A collaborative spectrum sensing method for cognitive radio

With a constant joint probability of false alarm, cognitive radio users adjust their thresholds according to SNRs to increase the high-SNR user’s contributions to the performance of collaborative spectrum sensing and constrain the negat

Analysis of energy detection based spectrum sensing in noise of uncertain power;

This paper classifies the mainly spectrum sensing algorithms according to primary transmitter detection and primary receiver detection and makes contrast of them.

In order to solve the problem of spectrum recognization in cognitive radio,the spectrum sensing methods of recent years are described.

Performance analysis of cooperative spectrum detection under correlated decision

In cognitive radio, spectrum detection is targeted on detecting the interference temperature.

This paper starts with the concept of cognitive radio, focuses on the key techniques, such as spectrum detection, spectrum management and power control, as well as the applications of cognitive radio in ultra-wide-band, Mesh network and wireless area network.

Clinical value of combined detection of hepatic enzymes in diagnosis of liver and gall diseases;

Clinical significance of combined detection of serum CYFRA21-1,CA153 and TSGF levels for diagnosis of mastocarcinoma;

Value of CA125 and CA19-9 combined detection in diagnosis of ovarian carcinoma;

Performance comparison of joint detection in TD-SCDMA system;

Coding and an approximate decoding algorithm for joint detection;

Combination of smart antennas andjoint detection in uplink of TD-SCDMA;