Patent
Multi-user detection decoding method of array antenna satellite communication system
Wu Sheng,Zhang Jian,Kuang Linling,Ni Zuyao +3 more
- 28 Sep 2016
3
TL;DR: In this article, a multi-user detection decoding method of an array antenna satellite communication system was proposed for interference elimination and decoding of an uplink of a system accessed by multiple users through an SC-FDMA multi-access mode.
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Abstract: The invention provides a multi-user detection decoding method of an array antenna satellite communication system. The method is used for interference elimination and decoding of an uplink of a system accessed by array antenna multiple users through an SC-FDMA multi-access mode. The method includes performing repeated iteration among a decoding node, a mapping/anti-mapping node and a multi-user detection node on messages. After a certain iteration number is reached, combined interference elimination and decoding among multiple users of the array antenna satellite communication system are realized further and a decoding result with eliminated interference is output. The invention relates to an expectation propagation algorithm based combined interference elimination and decoding implementation method in multi-user SC-FDMA reverse link of the array antenna satellite communication system. According to the invention, the structure of a factor graph is combined for processing interference elimination and decoding of the multi-user system in a combined manner. Besides, by adopting the expectation propagation algorithm, computation complexity is reduced further. The method provided by the invention is low in linear computation complexity and good in interference elimination performance.
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Patent
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Jeffrey Francis Bull,Alden Joe Fuchs,Charles Howard Woloszynski +2 more
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TL;DR: In this paper, a beam steering controller is configured to steer a main beam of the antenna by controlling the phase shifts applied by the antenna elements in a plurality of antenna elements, each of which can be configured to apply a phase shift to a signal.
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Patent
MIMO-SCMA system downlink design method based on STBC
Han Shuai,Guo Cheng,Meng Weixiao,Sha Xuejun,Zhang Zhongzhao +4 more
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Patent
A joint multi-user detecting and decoding method based on a belief propagation algorithm
Kuang Linling,Li Haihan,Wu Sheng,Zuyao Ni +3 more
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