The objective of this paper aims to benchmark the performance of a proposed collaborative algorithm for the dynamic spectrum allocation in distributed cognitive wireless networks.An algorithm called Collaborative FAHP was developed, it is intended to share the cognitive user's information and from that information select the best spectrum opportunity.The assessment was carried out through the development of simulation software based on the real spectral occupancy data taken from the 1850 MHz to 2000 MHz frequency band.The results were compared with two more algorithms, simple FAHP and completely Random one.The results show that as there is more spectrum information the FAHP-Collaborative algorithm increases its performance level regarding bandwidth.However, it is also noted the results are dependent on the data quantity and quality that is shared among the cognitive users.