1 is described. To mitigate the effect of the ICI, a closed form of outage probability is derived and is utilized as a criterion for obtaining an optimal set of loading parameters. For a given target QoS (Quality of Service), region partitioning is performed and a carrier loading ratio at each region is obtained. An optimal set of loading parameters according to each region can be obtained from the simulations. In addition, the feasibility of the LBLC technique is demonstrated.