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Contrast to the adaptive equalization method, which need a training period, blind equalization technique, which only the output signal is known, is needed in many communication systems, such as multipoint data network or wireless communication systems. In this paper, a new blind equalization approach, called expectation maximization blind equalization (EM-BE), is proposed. First, transform the convolution...
We analyze the end-to-end error performance of M-ary frequency shift keying (MFSK) with noncoherent detection over independent and non-identical flat Nakagami-m fading channels. A dual-hop relay transmission using amplify-and-forward (AF) protocol with average power scaling (APS) mechanism is considered. Generalized closed-form expressions for the average symbol error probability (ASEP) of noncoherent...
In single relay non-cooperative amplify-and-forward (AaF) system, taking into account both long-term path loss and short-term Rayleigh fading, a closed form expression to distribute total power optimally among source and relay is obtained, which minimize end-to-end BER. The simulation results under various channel conditions and scenarios show that it is consistent with theoretical analysis, and optimal...
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