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A Scalable Method for Space Shift Keying Modulation

A technology of shift keying and extension method, which is applied in the scalable field of space shift keying modulation mode, can solve the problems of not fully exploiting the potential of antenna sequence combination, etc., achieve channel capacity improvement, increase information bits, and enhance processing capabilities Effect

Inactive Publication Date: 2019-02-15
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Spatial shift keying (SSK) is the simplest spatial modulation technique, but the combination potential of the antenna sequence has not been fully exploited

Method used

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  • A Scalable Method for Space Shift Keying Modulation
  • A Scalable Method for Space Shift Keying Modulation
  • A Scalable Method for Space Shift Keying Modulation

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Embodiment Construction

[0026] The present invention will be described in detail below.

[0027] The content of the present invention is mainly realized by encoding and decoding information, and the specific steps are as follows:

[0028] Step 1. Data preprocessing

[0029] Now take 4 antennas at the transmitting end as an example, there are a total of 15 antenna combinations available (except for the case of not selecting all, because it cannot be used in this case), for example, according to traditional SM or SSK, there are only 4 antenna combinations With the possibility activated, only 2 bits of information can be encoded by means of the antenna number. Now use 4 antennas to perform simple SSK modulation. Since the number of antenna sequence combinations is 15, at least 3 bits of data (here obtained by rounding down log215) bits of data can be transmitted each time. The receiving end needs to determine whether to use Which antenna sequence combination can restore the transmission information of...

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Abstract

The invention discloses an extensible method of spatial shift keying (SSK) modulation based on transmitting antenna selection. The method is characterized in comprising the steps of carrying out orthogonal code group binding on each antenna at a transmitting end; grouping data streams according to a specific length; carrying out spatial modulation mapping, and mapping the data streams to corresponding transmitting antenna combination, thereby obtaining a sequence of activated antennas and corresponding binding code groups; and transmitting the corresponding code groups by the activated antennas; and judging the sequence number and corresponding orthogonal codes of the transmitting antennas at a receiving end, and carrying out information restoration. The method is the technique for extending the simplest spatial modulation mode--spatial shift keying (SSK). Through reference of the method of a subcarrier density modulation technique in light communication, the application of the antenna sequence combination number in the spatial shift keying mode is increased; therefore, the information bits capable of being processed each time by the spatial shift keying is improved; the processing capability of the transmitting end to the information streams is improved; and the channel capacity is improved greatly.

Description

technical field [0001] The invention relates to the improvement technology of the space modulation mode in the wireless communication physical layer, in particular to an expandable method of space shift keying (SSK) modulation based on the selection of transmitting antennas. Background technique [0002] Spatial modulation is an improved modulation method based on multi-antenna MIMO technology. Unlike in MIMO systems, all antennas are activated simultaneously to transmit information. In the space modulation system, in a single time slot, only one transmitting antenna is selected to be active, and is used to transmit the mapping signal of part of the information in the block code, and the other part of the information in the block code is encoded on the serial number of the transmitting antenna . At the receiving end, the serial number of the antenna and the signal sent by the antenna are judged according to the predetermined judgment criterion, so as to recover the signal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04L27/36
CPCH04B7/0602H04L27/362
Inventor 王富强张广驰崔苗
Owner GUANGDONG UNIV OF TECH
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