A Low Computational Method in Maximizing the Throughput of An OFDM based Cognitive Radio System

Computation reduction in resource allocation of those cognitive radio systems which employ orthogonally frequency division multiple access1, is the aim of this paper. When the secondary user is permitted to capture any portion of the band which holds its interference with the primary user2's below a given threshold level, and efforts are to maximize the throughput under power budget and interference constraint, a very simple method with low complexity for resource allocation is proposed. Comparison between the proposed method and previous works shows the performance of the proposed method.

Keywords:

resource allocation , cognitive radio , OFDMA