2008•Journal of China Academy of Electronics and Information TechnologyRequires access

Software Radio,Cognitive Radio and Ultimate Radio——A Prospect of Wireless Communication

Yang Xiao-niu

Abstract

Through a review and outlook of three basic structures of software radio(SR) proposed by the author and the fundamental concept of Cognitive Radio(CR),the paper presents a new framework of CR and its corresponding cognitive cycle based on the principle of electronic reconnaissance.Furthermore,faced with the existing problems of CR,the author puts forward a new concept of SR-Ultimate Radio(UR) based on the theory of blind source separation(BSS).The feasibility of realizing UR is also discussed.

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Key concepts: Cognitive radio, Software-defined radio, Wireless, Radio frequency, Radio communications, Telecommunications, Computer science, Software