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Lower Bound on the Capacity of Continuous-Time Wiener Phase Noise Channels (1503.03223v1)
Published 11 Mar 2015 in cs.IT and math.IT
Abstract: A continuous-time Wiener phase noise channel with an integrate-and-dump multi-sample receiver is studied. A lower bound to the capacity with an average input power constraint is derived, and a high signal-to-noise ratio (SNR) analysis is performed. The capacity pre-log depends on the oversampling factor, and amplitude and phase modulation do not equally contribute to capacity at high SNR.