Constellation Precoded Multiple Beamforming
Hong Ju Park, Boyu Li, and Ender Ayanoglu

TL;DR
This paper introduces constellation precoded multiple beamforming that achieves full diversity order in MIMO systems with reduced decoding complexity, applicable to both coded and uncoded scenarios, supported by analytical proof.
Contribution
It proposes a novel constellation precoding method for multiple beamforming that guarantees full diversity order with lower decoding complexity.
Findings
Achieves full diversity order with BICM-coded and uncoded SVD systems.
Provides an analytical proof of the full diversity property.
Develops a Sphere Decoding technique with significantly reduced computational complexity.
Abstract
Beamforming techniques that employ Singular Value Decomposition (SVD) are commonly used in Multi-Input Multi-Output (MIMO) wireless communication systems. In the absence of channel coding, when a single symbol is transmitted, these systems achieve the full diversity order provided by the channel; whereas when multiple symbols are simultaneously transmitted, this property is lost. When channel coding is employed, full diversity order can be achieved. For example, when Bit-Interleaved Coded Modulation (BICM) is combined with this technique, full diversity order of NM in an MxN MIMO channel transmitting S parallel streams is possible, provided a condition on S and the BICM convolutional code rate is satisfied. In this paper, we present constellation precoded multiple beamforming which can achieve the full diversity order both with BICM-coded and uncoded SVD systems. We provide an…
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Taxonomy
TopicsSpeech and Audio Processing · Antenna Design and Optimization
