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Adaptive Discrimination Scheme for Quantum Pulse Position Modulation Signals

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arxiv 1307.0128 v4 pith:QXRPH4FB submitted 2013-06-29 quant-ph

Adaptive Discrimination Scheme for Quantum Pulse Position Modulation Signals

classification quant-ph
keywords discriminationmodulationpositionpulsequantumreceiverschemesignals
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In the communication scenario, we consider the problem of the discrimination between the signals of the Quantum Pulse Position Modulation. We propose a receiver scheme that employs repeated local measurements in distinct temporal slots within the symbol time interval, adaptively chosen on the basis of the outcomes in the previous slots. By employing Dynamic Programming to optimize each measurement, we approach the theoretical performance limit much closer than existing receiver schemes.

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