Unlock instant, AI-driven research and patent intelligence for your innovation.

Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium

A communication method and index modulation technology, applied in the field of communication, can solve problems affecting the utilization rate of time-frequency resources and the complexity of demodulation algorithms, and achieve the effect of ensuring communication reliability and improving utilization rate

Active Publication Date: 2022-06-17
BEIJING SENSORO
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing communication technology can improve the utilization rate of time-frequency resources to a certain extent, there are still deficiencies, mainly due to the strict requirements for antenna synchronization, the complexity of the modulation of the transmitter and the demodulation algorithm of the receiver is usually relatively large, Thereby affecting the improvement of time-frequency resource utilization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium
  • Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium
  • Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] FIG. 1(a) is a flowchart of a spread spectrum index modulation communication method provided in Embodiment 1 of the present invention. This embodiment is applicable to a situation where a transmitter transmits a wireless communication signal, and the method specifically includes the following operations:

[0036] Step S101 , acquiring information to be transmitted, wherein the information to be transmitted includes a preset number of segment information.

[0037] 1(b) is a schematic diagram of the basic framework of the transmitter, and this embodiment mainly implements the spread spectrum index modulation communication method of this embodiment based on the basic framework of the transmitter shown in FIG. 1(b).

[0038] Optionally, acquiring the to-be-transmitted information may include: acquiring an original to-be-transmitted bit stream; and segmenting the original to-be-transmitted bit stream according to a preset number of bits to obtain the to-be-transmitted informa...

Embodiment 2

[0060] FIG. 2(a) is a flowchart of a spread spectrum index demodulation communication method provided in Embodiment 2 of the present invention. This embodiment is applicable to a situation where a receiver transmits a wireless communication signal, and the method specifically includes the following operations:

[0061] In step S201, a spread spectrum signal is obtained.

[0062] 2(b) is a schematic diagram of the basic framework of the transmitter, and this embodiment mainly implements the spread spectrum index demodulation communication method of this embodiment based on the basic framework of the transmitter shown in FIG. 2(b).

[0063] Optionally, obtaining the spread spectrum signal includes: performing IQ demodulation on the spread spectrum modulated signal sent by the transmitter to obtain a complex baseband signal; and performing time-frequency synchronization on the complex baseband signal to obtain a spread spectrum signal.

[0064] In this embodiment, the receiver pe...

Embodiment 3

[0078] image 3 It is a schematic structural diagram of a transmitter provided by an embodiment of the present invention. image 3 A block diagram of an exemplary transmitter 312 suitable for use in implementing embodiments of the present invention is shown. image 3 The shown transmitter 312 is only an example, and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

[0079] like image 3 As shown, transmitter 312 takes the form of a general purpose computing transmitter. Components of transmitter 312 may include, but are not limited to, one or more processors 316, memory 328, and a bus 318 connecting various system components including memory 328 and processor 316.

[0080] The bus 318 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. By way of exa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a spread spectrum index modulation and demodulation communication method, a transmitter, a receiver and a storage medium. The spread spectrum index modulation communication method includes: acquiring the information to be transmitted; evaluating the quality of the channel corresponding to the information to be transmitted to obtain the bit length of the code index information and the bit length of the modulation information; Bit grouping to obtain the code index information bit group and the modulation information bit group; obtain the spreading code sequence according to the code index information bit group, and obtain the modulation symbol according to the modulation information bit length and the modulation information bit group; according to the spreading code sequence and the modulation symbol Obtain a spread spectrum modulated signal. By dividing the information to be transmitted into code index information bit groups and modulation information bit groups through bit groups, part of the information to be transmitted is transmitted through spreading code sequences, which improves the utilization of time-frequency resources while ensuring communication reliability .

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a spread spectrum index modulation and demodulation communication method, transmitter, receiver and storage medium. Background technique [0002] Wireless communication has technical indicators of reliability and effectiveness, and effectiveness requires maximizing resource utilization within limited resources, and resources mainly include time domain resources and frequency domain resources. With the development of wireless communication technology, technologies such as source coding, space division multiplexing and beamforming can improve the utilization rate of time-frequency resources to a certain extent without changing the transmit power and bandwidth. [0003] Although the existing communication technology can improve the utilization rate of time-frequency resources to a certain extent, there are still shortcomings, mainly due to the str...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/707H04B1/7073
CPCH04B1/707H04B1/7073
Inventor 李晓明郑波浪李建龙刘伟
Owner BEIJING SENSORO