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Modulation and demodulation methods of enhanced 6D (six-dimensional) 64PSK (64 phase shift keying)

A technology of 64PSK and demodulation method, which is applied in the field of modulation and demodulation of enhanced six-dimensional 64PSK, can solve problems such as inability to meet data transmission requirements, and achieve the effects of superior performance, good constellation point symmetry, and simple constellation structure

Inactive Publication Date: 2015-04-01
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0004] The existing relatively good modulation and demodulation methods are usually based on two-dimensional or three-dimensional constellation diagrams for modulation and demodulation, and its bit error rate, transmission power, signal-to-noise ratio and spectral efficiency have reached a certain limit. Modulation and demodulation can no longer meet the increasing demand for data transmission in the era of information expansion, and a new modulation and demodulation method is urgently needed

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  • Modulation and demodulation methods of enhanced 6D (six-dimensional) 64PSK (64 phase shift keying)
  • Modulation and demodulation methods of enhanced 6D (six-dimensional) 64PSK (64 phase shift keying)
  • Modulation and demodulation methods of enhanced 6D (six-dimensional) 64PSK (64 phase shift keying)

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[0033] The present invention will be further described below with reference to the drawings and embodiments.

[0034] The present invention provides an enhanced six-dimensional 64PSK modulation and demodulation method. The modulation method specifically includes the following steps:

[0035] (1) The modulation method includes the following steps:

[0036] (1-1) Map the first 3 bit symbols of the 6 bit symbols of 64PSK to the three-dimensional 8PSK signal modulation constellation represented by a three-dimensional rectangular coordinate system: the current 3 symbols are respectively 000 and 011 , 101, 110, 001, 010, 100 and 111, respectively map them to the signal point symbols A (0, -0.82, 0.58), B (0, 0.82, 0.58), C in the 3D 8PSK signal modulation constellation diagram (-0.82, 0, -0.58), D (0.82, 0, -0.58), E (-0.82, 0, 0.58), F (0.82, 0, 0.58), G (0, -0.82, -0.58) and H (0, 0.82, -0.58), signal point symbols A, B, C, D, E, F, G, and H constitute figure 1 B shown 0 (3) Constellat...

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Abstract

The invention relates to the technical field of wireless communication, in particular to modulation and demodulation methods of enhanced 6D (six-dimensional) 64PSK (64 phase shift keying). The modulation method of the enhanced 6D 64PSK expands two 3D (three-dimensional) 8PSK planispheres to a 6D signal space via a linear block code technology, and can increase a minimum Euclidean distance between signal points in the signal space under the same mean power so as to obtain certain demodulation gain. Experiments prove that the method has a lower error rate and provides a higher-speed and higher-reliability code modulation scheme for a future wireless communication technology compared with the traditional modulation technology.

Description

Technical field [0001] The invention relates to an enhanced six-dimensional 64PSK modulation and demodulation method, which belongs to the technical field of wireless communication. Background technique [0002] In the recent decades of the development of modern society, efficient and reliable wireless transmission has developed rapidly, and has achieved more and more widespread applications in all fields of society. One of the salient features of wireless communication technology is to enable high-speed data transmission on the basis of error control. In 1948, Shannon explained the channel coding theory for reliable communication in noisy channels. That is, the transmission rate required by the communication system is less than the channel capacity of the communication channel, there must be a coding method, when the code length is long enough, the error probability of the system can be arbitrarily small. Shannon pointed out the direction for future generations, and error-corr...

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Application Information

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IPC IPC(8): H04L27/18H04L27/20H04L27/22
CPCH04L27/18H04L27/20H04L27/22
Inventor 陈分雄付杰袁学剑王典洪刘乔西颜学杰王勇
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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