Dynamic Channel Allocation to Interfered Cellular Networks

A channel allocation (CA) method is proposed that allocates frequency channels to the cells of a mobile network taking into account the frequency reuse pattern employed and the interference caused by neighboring TV broadcasters. The proposed CA is optimal in the sense that it maximizes channel utilization and at the same time achieves a very high level of fairness among the network users. The proposed method is implemented employing a Genetic Algorithm based iterative scheme. Due to its reduced computational complexity, the practical application of the proposed CA scheme is characterized by short completion time. To increase granularity the method can be extended to incorporate adaptive coding and modulation. It can also handle uncommon traffic conditions by dynamically reallocating channels to emergency cells.