{'fraction_non_alphanumeric': 0.024615384615384615, 'fraction_numerical': 0.004615384615384616, 'mean_word_length': 4.8125, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A new concept of Bit Geometrical Uniformity and its application to BICM-ID systems

A new concept of bit geometrical uniformity (BGU) is introduced to help the analysis and estimation of performance of systems with iterative detection/decoding (ID). It is also shown that the BGU labelings of the signal constellation allows a fast search for best component binary recursive systematic convolutional (RSC) codes of a BICM-ID system using both of overall and in-line interleaving. Best rate-1/2 RSC codes are reported for 4PSK constellation as an example. The new concept and new search method can be directly extended to MPSK and MQAM constellations.