{'fraction_non_alphanumeric': 0.023769100169779286, 'fraction_numerical': 0.0, 'mean_word_length': 5.2105263157894735, '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}}
Cache-aided content delivery in MIMO channels

In this paper, we investigate the content delivery problem in the context of multi-antenna (MIMO) wireless networks. The single-antenna users, equipped with some cache memory, receive requested contents from the server through a multi-antenna base station. We propose a scheme that carefully combines the multicast and unicast capabilities offered by MIMO, as a function of the quality of channel state information at the transmitter side. Thereby we reveal the complementary roles of coded caching and MIMO transmission for content delivery.