Backward compatible MIMO techniques in a massive MIMO test-bed for long term evolution (LTE) mobile systems

This paper proposes a virtual antenna mapping method for backward compatible massive or large-scale antenna multiple input multiple output (MIMO) base stations that provide communication services for legacy user equipment (UE) that can recognize only two or four base station antennas. The proposed m...

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Bibliographic Details
Main Authors: Seok Ho Won, Saeyoung Cho, Jaewook Shin
Format: Conference Proceeding
Language:English
Subjects:
Array signal processing
Base stations
Bit error rate
Computer simulation
large array antennas
massive MIMO
MIMO
omnidirectional beamforming
precoding techniques
Transmitting antennas
virtual antenna techniques
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Description
Summary:This paper proposes a virtual antenna mapping method for backward compatible massive or large-scale antenna multiple input multiple output (MIMO) base stations that provide communication services for legacy user equipment (UE) that can recognize only two or four base station antennas. The proposed method adopts and improves the omnidirectional beamforming that has been pioneered in previous works. The computer simulation results provide four important findings; the most important is that the actual number of virtually mapped physical antennas is inversely proportional to the transmit power per antenna.
ISSN:1738-9445
DOI:10.1109/ICACT.2015.7224888