Fig. 3From: Enhanced interpolation-based interference rejection combining for black-space cognitive radio in time-varying channelsPerformance of QPSK BS-CR systems with known channel and sample covariance-based approaches for SIR values of {− 10, − 20, − 30} dB considering block fading channel (no-mobility) with silent gap length of 16 OFDM symbols and OFDM frame length of 17 symbolsBack to article page