Rate-Adaptive Probabilistic Shaping Enabled by Punctured Polar Codes with Pre-set Frozen Bits
Shajeel Iqbal, Metodi P. Yankov, Søren O. Forchhammer · 2019
We propose to pre-set the frozen bits of a rate-adaptive punctured polar-coded system to pseudo-random sequences. The many-to-one probabilistic shaping gains are improved to 2 dB (≈160 km) w.r.t. the standard punctured polar-coded system.