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An Enhanced Orthogonal Spatial Modulation Method Able to Achieve Transmit Diversity Supporting Fast Decoding

A technology of transmit diversity and fast decoding, applied to the shaping network in the transmitter/receiver, preventing/detecting errors through diversity reception, transmission systems and other directions, which can solve the problem of inflexible antenna configuration.

Active Publication Date: 2020-03-31
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide an enhanced orthogonal spatial modulation method that supports fast decoding and can obtain transmit diversity in order to solve the problems in the existing SM scheme that the configuration of the number of antennas is not flexible enough, parameter search or matrix optimization is required.

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  • An Enhanced Orthogonal Spatial Modulation Method Able to Achieve Transmit Diversity Supporting Fast Decoding
  • An Enhanced Orthogonal Spatial Modulation Method Able to Achieve Transmit Diversity Supporting Fast Decoding
  • An Enhanced Orthogonal Spatial Modulation Method Able to Achieve Transmit Diversity Supporting Fast Decoding

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Embodiment Construction

[0091] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0092] Various structural schematic diagrams according to the disclosed embodiments of the p...

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Abstract

The invention discloses an enhanced orthogonal spatial modulation method capable of obtaining transmission diversity and supporting fast decoding. P diffusion matrixes are activated in Q diffusion matrixes of each set for sending real parts and imaginary parts of P symbols each time. For the decoding of EDA-QSM scheme, after all 2Q disperse matrixes are reasonably ranked, EDA-QSM has a partitioning orthogonal characteristic, so that the fast decoding is supported by the invention. By means of the partitioning orthogonal characteristic, the SCMB-SD algorithm can estimate two groups of activatedserial number vectors and P symbols at same time only by executing spherical search once,, so that the decoding complexity is very low. Simulation results show that under different system configurations, compared with other existing spatial modulation schemes, the EDA-QSM has better error code performance.

Description

【Technical field】 [0001] The invention belongs to the technical field of transmit diversity transmission in a multi-antenna wireless communication system, and relates to an enhanced orthogonal space modulation method that supports fast decoding and can obtain transmit diversity. 【Background technique】 [0002] Spatial Modulation (Spatial Modulation, SM) and Space Shift Keying (Space Shift Keying, SSK) use spatial dimensions to transmit information, and can obtain additional spectral efficiency compared with traditional MIMO schemes. Therefore, in recent years, SM and SSK have received extensive attention as a novel MIMO transmission technology. However, SM and SSK only activate one antenna per transmission, so they cannot achieve transmit diversity and can only rely on receive diversity to combat channel fading. [0003] Scholars have proposed a variety of solutions to the defect that SM and SSK cannot obtain transmit diversity. For example, the literature extends the conc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L1/06H04L1/00H04B7/0456
CPCH04B7/0456H04L1/0054H04L1/0668H04L25/03242
Inventor 王磊
Owner XI AN JIAOTONG UNIV
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