Practical Design Considerations for Broadband Cognitive Radio Systems: Co-existence
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© 2018 IEEE. The two main challenges for Cognitive Radio systems are the identification of available bands for opportunistic communication and the co-existence of Cognitive Radio users; these challenges are revisited in this paper. Availability of two potential bands is analyzed based on spectrum sensing results. A mixed signal IC technique is proposed to improve co-existence of Cognitive Radio systems. It is shown that the co-existence of Cognitive Radio systems is improved through spread spectrum technique, at the expenses of major system complexity and limited bandwidth efficiency.
author list (cited authors)
Shao, J., Jiang, J., Karsilayan, A., Silva-Martinez, J., & Rodenbeck, C.