Efficient Joint Resource Allocation for OFDM-Based Cooperative Cognitive Radio Networks with Rate-Guarantee
Xuezhou Yang, Wei Tang, Wei Guo · KSII Transactions on Internet and Information Systems · 2014
This letter proposes an efficient joint resource allocation scheme for OFDM-based cooperative cognitive radio networks (CRNs) under various practical limitations.Compared with those traditional approaches, which guarantee the transmission rates of cognitive users, the proposed scheme ensures that cognitive users are maintained in proportion to the predefined target rates.Numerical simulation shows that the proposed scheme can achieve a reasonable tradeoff between performance and computational complexity.