{'fraction_non_alphanumeric': 0.028969957081545063, 'fraction_numerical': 0.0, 'mean_word_length': 5.664285714285715, '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}}
Inter-eigenbeam interleaving scheme for eigenbeamspace division multiplexing in OFDM system

This paper proposes an inter-eigenbeam interleaving scheme for the eigenbeam-space division multiplexing (E-SDM) in orthogonal frequency division multiplexing (OFDM) systems. It changes the assignment of eigenbeams to each data stream under the rule of cyclic sub-carrier selection, and the signal error created by eigenbeams with small eigenvalues can be corrected by a forward error correction (FEC) scheme that involves the eigenbeams with large eigenvalues. We evaluate the throughput performance of the proposed scheme and compare it with adaptive bit loading and transmission power control (ABL/TPC), which is a conventional E-SDM scheme. The simulation results show that the proposed scheme offers more stable throughput performance than ABL/TPC under fast Doppler fading environments. Keywords-component; MIMO, SDM, Eigenbeam, OFDM