Download or read book Opportunistic Spectrum Sharing in Cognitive Radio Networks written by Zhe Wang and published by Springer. This book was released on 2015-03-18 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Springer Brief investigates spectrum sharing with limited channel feedback in various cognitive radio systems, such as point-to-point, broadcast scheduling and ad-hoc networks. The design aim is to optimally allocate the secondary resources to improve the throughput of secondary users while maintaining a certain quality of service for primary users. The analytical results of optimal resource allocation are derived via optimization theory and are verified by the numerical results. The results demonstrate the secondary performance is significantly improved by limited feedback and is further improved by more feedback bits, more secondary receivers and more primary side information.