Inspec keywords: cognitive radio; phase shift keying; channel estimation; matched filters; AWGN channels; radio spectrum management; signal detection; synchronisation

Other keywords: unknown phase shift; energy detector; low signal-to-noise ratio; matched filter; primary user signal; secondary users receivers; primary users signals; binary phase shift keying-modulated signal; LOD; cognitive radio; signal-to-noise ratio; additive white Gaussian noise; WSBLOD design; linear modulation; channel estimation; semiblind detector test statistic; weighted semiblind locally optimum detector design; semiblind spectrum sensing improvement; locally optimal semiblind detection metric; hybrid detector

Subjects: Modulation and coding methods; Radio links and equipment; Signal detection; Communication channel equalisation and identification