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Zero-delay related information source broadcast communication method

A technology of broadcast communication and information source, applied in the field of communication, can solve problems such as not being optimal

Active Publication Date: 2021-11-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, coding schemes based on source-channel separation are usually not optimal in a multi-user environment

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  • Zero-delay related information source broadcast communication method
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  • Zero-delay related information source broadcast communication method

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Embodiment Construction

[0032] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0033] Such as figure 1 As shown, the embodiment of the present invention provides a zero-delay correlation source broadcast communication method, including: Step 1, inputting a pair of memoryless and stable Gaussian correlation sources into an encoder, which is mapped into Two channels of separate channel symbols are output respectively; step 2, the channel symbols output by each channel are respectively superimposed with a Gaussian white noise signal, and then transmitted to a 1-bit analog-to-digital converter for processing; step 3, after the 1-bit modulus After being processed by the converter, the processed signal is transmitted to the decoder, and the decoder reconstructs the information source information at the user end. The first user pays atten...

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Abstract

The invention provides a zero-delay correlation information source broadcast communication method, and the method comprises the following steps: inputting a pair of memoryless and stable Gaussian correlation information sources into an encoder, mapping the Gaussian correlation information sources into two paths of independent channel symbols by the encoder, and respectively outputting the two paths of independent channel symbols; superposing the channel symbols output by each path with Gaussian white noise signals and then transmitting the superposed signal to a 1-bit analog-to-digital converter for processing; after the signal is processed by the 1-bit analog-to-digital converter, transmitting the processed signal to a decoder, enabling the decoder to reconstruct the information source information at a user side, enabling a first user to pay attention to the reconstruction of a first information source, and enabling a second user to pay attention to the reconstruction of a second information source; and judging the distortion performance of the system according to the reconstructed information source information. Through the non-parametric mapping algorithm, the distortion performance of the system can be improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a zero-delay related information source broadcast communication method. Background technique [0002] Modern wireless communication systems achieve reliable transmission of certain high-rate content types, such as Joint Photographic Experts Group (JPEG) and Moving Picture Experts Group (MPEG), by utilizing channel coding that approaches channel capacity and highly optimized compression algorithms. However, many emerging applications, such as the Internet of Things (IOT) or machine-to-machine communication (M2M), further limit the cost and complexity of communication equipment, or impose higher requirements on available energy and end-to-end delay, which Many known coding methods and modulation techniques are no longer applicable. For example, in time-sensitive control applications such as monitoring power line faults in smart grids, the underlying signals should be measured and deliver...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04L1/00
CPCH04W4/06H04L1/0009H04L1/0014Y02D30/70
Inventor 陈雪晨赵伟杰
Owner CENT SOUTH UNIV