A massive MIMO FBMC beam space-time coding downlink transmission method
A transmission method and space-time coding technology, applied in the field of wireless transmission, can solve problems such as not considering multi-users
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[0070] In a Massive MIMO FBMC system, a multi-beam space-time coding multi-user downlink channel transmission method includes a base station with a large-scale uniform linear array, the number of antennas is M, and U single-antenna user nodes, when considering the angle, each other No overlap; the number of subcarriers in the FBMC system is M sc , the prototype filter is the PHYDYAS prototype filter, the overlap factor is K, and the length is L.
[0071] A hybrid beamforming and space-time coding multi-user downlink signal transmission method in a Massive MIMO system, the system model is as follows figure 1 As shown, the base station performs Alamouti encoding on the sending data at the sending end and uses FBMC modulation to serve multiple users at the same time and frequency through multiple beams. The specific steps are as follows:
[0072] 1) The base station performs OQAM modulation on the data sent to the user to obtain real data symbols.
[0073] The base station perf...
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