{'fraction_non_alphanumeric': 0.013285024154589372, 'fraction_numerical': 0.0012077294685990338, 'mean_word_length': 5.426356589147287, '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}}
Space-Time Trellis Coding Exploiting Superimposed Transmissions in Half-Duplex Relay Networks

This work presents and analyzes a cooperative relaying approach which offers large scale spatial diversity and an additional coding advantage in a virtual antenna array. It utilizes a network of alternately sending and receiving relays whereas only one relay is sending at a particular time. The relay network is used to inherently implement a serial concatenation of a distributed Space-Time Trellis Code and an outer convolutional code. This paper discusses the influence of the source power allocation, network size and inter-relay interference. It further shows the performance compared to conventional relaying and a cooperative relaying protocol using orthogonal subchannels by means of the Eb/N0 gain over direct transmission.