Improved Pilot Designs for Enhancing Connectivity in Multicarrier Massive MIMO Systems
IEEE Wireless Communications Letters(2022)
摘要
This letter proposes improved pilot designs to enhance the connectivity of multicarrier massive MIMO systems. Exploiting the fact that orthogonal frequency-division multiplexing (OFDM) training symbols end with zero samples, the proposed pilot designs reduce pilot overhead by truncating the zero samples and/or intentionally using them for a guard interval without affecting the channel estimation q...
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关键词
OFDM,Channel estimation,Massive MIMO,Training,Time-frequency analysis,Time-domain analysis,Random variables
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