A Low-Complexity Probabilistic Amplitude Shaping With Short Linear Block Codes

We propose a new probabilistic amplitude shaping (PAS) scheme based on short linear block codes. In the proposed system, capacity-approaching signal distribution is generated in process of decoding codes for given information bit sequence. associate design problem with classical covering problem, suggesting use good shaping. From simulation results, it demonstrated that by selecting perfect binary as our codes, offers gain around 0.3–1.0 dB. By comparing enumerative sphere (ESS) same length, we verify achieves significantly lower storage complexity and computational at receiver even comparable error rate performance.