Resource Allocation in Cognitive Radio Networks: A Comprehensive Review
Akram M. A. Khalifa, Roshdy A. Abdelrassoul · 2024
Cognitive radio (CR) technology has emerged as a promising solution to address the spectrum scarcity problem by enabling opportunistic access to underutilized frequency bands. Effective resource allocation plays a pivotal role in optimizing spectrum utilization and ensuring efficient coexistence between primary and secondary users. This comprehensive review delves into the intricacies of resource allocation techniques in cognitive radio networks, exploring both theoretical foundations and practical implementations. The review covers various models, optimization objectives, challenges, recent advances, and future directions, providing valuable insights for researchers, practitioners, and policymakers.