Resource Management in Multicarrier Based Cognitive Radio Systems (2012)
Abstract / truncated to 115 words
The ever-increasing growth of the wireless application and services affirms the importance of the effective usage of the limited radio spectrum. Existing spectrum management policies have led to significant spectrum under-utilization. Recent measurements showed that large range of the spectrum is sparsely used in both temporal and spatial manner. This conflict between the inefficient usage of the spectrum and the continuous evolution in the wireless communication calls upon the development of more flexible management policies. Cognitive radio (CR) with the dynamic spectrum access (DSA) is considered to be a key technology in making the best solution of this conflict by allowing a group of secondary users (SUs) to share the radio spectrum originally allocated to ... toggle 7 keywordsresource management – cognitive radio – primary users – OFDM – filterbank multicarrier (fbmc) – relay communications – suboptimal algorithm and complexity comparison.
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