A Beamforming Pilots Scheme for Massive MIMO System

Abstract:

To acquire channel state information for Massive MIMO system , a downlink beamforming pilots scheme is proposed for efficient channel estimation. The channel estimation overhead of the proposed scheme is independent on the BS antenna numbers, and is only proportional to user numbers. MMSE precoding method is derived to implement the proposed scheme. Finally in simulation the proposed algorithm is compared with conventional algorithms without beaforming training in spectral efficiency performance. The simulation results show that the proposed scheme performs better than the existing schemes.

• Periodical: Applied Mechanics and Materials (Volumes 568-570)
• Pages: 1259-1262
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.568-570.1259
• Online since: June 2014
• Authors: Hong Zhang*, Dong Lai Hao, Xiang Yang Liu
• Keywords: Beam-Forming, Massive MIMO, MMSE, Pilots

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