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In this paper, we consider an amplify-and-forward (AF) OFDM relaying system without direct channel between the source node and the destination node. Different from the traditional frequency domain channel estimation, we utilize the special comb-type pilots to perform the time domain processing, and estimate the equivalent end-to-end channel impulse response. Simulation results show that our proposed...
In this paper, a new synchronization receiver architecture for continuous phase modulation (CPM) and relevant carrier phase and symbol timing recovery methods based on frame synchronization and fractional-spaced frequency domain equalization (FDE) are proposed. With frame synchronization and fractional-spaced FDE, frequency selective fading can be equalized for the up-sampled CPM signal. At the same...
In this paper, a new receiver architecture with frequency-domain equalization (FDE) for continuous phase modulation (CPM) is proposed. With fractional-spaced FDE for up-sampled CPM signal, receivers designed for additive white Gaussian noise (AWGN) channel can be used for demodulating and detecting the CPM signal. Low complexity fractional-spaced channel estimation and FDE algorithms, which can estimate...
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