Subcarrier BD with Cooperative Communication for MIMO-NOMA System
نویسندگان
چکیده
With the rapid evolution of Internet things (IoT), many edge devices require simultaneous connection in 5G communication era. To afford massive data IoT devices, multiple input output non-orthogonal access (MIMO-NOMA) method has been considered as a promising technology. However, there are numerous drawbacks due to error propagation and inter-user interferences. Therefore, proposed scheme aims improve reliability MIMO-NOMA system with digital beamforming intra-cluster cooperative multi point (CoMP) efficiently support system. In conventional system, user entities grouped into clusters. Block diagonalization (BD) is applied eliminate inter-cluster interference since channel path stream from single antenna cluster doesn’t hold other cluster’s data, can’t fully utilize selective subcarrier states. It indicates that can be better paths for at certain index. allocates streams antennas adaptively considering Additionally, CoMP adjusted enhance The simulation results show improves BER throughput performance compared
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ژورنال
عنوان ژورنال: Computers, materials & continua
سال: 2022
ISSN: ['1546-2218', '1546-2226']
DOI: https://doi.org/10.32604/cmc.2022.028434