FTN (Faster than Nyquist) block transmission method based on DFT, transmitter, receiver and system

A technology of block transmission and transmitter, applied in the field of communication, can solve the problem of high complexity of super-Nyquist transmission

Active Publication Date: 2017-12-15
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a DFT-based FTN block transmis

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  • FTN (Faster than Nyquist) block transmission method based on DFT, transmitter, receiver and system
  • FTN (Faster than Nyquist) block transmission method based on DFT, transmitter, receiver and system
  • FTN (Faster than Nyquist) block transmission method based on DFT, transmitter, receiver and system

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Embodiment Construction

[0113] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0114] see Figure 1 to Figure 10 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, so that only the components related to the present invention are shown in the diagrams rather than the number, shape and Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the compo...

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Abstract

The invention provides a FTN (Faster than Nyquist) block transmission method based on DFT (Discrete Fourier Transform), a transmitter, a receiver and a system. Based on DFT and frequency domain windowing technologies, a conventional waveform generating and receiving matched filtering mode based on time domain convolution is equivalently implemented, and then by simple frequency domain equalization, channel multipath interference and self ISI (Inter-symbol interference) are eliminated in steps, so that an implementing structure for base band processing of a transmitting terminal and a receiving terminal is simplified. In addition, by further utilizing high efficiency of DFT calculation, according to the invention, an effect of effectively reducing implementation complexity of the transmitter and the receiver of the system can be achieved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a DFT-based FTN block transmission method, transmitter, receiver and system. Background technique [0002] With the explosive growth of wireless devices in recent years, especially the rapid popularization of smart devices capable of transmitting high-speed multimedia streams, wireless data traffic has shown an exponential growth trend. In the real dilemma of limited total spectrum resources, finding a transmission technology with higher spectrum efficiency is a crucial link in the design of future-oriented wireless communication systems. One of the potential technologies is super-Nyquist transmission (English: Faster than Nyquist, referred to as: FTN), FTN allows data transmission at a code rate higher than the Nyquist rate on the same bandwidth to improve frequency band utilization rate, thus triggering a research boom. [0003] The Nyquist criterion requires signals t...

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Application Information

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IPC IPC(8): H04L27/26H04L27/01
CPCH04L27/01H04L27/263H04L27/265
Inventor 李明齐来世豪
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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