Dynamic channel allocation schemes for overlay cellular architectures

Conventional cellular systems have not taken full advantage of frequency reuse and adaptive allocation due to the fixed cluster size and uniformed channel assignment procedure. In this paper, we propose two reuse portioning scheme for adaptive channel allocation namely maximal dynamic reuse partitioning (MDRP) and optimal dynamic reuse partitioning (ODRP). We propose that an overlaying cellular clustering scheme which uses adaptive cluster size would provide a better capacity by exploiting the high level of signal to interference ratio (SIR). The proposed methods are studied via simulations and the results show that the adaptive clustering with optimization provide a better capacity and grade of service (GoS) under some assumptions comparing to the conventional cellular architectures.