Agency for Science, Technology and Research

Yong Hong Zeng

Ying Chang Liang

Jitvanichphaibool Kommate

According to embodiments of the present invention, a method for identifying one or more frequency bands in a received signal. The method comprising: calculating a wavelet product of the received signal; setting a threshold for local maxima of the wavelet product; and detecting one or more edges in the received signal based on local maxima of the wavelet product which are greater than the threshold to identify one or more frequency bands in the received signal. A corresponding apparatus and computer program product are also provided. Embodiments also relate to a method for evaluating performance of a method for identifying one or more frequency bands in a received signal. A corresponding apparatus and computer program product are also provided.

Method, apparatus and computer program product for identifying frequency bands, and a method, apparatus and computer program product for evaluating performance

A method for spectrum sensing is described comprising receiving a signal using a plurality of receive antennas; forming a set of received signals including the received signal of each antenna; determining a cyclic auto-correlation of the set of received signals; estimating, for each receive antenna, channel state information of the radio channel via which the receive antenna receives the signal based on the determined cyclic auto-correlation; performing maximum ratio combining of the received signal samples based on the estimated channel state information; determining a measure of the cyclostationarity of the received signal based on the result of the maximum ratio combining; and performing cyclostationarity detection spectrum sensing based on the determined measure of the cyclostationarity of the received signal.

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Singapore, Singapore

Yong Hong Zeng