Constant-Envelope Multi-User Precoding for Frequency-Selective Massive MIMO Systems
Information Theory
2013-05-08 v1 math.IT
Abstract
We consider downlink precoding in a frequency-selective multi-user Massive MIMO system with highly efficient but non-linear power amplifiers at the base station (BS). A low-complexity precoding algorithm is proposed, which generates constant-envelope (CE) signals at each BS antenna. To achieve a desired per-user information rate, the extra total transmit power required under the per-antenna CE constraint when compared to the commonly used less stringent total average transmit power constraint, is small.
Cite
@article{arxiv.1305.1525,
title = {Constant-Envelope Multi-User Precoding for Frequency-Selective Massive MIMO Systems},
author = {Saif Khan Mohammed and Erik G. Larsson},
journal= {arXiv preprint arXiv:1305.1525},
year = {2013}
}
Comments
Submitted to IEEE Wireless Communications Letters