Agreement-Based Interference-Aware Dynamic Channel Allocation in Cognitive Radio Network (CRN)

摘要

Cognitive Radio Networks (CRNs) is an intelligent wireless communication network that senses its environment to adjust the transmitter parameters in order to exploit the unused portions of available spectrum. The objective here is to ensure reliable communication with minimum intereference to Primary Users (PUs) and efficient spectrum utilization. The spectrum assigned to licensed users is underutilized and the growing demand causes starvation to the unlicensed users. Thus, CRN senses the available spectrum to find the most appropriate spectrum for allocation. Further, to maximize the efficient use of available spectrum, agreement (consensus) may be used wherein all users agree on a common decision value. In the paper, we discuss various techniques of spectrum allocation in CRN. Lastly, we propose an interference-aware protocol that achieves load balancing, high throughput and less number of reallocations to maximize spectrum utilization. Also, the paper validates the proposed algorithm using the simulation results.