Full-diversity design criterion for multi-user STBC based on integer-forcing detection |
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Authors: | Guoquan LI Xiangyun ZHOU Jinzhao LIN Yongjun XU Yu PANG Jiacheng WANG |
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Affiliation: | 1. School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;2. Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China |
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Abstract: | Multi-user space time block code systems have the problem of high decoding complexity.To ensure good system performance with low decoding complexity at the same time,low complexity integer-forcing (IF) detection algorithm was applied to multi-user space time block code.Then the upper bound of error probability for IF detection was derived by minimizing the equivalent noise power.To obtain good multi-user space time block code when decoded with IF detection,a full-diversity design criterion was proposed.It was proved that full diversity could be achieved if every user’s space time block code had property of non-vanishing singular value.Simulation result shows that the code gain is found related to the minimum singular value. |
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Keywords: | MIMO system integer-forcing detection multi-user space time block code design criterion full diversity |
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