Abstract
In this chapter, we study an opportunistic spectrum sharing scheme in a point-to-point network, where both the primary user and secondary user are power-rate adaptive systems with a few bits of quantized channel feedback from the receivers. The secondary user detects the spectrum opportunities by overhearing the primary feedback and receiving the secondary feedback, and then adapts its power and rate accordingly. The secondary quantization codebook is designed offline by maximizing the secondary average throughput while not causing noticeable degradation to the primary throughput. The secondary quantization and transmission schemes are discussed in three cases when different primary interference information is available at the secondary receiver. Numerical results show that the secondary throughput is greatly improved by the introduction of even 1-bit feedback. Moreover, the secondary throughput increases with more secondary feedback bits or more primary side information.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
