Abstract
Cognitive radio is an emerging technology in communication systems. Cognitive radios aim to relief the shortage of spectral resources by identifying and exploiting underutilized radio spectrum. A key task of the cognitive radio is spectrum sensing in order to find free spectrum and detect licensed spectrum user transmissions. In this paper, an FPGA implementation of a feature detector for OFDM-based primary user signals is presented. The detection algorithm, that was originally presented in [1], is modified in order to achieve power and area efficient hardware realization. The algorithm is implemented in an FPGA evaluation environment, and the performance is verified in simulation.
Original language | English |
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Title of host publication | 2009 NORCHIP |
DOIs | |
Publication status | Published - 2009 |
MoE publication type | A4 Conference publication |
Event | Nordic Microelectronics Conference - Trondheim, Norway Duration: 16 Nov 2009 → 17 Nov 2009 Conference number: 27 |
Conference
Conference | Nordic Microelectronics Conference |
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Abbreviated title | NORCHIP |
Country/Territory | Norway |
City | Trondheim |
Period | 16/11/2009 → 17/11/2009 |