Implementation of OFDMA-Based Cognitive Radio via Accessible Interference Temperature

Bin DA  Chi-Chung KO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.10   pp.2830-2832
Publication Date: 2010/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2830
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMA,  cognitive radio,  resource allocation,  spectrum sharing,  

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Summary: 
In a conventional downlink OFDMA system, an underlay secondary network is co-located to formulate a new implementation of OFDMA-based cognitive radio (OCR), where spectrum sharing is enabled between primary users and secondary users. With the introduced concept of accessible interference temperature, this new model can be easily implemented and may contribute to the future realization of OCR systems.