Rate-Adaptive Concatenated Multi-Level Coding With Novel Probabilistic Amplitude Shaping

Abstract

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Symbol-wise Puncturing for HARQ Integration with Probabilistic Amplitude Shaping

“…In recent years, the PAS scheme has been widely investigated in wireless and fiber-optic communications, e.g. [10]- [12]. As a key component of PAS, the design of DM has also attracted much attention [13], [14].…”

Geometric Constellation Shaping for Concatenated Two-Level Multi-Level Codes

“…In [24]- [27], applications of the probabilistic amplitude shaping (PAS) [28] to concatenated two-level MLC have been studied, where better performance-complexity trade-offs than the conventional BICM were demonstrated even with much lower complexity. Although PAS may achieve better achievable information rate (AIR) than GS in general [29], PAS requires an external distribution matcher (DM) whose efficient hardware implementation can be challenging especially for achieving a large shaping gain.…”