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What is DFT-Based Channel Estimation for Massive MIMO about?
This paper proposes a new transmission strategy for massive MIMO systems using a spatial basis expansion model (SBEM) aided by discrete Fourier transform (DFT). The SBEM represents uplink and downlink channels with fewer parameters by exploiting angle reciprocity and array characteristics. This allows channel estimation to be performed with few training resources, reducing overhead. A user scheduling scheme is also designed to improve spectral efficiency during data transmission. Compared to existing low-ra
- Author
- prabhabathi devi
- Language
- EN