Adaptive Discrimination Scheme for Quantum Pulse Position Modulation Signals

TL;DR

This paper introduces an adaptive quantum receiver scheme for Pulse Position Modulation signals that uses dynamic programming to optimize measurements, significantly improving discrimination performance over existing methods.

Contribution

It presents a novel adaptive measurement strategy employing dynamic programming to enhance quantum signal discrimination in PPM communication systems.

Findings

Approaches the theoretical performance limit more closely than previous schemes

Employs adaptive local measurements within symbol intervals

Uses dynamic programming for measurement optimization

Abstract

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.