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A generalized spatial modulation method based on antenna combination and constellation joint mapping

A technology of generalized space modulation and antenna combination, which is applied in the field of high-reliability generalized space modulation, can solve the problem of high bit error rate, achieve the effects of reducing system bit error rate, improving space resource utilization, and reducing antenna resource waste

Active Publication Date: 2019-01-04
DONGHUA UNIV
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Problems solved by technology

[0009] (3) In the generalized spatial modulation system, the number of activated antennas must be greater than 1, and the interference and synchronization problems between antennas cannot be completely avoided. Therefore, compared with the situation in which only one antenna is activated in the spatial modulation system, the bit error rate of the system is higher

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  • A generalized spatial modulation method based on antenna combination and constellation joint mapping
  • A generalized spatial modulation method based on antenna combination and constellation joint mapping
  • A generalized spatial modulation method based on antenna combination and constellation joint mapping

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Embodiment Construction

[0035] Below in conjunction with specific embodiment, further illustrate the present invention.

[0036] figure 1 A schematic diagram of a generalized spatial modulation method based on joint mapping of antenna combinations and constellation diagrams provided in this embodiment. In this embodiment, the generalized spatial modulation system has N t = 4 transmit antennas and N r = 4 receiving antennas, the number of active antennas in each time slot is N p =2, the traditional constellation symbol modulation method is 8PSK.

[0037] Step 1: Fusion the generalized spatial modulation antenna combination table and the modulation information table to generate a joint mapping table, the steps are:

[0038] Step 1-1: Determine all possible active antenna combinations:

[0039] possible antenna combinations Effective Antenna Combination in, is the rounding down operation;

[0040] possible antenna combinations

[0041] Step 1-2: Determine the transmission rate m of the jo...

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Abstract

The invention provides a generalized spatial modulation method based on antenna combination and constellation joint mapping. Firstly, a generalized spatial modulation antenna combination table and a modulation information table are combined into a joint mapping table. Then, the binary bit information bits are mapped to the joint mapping table, and the information is transmitted to the receiving end through the transmitting end antenna. Finally, the receiving antenna performs maximum likelihood detection according to the received information and generates a final decision result. By combining the antenna combination table and the modulation information table in the generalized spatial modulation system, the invention breaks through the limitation that the combination number of the traditional generalized spatial modulation antennas must be a power of two. By increasing the number of antenna combinations in the joint mapping, the modulation order in the constellation is reduced, therebyimproving the BER performance of the system and the reliability of the system.

Description

technical field [0001] The invention relates to a highly reliable generalized space modulation method used in a generalized space modulation system based on joint mapping of antenna combinations and constellation diagrams, and belongs to the technical field of communication. Background technique [0002] With the rapid development of the communication industry, while people are enjoying the convenient and efficient experience brought by wireless communication, the demand for wireless communication services has also increased suddenly. The biggest problem in multiple-input multiple-output (MIMO) transmission technology for wireless communication is the guarantee of transmission effectiveness and reliability, which makes spatial modulation an indispensable MIMO transmission technology in today's society. [0003] Spatial Modulation (SM) technology is a spatial multiplexing MIMO transmission technology proposed in recent years. The spatial modulation technology has problems of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L27/20H04B7/0413
CPCH04B7/0413H04B7/0697H04L27/20
Inventor 应海晴吴贇蒋学芹白恩健
Owner DONGHUA UNIV
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