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Space Shift Keying Modulation Method Based on Transmit Diversity

A technology of transmit diversity and modulation method, which is applied in phase-modulated carrier systems, digital transmission systems, electrical components, etc., can solve problems such as spectrum efficiency reduction, achieve high diversity gain, and improve the effect of bit error performance

Inactive Publication Date: 2017-04-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Space-time SSK-based technology uses multiple time slots to transmit a data, so the spectral efficiency of the system decreases gradually with the increase of slots

Method used

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  • Space Shift Keying Modulation Method Based on Transmit Diversity
  • Space Shift Keying Modulation Method Based on Transmit Diversity
  • Space Shift Keying Modulation Method Based on Transmit Diversity

Examples

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Embodiment Construction

[0022] Specific embodiments of the present invention will be given below in conjunction with the accompanying drawings. It should be noted that the parameters in the examples do not affect the generality of the present invention.

[0023] Consider the link of the traditional space-shift keying SSK system, such as figure 1 Shown: Traditional SSK system has N t root transmit antenna and N r Root receiving antenna. After channel coding, interleaving and other processing, the data c to be sent is generated, and the data c enters the SSK bit mapper to select the serial number of the sending antenna, and then activates the corresponding antenna to send the signal.

[0024] The traditional SSK system has only one antenna active at a certain time, so the transmitted signal can be written in the matrix form x=[00...1...0], and the transmitted signal x passes through N t Send N r The received MIMO channel and Gaussian white noise channel arrive at the receiving end.

[0025] The s...

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Abstract

The invention discloses a space shift key modulation method based on transmit diversity. The method of the invention is based on the traditional SSK modulation, combined with the transmit diversity mode for transmission and reception. The transmit end uses multiple time slots to send the same data. Different antenna mapping methods are used in different time slots, and at the same time, some additional data information is carried by using the combination of transmission symbols for activating antennas in different time slots. Therefore, the method of the present invention is an SSK modulation transmission method based on space diversity. Compared with traditional SSK, due to the diversity method of sending the same data in multiple time slots, the bit error performance of the system is improved; different mapping methods are used in different time slots to make the system obtain higher diversity gain; The transmitted symbols carry transmitted information, so the frequency efficiency of the system is further improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, relates to multiple input multiple output (Multiple Input Multiple Output, MIMO) technology, in particular to a space shift keying modulation (Space Shift Keying, SSK) MIMO method based on transmit diversity. Background technique [0002] As one of the key technologies in the future wireless communication field, multiple-input multiple-output technology has greatly improved the spectral efficiency (Spectrum Efficient, SE) of the system. MIMO technology based on space shift keying modulation is considered to be one of the important technologies in the future 5G system. one. [0003] The idea of ​​SSK technology is different from traditional MIMO technology in that traditional MIMO uses APM (Amplitude / PhaseModulation) modulation symbols to carry the transmitted binary data information, while SSK uses space shift keying modulation to carry the transmitted binary data information. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/18H04L1/00
Inventor 方舒李磊巫健李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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