动态时变衰落信道下的频谱感知算法

doi:10.3969/j.issn.1000-436x.2014.07.008

Abstract

Abstract:

A dynamic state-space model (DSM) was presented for the problem of spectrum sensing under time-variant flat fading channels (TVFF).The primary user (PU) state and the fading channel were characterized as hidden states.On this basis,a novel method was proposed to estimate the PU state and the fading channel gain jointly and in real time.The simulation results show that the approach proposed could improve the performance of spectrum sensing apparently in time-variant flat fading channels.

Key words: time-variant flat fading channels, spectrum sensing, dynamic state-space model, joint estimation

Meng-wei SUN,Long ZHAO,Qiao-chun XU,Bin LI,Cheng-lin ZHAO. New spectrum sensing method under time-variant flat fading channels[J]. Journal on Communications, 2014, 35(7): 63-69.

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New spectrum sensing method under time-variant flat fading channels

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