FDMA System with Space–Time Encoded CPM Signals
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DOI: 10.1007/s11277-018-5287-3
Abstract: The paper considers a multiple-antenna uplink wireless transmission (MIMO) system in a Frequency Division Multiple Access multi-user environment. It involves a concatenation of Space–Time Block or Trellis Codes (STBC or STTC) with Continuous Phase Modulation… read more here.
Keywords: fdma system; space time; system; system space ... See more keywords
The Cardiovascular System in Space: Focus on In Vivo and In Vitro Studies
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DOI: 10.3390/biomedicines10010059
Abstract: On Earth, humans are subjected to a gravitational force that has been an important determinant in human evolution and function. During spaceflight, astronauts are subjected to several hazards including a prolonged state of microgravity that… read more here.
Keywords: system space; focus vivo; human spaceflight; cardiovascular system ... See more keywords