Title :
A Combined Spectrum Sensing and OFDM Demodulation Scheme
Author :
Heskamp, M. ; Slump, C.H.
Author_Institution :
Fac. of EEMCS, Univ. of Twente, Enschede, Netherlands
Abstract :
In this paper we propose a combined signaling and spectrum sensing scheme for cognitive radio that can detect inband primary users while the networks own signal is active. The signaling scheme uses OFDM with phase shift keying modulated sub-carriers, and the detection scheme measures the deviation of each sub-carrier from a circular shape.
Keywords :
OFDM modulation; cognitive radio; phase shift keying; OFDM demodulation scheme; cognitive radio; combined spectrum; inband primary users; phase shift keying modulated sub-carriers; Cognitive radio; Constellation diagram; Demodulation; Differential phase shift keying; Frequency estimation; Frequency shift keying; OFDM modulation; Phase shift keying; Radio transmitters; Shape measurement;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5426071
